WO1999041386A2 - Nouvelle endo-xylogalacturonase - Google Patents
Nouvelle endo-xylogalacturonase Download PDFInfo
- Publication number
- WO1999041386A2 WO1999041386A2 PCT/EP1999/000860 EP9900860W WO9941386A2 WO 1999041386 A2 WO1999041386 A2 WO 1999041386A2 EP 9900860 W EP9900860 W EP 9900860W WO 9941386 A2 WO9941386 A2 WO 9941386A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polypeptide
- polynucleotide
- sequence
- endo
- plant
- Prior art date
Links
- 229920001184 polypeptide Polymers 0.000 claims abstract description 139
- 108090000765 processed proteins & peptides Proteins 0.000 claims abstract description 139
- 102000004196 processed proteins & peptides Human genes 0.000 claims abstract description 139
- 239000000463 material Substances 0.000 claims abstract description 48
- 229920001277 pectin Polymers 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 claims abstract description 34
- 239000001814 pectin Substances 0.000 claims abstract description 34
- 235000010987 pectin Nutrition 0.000 claims abstract description 34
- 125000003275 alpha amino acid group Chemical group 0.000 claims abstract description 16
- 239000000419 plant extract Substances 0.000 claims abstract description 10
- 235000015203 fruit juice Nutrition 0.000 claims abstract description 5
- 210000005253 yeast cell Anatomy 0.000 claims abstract description 5
- 108091033319 polynucleotide Proteins 0.000 claims description 92
- 239000002157 polynucleotide Substances 0.000 claims description 92
- 102000040430 polynucleotide Human genes 0.000 claims description 92
- 210000004027 cell Anatomy 0.000 claims description 74
- 241000196324 Embryophyta Species 0.000 claims description 72
- 238000000034 method Methods 0.000 claims description 48
- 239000000203 mixture Substances 0.000 claims description 36
- 239000013598 vector Substances 0.000 claims description 30
- 125000003729 nucleotide group Chemical group 0.000 claims description 29
- 239000002773 nucleotide Substances 0.000 claims description 28
- 239000012634 fragment Substances 0.000 claims description 23
- 150000001413 amino acids Chemical class 0.000 claims description 18
- 238000003556 assay Methods 0.000 claims description 18
- 239000000758 substrate Substances 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 17
- 101001096557 Dickeya dadantii (strain 3937) Rhamnogalacturonate lyase Proteins 0.000 claims description 16
- 241000233866 Fungi Species 0.000 claims description 16
- 230000000295 complement effect Effects 0.000 claims description 16
- 108091026890 Coding region Proteins 0.000 claims description 15
- 239000000523 sample Substances 0.000 claims description 15
- 241000416162 Astragalus gummifer Species 0.000 claims description 14
- 229920001615 Tragacanth Polymers 0.000 claims description 14
- 241000228212 Aspergillus Species 0.000 claims description 13
- 108010059820 Polygalacturonase Proteins 0.000 claims description 13
- 150000001720 carbohydrates Chemical class 0.000 claims description 13
- 235000014633 carbohydrates Nutrition 0.000 claims description 13
- 210000002421 cell wall Anatomy 0.000 claims description 10
- 235000011389 fruit/vegetable juice Nutrition 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 9
- 235000013399 edible fruits Nutrition 0.000 claims description 9
- 239000013604 expression vector Substances 0.000 claims description 9
- 239000000284 extract Substances 0.000 claims description 8
- 230000000593 degrading effect Effects 0.000 claims description 7
- 241001465754 Metazoa Species 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000002068 genetic effect Effects 0.000 claims description 5
- 235000013311 vegetables Nutrition 0.000 claims description 5
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical compound [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 claims description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 3
- AFYNADDZULBEJA-UHFFFAOYSA-N bicinchoninic acid Chemical compound C1=CC=CC2=NC(C=3C=C(C4=CC=CC=C4N=3)C(=O)O)=CC(C(O)=O)=C21 AFYNADDZULBEJA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 238000012258 culturing Methods 0.000 claims description 2
- 235000015192 vegetable juice Nutrition 0.000 claims description 2
- 229940127573 compound 38 Drugs 0.000 claims 1
- PIDFDZJZLOTZTM-KHVQSSSXSA-N ombitasvir Chemical compound COC(=O)N[C@@H](C(C)C)C(=O)N1CCC[C@H]1C(=O)NC1=CC=C([C@H]2N([C@@H](CC2)C=2C=CC(NC(=O)[C@H]3N(CCC3)C(=O)[C@@H](NC(=O)OC)C(C)C)=CC=2)C=2C=CC(=CC=2)C(C)(C)C)C=C1 PIDFDZJZLOTZTM-KHVQSSSXSA-N 0.000 claims 1
- 125000001424 substituent group Chemical group 0.000 claims 1
- 102000004190 Enzymes Human genes 0.000 abstract description 57
- 108090000790 Enzymes Proteins 0.000 abstract description 57
- 108091028043 Nucleic acid sequence Proteins 0.000 abstract description 27
- 238000002360 preparation method Methods 0.000 abstract description 15
- 229920000642 polymer Polymers 0.000 abstract description 14
- IAJILQKETJEXLJ-UHFFFAOYSA-N Galacturonsaeure Natural products O=CC(O)C(O)C(O)C(O)C(O)=O IAJILQKETJEXLJ-UHFFFAOYSA-N 0.000 abstract description 11
- AEMOLEFTQBMNLQ-YMDCURPLSA-N D-galactopyranuronic acid Chemical compound OC1O[C@H](C(O)=O)[C@H](O)[C@H](O)[C@H]1O AEMOLEFTQBMNLQ-YMDCURPLSA-N 0.000 abstract description 4
- 239000005418 vegetable material Substances 0.000 abstract 1
- 229940088598 enzyme Drugs 0.000 description 56
- 108090000623 proteins and genes Proteins 0.000 description 48
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 28
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 27
- 230000002538 fungal effect Effects 0.000 description 25
- 239000002299 complementary DNA Substances 0.000 description 24
- SRBFZHDQGSBBOR-IOVATXLUSA-N Xylose Natural products O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 description 19
- 235000001014 amino acid Nutrition 0.000 description 18
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 description 17
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 description 17
- 230000015556 catabolic process Effects 0.000 description 17
- IAJILQKETJEXLJ-RSJOWCBRSA-N aldehydo-D-galacturonic acid Chemical group O=C[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)C(O)=O IAJILQKETJEXLJ-RSJOWCBRSA-N 0.000 description 16
- 238000006731 degradation reaction Methods 0.000 description 16
- 102000004169 proteins and genes Human genes 0.000 description 16
- 108010076504 Protein Sorting Signals Proteins 0.000 description 15
- 239000000243 solution Substances 0.000 description 15
- 235000018102 proteins Nutrition 0.000 description 14
- 241000894007 species Species 0.000 description 14
- -1 ATP-synthetase Proteins 0.000 description 13
- 239000002609 medium Substances 0.000 description 13
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 12
- 239000000872 buffer Substances 0.000 description 12
- 238000011534 incubation Methods 0.000 description 12
- 108020004414 DNA Proteins 0.000 description 11
- 238000006467 substitution reaction Methods 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 125000000969 xylosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)CO1)* 0.000 description 11
- 235000010469 Glycine max Nutrition 0.000 description 10
- 241000220225 Malus Species 0.000 description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 238000012781 high pressure - size exclusion chromatography Methods 0.000 description 10
- 230000009466 transformation Effects 0.000 description 10
- 241000228245 Aspergillus niger Species 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 8
- GLUUGHFHXGJENI-UHFFFAOYSA-N Piperazine Chemical compound C1CNCCN1 GLUUGHFHXGJENI-UHFFFAOYSA-N 0.000 description 8
- 230000001580 bacterial effect Effects 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 108010073178 Glucan 1,4-alpha-Glucosidase Proteins 0.000 description 7
- 241001138401 Kluyveromyces lactis Species 0.000 description 7
- 239000003550 marker Substances 0.000 description 7
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 description 6
- 241000351920 Aspergillus nidulans Species 0.000 description 6
- 238000007792 addition Methods 0.000 description 6
- 235000015197 apple juice Nutrition 0.000 description 6
- 235000021016 apples Nutrition 0.000 description 6
- 238000010828 elution Methods 0.000 description 6
- 108010093305 exopolygalacturonase Proteins 0.000 description 6
- 238000000855 fermentation Methods 0.000 description 6
- 230000004151 fermentation Effects 0.000 description 6
- BRZYSWJRSDMWLG-CAXSIQPQSA-N geneticin Natural products O1C[C@@](O)(C)[C@H](NC)[C@@H](O)[C@H]1O[C@@H]1[C@@H](O)[C@H](O[C@@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](C(C)O)O2)N)[C@@H](N)C[C@H]1N BRZYSWJRSDMWLG-CAXSIQPQSA-N 0.000 description 6
- 230000003993 interaction Effects 0.000 description 6
- 238000003752 polymerase chain reaction Methods 0.000 description 6
- 230000028327 secretion Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 235000000346 sugar Nutrition 0.000 description 6
- 108010021809 Alcohol dehydrogenase Proteins 0.000 description 5
- 102000007698 Alcohol dehydrogenase Human genes 0.000 description 5
- 241000228232 Aspergillus tubingensis Species 0.000 description 5
- 244000068988 Glycine max Species 0.000 description 5
- 241000235649 Kluyveromyces Species 0.000 description 5
- 241000235648 Pichia Species 0.000 description 5
- 241000235070 Saccharomyces Species 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 150000007523 nucleic acids Chemical class 0.000 description 5
- 239000013612 plasmid Substances 0.000 description 5
- 239000010318 polygalacturonic acid Substances 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- 241000193830 Bacillus <bacterium> Species 0.000 description 4
- 108020004705 Codon Proteins 0.000 description 4
- 241000588724 Escherichia coli Species 0.000 description 4
- 101150108358 GLAA gene Proteins 0.000 description 4
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 229920002230 Pectic acid Polymers 0.000 description 4
- 108091034057 RNA (poly(A)) Proteins 0.000 description 4
- 102000005924 Triose-Phosphate Isomerase Human genes 0.000 description 4
- 108700015934 Triose-phosphate isomerases Proteins 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000012512 characterization method Methods 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000003776 cleavage reaction Methods 0.000 description 4
- 238000010367 cloning Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 238000009396 hybridization Methods 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 244000005700 microbiome Species 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 230000007017 scission Effects 0.000 description 4
- 239000001509 sodium citrate Substances 0.000 description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 4
- 150000008163 sugars Chemical class 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 101150076573 xghA gene Proteins 0.000 description 4
- 241001513093 Aspergillus awamori Species 0.000 description 3
- 240000006439 Aspergillus oryzae Species 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 3
- 241001085826 Sporotrichum Species 0.000 description 3
- 241000223259 Trichoderma Species 0.000 description 3
- 125000002777 acetyl group Chemical group [H]C([H])([H])C(*)=O 0.000 description 3
- 238000005903 acid hydrolysis reaction Methods 0.000 description 3
- 108090000637 alpha-Amylases Proteins 0.000 description 3
- AEMOLEFTQBMNLQ-BKBMJHBISA-N alpha-D-galacturonic acid Chemical group O[C@H]1O[C@H](C(O)=O)[C@H](O)[C@H](O)[C@H]1O AEMOLEFTQBMNLQ-BKBMJHBISA-N 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- AEMOLEFTQBMNLQ-UHFFFAOYSA-N beta-D-galactopyranuronic acid Natural products OC1OC(C(O)=O)C(O)C(O)C1O AEMOLEFTQBMNLQ-UHFFFAOYSA-N 0.000 description 3
- 108010005774 beta-Galactosidase Proteins 0.000 description 3
- 229960002685 biotin Drugs 0.000 description 3
- 235000020958 biotin Nutrition 0.000 description 3
- 239000011616 biotin Substances 0.000 description 3
- 229940041514 candida albicans extract Drugs 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 229910000366 copper(II) sulfate Inorganic materials 0.000 description 3
- 239000007857 degradation product Substances 0.000 description 3
- 238000012217 deletion Methods 0.000 description 3
- 230000037430 deletion Effects 0.000 description 3
- 239000003085 diluting agent Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 229930182830 galactose Natural products 0.000 description 3
- 239000000499 gel Substances 0.000 description 3
- 102000006602 glyceraldehyde-3-phosphate dehydrogenase Human genes 0.000 description 3
- 108020004445 glyceraldehyde-3-phosphate dehydrogenase Proteins 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 108020004999 messenger RNA Proteins 0.000 description 3
- 235000013384 milk substitute Nutrition 0.000 description 3
- 102000039446 nucleic acids Human genes 0.000 description 3
- 108020004707 nucleic acids Proteins 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000010076 replication Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000013518 transcription Methods 0.000 description 3
- 230000035897 transcription Effects 0.000 description 3
- 108010083879 xyloglucan endo(1-4)-beta-D-glucanase Proteins 0.000 description 3
- 239000012138 yeast extract Substances 0.000 description 3
- GHOKWGTUZJEAQD-ZETCQYMHSA-N (D)-(+)-Pantothenic acid Chemical compound OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-ZETCQYMHSA-N 0.000 description 2
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 2
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 2
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 2
- 241001019659 Acremonium <Plectosphaerellaceae> Species 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 2
- 108010025188 Alcohol oxidase Proteins 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- 108010065511 Amylases Proteins 0.000 description 2
- 241000228215 Aspergillus aculeatus Species 0.000 description 2
- 241000892910 Aspergillus foetidus Species 0.000 description 2
- 241001480052 Aspergillus japonicus Species 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 108010084185 Cellulases Proteins 0.000 description 2
- 102000005575 Cellulases Human genes 0.000 description 2
- 108010008885 Cellulose 1,4-beta-Cellobiosidase Proteins 0.000 description 2
- 235000005979 Citrus limon Nutrition 0.000 description 2
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 108020004635 Complementary DNA Proteins 0.000 description 2
- 101800000778 Cytochrome b-c1 complex subunit 9 Proteins 0.000 description 2
- 102400000011 Cytochrome b-c1 complex subunit 9 Human genes 0.000 description 2
- SHZGCJCMOBCMKK-UHFFFAOYSA-N D-mannomethylose Natural products CC1OC(O)C(O)C(O)C1O SHZGCJCMOBCMKK-UHFFFAOYSA-N 0.000 description 2
- 101100271445 Emericella nidulans (strain FGSC A4 / ATCC 38163 / CBS 112.46 / NRRL 194 / M139) atp9 gene Proteins 0.000 description 2
- 101710121765 Endo-1,4-beta-xylanase Proteins 0.000 description 2
- 241000223218 Fusarium Species 0.000 description 2
- 108700007698 Genetic Terminator Regions Proteins 0.000 description 2
- 102100022624 Glucoamylase Human genes 0.000 description 2
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- 108010060309 Glucuronidase Proteins 0.000 description 2
- 102000053187 Glucuronidase Human genes 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007836 KH2PO4 Substances 0.000 description 2
- SHZGCJCMOBCMKK-JFNONXLTSA-N L-rhamnopyranose Chemical compound C[C@@H]1OC(O)[C@H](O)[C@H](O)[C@H]1O SHZGCJCMOBCMKK-JFNONXLTSA-N 0.000 description 2
- PNNNRSAQSRJVSB-UHFFFAOYSA-N L-rhamnose Natural products CC(O)C(O)C(O)C(O)C=O PNNNRSAQSRJVSB-UHFFFAOYSA-N 0.000 description 2
- 108010059881 Lactase Proteins 0.000 description 2
- 229910004619 Na2MoO4 Inorganic materials 0.000 description 2
- 241000221960 Neurospora Species 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- 108010029182 Pectin lyase Proteins 0.000 description 2
- 241000228143 Penicillium Species 0.000 description 2
- 102000011755 Phosphoglycerate Kinase Human genes 0.000 description 2
- 108700023219 Phosphoglycerate kinases Proteins 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 2
- 241000018646 Pinus brutia Species 0.000 description 2
- 235000011613 Pinus brutia Nutrition 0.000 description 2
- 240000004713 Pisum sativum Species 0.000 description 2
- 235000010582 Pisum sativum Nutrition 0.000 description 2
- 241000589516 Pseudomonas Species 0.000 description 2
- 102000013009 Pyruvate Kinase Human genes 0.000 description 2
- 108020005115 Pyruvate Kinase Proteins 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- PXIPVTKHYLBLMZ-UHFFFAOYSA-N Sodium azide Chemical compound [Na+].[N-]=[N+]=[N-] PXIPVTKHYLBLMZ-UHFFFAOYSA-N 0.000 description 2
- 238000002105 Southern blotting Methods 0.000 description 2
- 235000019764 Soybean Meal Nutrition 0.000 description 2
- 108091081024 Start codon Proteins 0.000 description 2
- 241000228341 Talaromyces Species 0.000 description 2
- 241000228178 Thermoascus Species 0.000 description 2
- 241001494489 Thielavia Species 0.000 description 2
- 241001495429 Thielavia terrestris Species 0.000 description 2
- 241000499912 Trichoderma reesei Species 0.000 description 2
- 241000219094 Vitaceae Species 0.000 description 2
- IXKSXJFAGXLQOQ-XISFHERQSA-N WHWLQLKPGQPMY Chemical compound C([C@@H](C(=O)N[C@@H](CC=1C2=CC=CC=C2NC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N1CCC[C@H]1C(=O)NCC(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(O)=O)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CC=1C=CC(O)=CC=1)C(O)=O)NC(=O)[C@@H](N)CC=1C2=CC=CC=C2NC=1)C1=CNC=N1 IXKSXJFAGXLQOQ-XISFHERQSA-N 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 2
- 108010048241 acetamidase Proteins 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 102000004139 alpha-Amylases Human genes 0.000 description 2
- 229940024171 alpha-amylase Drugs 0.000 description 2
- 101150069003 amdS gene Proteins 0.000 description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 2
- 229960000723 ampicillin Drugs 0.000 description 2
- AVKUERGKIZMTKX-NJBDSQKTSA-N ampicillin Chemical compound C1([C@@H](N)C(=O)N[C@H]2[C@H]3SC([C@@H](N3C2=O)C(O)=O)(C)C)=CC=CC=C1 AVKUERGKIZMTKX-NJBDSQKTSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- CKLJMWTZIZZHCS-REOHCLBHSA-N aspartic acid group Chemical group N[C@@H](CC(=O)O)C(=O)O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 235000010980 cellulose Nutrition 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000012411 cloning technique Methods 0.000 description 2
- 239000013599 cloning vector Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 229940079919 digestives enzyme preparation Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 230000013595 glycosylation Effects 0.000 description 2
- 235000021021 grapes Nutrition 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 2
- 239000000413 hydrolysate Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000011713 pantothenic acid Substances 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 2
- 210000001236 prokaryotic cell Anatomy 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- LXNHXLLTXMVWPM-UHFFFAOYSA-N pyridoxine Chemical compound CC1=NC=C(CO)C(CO)=C1O LXNHXLLTXMVWPM-UHFFFAOYSA-N 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000003259 recombinant expression Methods 0.000 description 2
- 108091008146 restriction endonucleases Proteins 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000002415 sodium dodecyl sulfate polyacrylamide gel electrophoresis Methods 0.000 description 2
- 239000011684 sodium molybdate Substances 0.000 description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000004455 soybean meal Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229960003495 thiamine Drugs 0.000 description 2
- 230000005030 transcription termination Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- 239000011686 zinc sulphate Substances 0.000 description 2
- MTCFGRXMJLQNBG-REOHCLBHSA-N (2S)-2-Amino-3-hydroxypropansäure Chemical compound OC[C@H](N)C(O)=O MTCFGRXMJLQNBG-REOHCLBHSA-N 0.000 description 1
- BRZYSWJRSDMWLG-DJWUNRQOSA-N (2r,3r,4r,5r)-2-[(1s,2s,3r,4s,6r)-4,6-diamino-3-[(2s,3r,4r,5s,6r)-3-amino-4,5-dihydroxy-6-[(1r)-1-hydroxyethyl]oxan-2-yl]oxy-2-hydroxycyclohexyl]oxy-5-methyl-4-(methylamino)oxane-3,5-diol Chemical compound O1C[C@@](O)(C)[C@H](NC)[C@@H](O)[C@H]1O[C@@H]1[C@@H](O)[C@H](O[C@@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H]([C@@H](C)O)O2)N)[C@@H](N)C[C@H]1N BRZYSWJRSDMWLG-DJWUNRQOSA-N 0.000 description 1
- LSBBTAADKDXXET-JXWIOSNQSA-N (2s,3r,4s,5r)-2,3,4,5-tetrahydroxy-6-oxohexanoic acid;(2r,3s,4r)-2,3,4,5-tetrahydroxypentanal Chemical class OC[C@@H](O)[C@H](O)[C@@H](O)C=O.O=C[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)C(O)=O LSBBTAADKDXXET-JXWIOSNQSA-N 0.000 description 1
- HNSDLXPSAYFUHK-UHFFFAOYSA-N 1,4-bis(2-ethylhexyl) sulfosuccinate Chemical compound CCCCC(CC)COC(=O)CC(S(O)(=O)=O)C(=O)OCC(CC)CCCC HNSDLXPSAYFUHK-UHFFFAOYSA-N 0.000 description 1
- OHVLMTFVQDZYHP-UHFFFAOYSA-N 1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-2-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound N1N=NC=2CN(CCC=21)C(CN1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)=O OHVLMTFVQDZYHP-UHFFFAOYSA-N 0.000 description 1
- HMUNWXXNJPVALC-UHFFFAOYSA-N 1-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)C(CN1CC2=C(CC1)NN=N2)=O HMUNWXXNJPVALC-UHFFFAOYSA-N 0.000 description 1
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 description 1
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QRBLKGHRWFGINE-UGWAGOLRSA-N 2-[2-[2-[[2-[[4-[[2-[[6-amino-2-[3-amino-1-[(2,3-diamino-3-oxopropyl)amino]-3-oxopropyl]-5-methylpyrimidine-4-carbonyl]amino]-3-[(2r,3s,4s,5s,6s)-3-[(2s,3r,4r,5s)-4-carbamoyl-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)- Chemical compound N=1C(C=2SC=C(N=2)C(N)=O)CSC=1CCNC(=O)C(C(C)=O)NC(=O)C(C)C(O)C(C)NC(=O)C(C(O[C@H]1[C@@]([C@@H](O)[C@H](O)[C@H](CO)O1)(C)O[C@H]1[C@@H]([C@](O)([C@@H](O)C(CO)O1)C(N)=O)O)C=1NC=NC=1)NC(=O)C1=NC(C(CC(N)=O)NCC(N)C(N)=O)=NC(N)=C1C QRBLKGHRWFGINE-UGWAGOLRSA-N 0.000 description 1
- WZFUQSJFWNHZHM-UHFFFAOYSA-N 2-[4-[2-(2,3-dihydro-1H-inden-2-ylamino)pyrimidin-5-yl]piperazin-1-yl]-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethanone Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)N1CCN(CC1)CC(=O)N1CC2=C(CC1)NN=N2 WZFUQSJFWNHZHM-UHFFFAOYSA-N 0.000 description 1
- OSJPPGNTCRNQQC-UWTATZPHSA-N 3-phospho-D-glyceric acid Chemical compound OC(=O)[C@H](O)COP(O)(O)=O OSJPPGNTCRNQQC-UWTATZPHSA-N 0.000 description 1
- SATHPVQTSSUFFW-UHFFFAOYSA-N 4-[6-[(3,5-dihydroxy-4-methoxyoxan-2-yl)oxymethyl]-3,5-dihydroxy-4-methoxyoxan-2-yl]oxy-2-(hydroxymethyl)-6-methyloxane-3,5-diol Chemical group OC1C(OC)C(O)COC1OCC1C(O)C(OC)C(O)C(OC2C(C(CO)OC(C)C2O)O)O1 SATHPVQTSSUFFW-UHFFFAOYSA-N 0.000 description 1
- 108010011619 6-Phytase Proteins 0.000 description 1
- 244000291564 Allium cepa Species 0.000 description 1
- 235000002732 Allium cepa var. cepa Nutrition 0.000 description 1
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 244000099147 Ananas comosus Species 0.000 description 1
- 235000007119 Ananas comosus Nutrition 0.000 description 1
- 241000024188 Andala Species 0.000 description 1
- 240000000662 Anethum graveolens Species 0.000 description 1
- 240000007087 Apium graveolens Species 0.000 description 1
- 235000015849 Apium graveolens Dulce Group Nutrition 0.000 description 1
- 235000010591 Appio Nutrition 0.000 description 1
- 101710152845 Arabinogalactan endo-beta-1,4-galactanase Proteins 0.000 description 1
- 208000002109 Argyria Diseases 0.000 description 1
- 241000228195 Aspergillus ficuum Species 0.000 description 1
- 235000002247 Aspergillus oryzae Nutrition 0.000 description 1
- 241000131386 Aspergillus sojae Species 0.000 description 1
- 101100317631 Aspergillus tubingensis xynA gene Proteins 0.000 description 1
- 241000193744 Bacillus amyloliquefaciens Species 0.000 description 1
- 241000194108 Bacillus licheniformis Species 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- 108010023063 Bacto-peptone Proteins 0.000 description 1
- 241000486634 Bena Species 0.000 description 1
- 102100026189 Beta-galactosidase Human genes 0.000 description 1
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 241000314857 Calcarisporiella Species 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 108010059892 Cellulase Proteins 0.000 description 1
- 241000221955 Chaetomium Species 0.000 description 1
- GHOKWGTUZJEAQD-UHFFFAOYSA-N Chick antidermatitis factor Natural products OCC(C)(C)C(O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-UHFFFAOYSA-N 0.000 description 1
- 241000744472 Cinna Species 0.000 description 1
- 244000241235 Citrullus lanatus Species 0.000 description 1
- 235000012828 Citrullus lanatus var citroides Nutrition 0.000 description 1
- 241000207199 Citrus Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241001672694 Citrus reticulata Species 0.000 description 1
- 229910021580 Cobalt(II) chloride Inorganic materials 0.000 description 1
- 108091033380 Coding strand Proteins 0.000 description 1
- 108700010070 Codon Usage Proteins 0.000 description 1
- 241001252397 Corynascus Species 0.000 description 1
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 235000017788 Cydonia oblonga Nutrition 0.000 description 1
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- 230000004544 DNA amplification Effects 0.000 description 1
- 238000007399 DNA isolation Methods 0.000 description 1
- 244000000626 Daucus carota Species 0.000 description 1
- 235000002767 Daucus carota Nutrition 0.000 description 1
- 101000693248 Dickeya chrysanthemi Exo-poly-alpha-D-galacturonosidase Proteins 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 101710147028 Endo-beta-1,4-galactanase Proteins 0.000 description 1
- YQYJSBFKSSDGFO-UHFFFAOYSA-N Epihygromycin Natural products OC1C(O)C(C(=O)C)OC1OC(C(=C1)O)=CC=C1C=C(C)C(=O)NC1C(O)C(O)C2OCOC2C1O YQYJSBFKSSDGFO-UHFFFAOYSA-N 0.000 description 1
- 108090000371 Esterases Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000206602 Eukaryota Species 0.000 description 1
- 101710089384 Extracellular protease Proteins 0.000 description 1
- 240000009088 Fragaria x ananassa Species 0.000 description 1
- 108700005088 Fungal Genes Proteins 0.000 description 1
- 241000223195 Fusarium graminearum Species 0.000 description 1
- 108700039691 Genetic Promoter Regions Proteins 0.000 description 1
- 108050008938 Glucoamylases Proteins 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 101100295959 Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1) arcB gene Proteins 0.000 description 1
- 238000011993 High Performance Size Exclusion Chromatography Methods 0.000 description 1
- 241000223198 Humicola Species 0.000 description 1
- 102100034343 Integrase Human genes 0.000 description 1
- 108091092195 Intron Proteins 0.000 description 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 1
- 241000170280 Kluyveromyces sp. Species 0.000 description 1
- AYFVYJQAPQTCCC-GBXIJSLDSA-N L-threonine Chemical compound C[C@@H](O)[C@H](N)C(O)=O AYFVYJQAPQTCCC-GBXIJSLDSA-N 0.000 description 1
- OUYCCCASQSFEME-QMMMGPOBSA-N L-tyrosine Chemical compound OC(=O)[C@@H](N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-QMMMGPOBSA-N 0.000 description 1
- 101150022713 LAC4 gene Proteins 0.000 description 1
- 241000446313 Lamella Species 0.000 description 1
- 102000003960 Ligases Human genes 0.000 description 1
- 108090000364 Ligases Proteins 0.000 description 1
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- GLFNIEUTAYBVOC-UHFFFAOYSA-L Manganese chloride Chemical compound Cl[Mn]Cl GLFNIEUTAYBVOC-UHFFFAOYSA-L 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 241000235395 Mucor Species 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000004988 N-glycosylation Effects 0.000 description 1
- 229930193140 Neomycin Natural products 0.000 description 1
- 241000221961 Neurospora crassa Species 0.000 description 1
- 108020004711 Nucleic Acid Probes Proteins 0.000 description 1
- 241000320412 Ogataea angusta Species 0.000 description 1
- 108700026244 Open Reading Frames Proteins 0.000 description 1
- 102100037214 Orotidine 5'-phosphate decarboxylase Human genes 0.000 description 1
- 108010055012 Orotidine-5'-phosphate decarboxylase Proteins 0.000 description 1
- 102000004316 Oxidoreductases Human genes 0.000 description 1
- 108090000854 Oxidoreductases Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000228150 Penicillium chrysogenum Species 0.000 description 1
- 239000001888 Peptone Substances 0.000 description 1
- 108010080698 Peptones Proteins 0.000 description 1
- LTQCLFMNABRKSH-UHFFFAOYSA-N Phleomycin Natural products N=1C(C=2SC=C(N=2)C(N)=O)CSC=1CCNC(=O)C(C(O)C)NC(=O)C(C)C(O)C(C)NC(=O)C(C(OC1C(C(O)C(O)C(CO)O1)OC1C(C(OC(N)=O)C(O)C(CO)O1)O)C=1NC=NC=1)NC(=O)C1=NC(C(CC(N)=O)NCC(N)C(N)=O)=NC(N)=C1C LTQCLFMNABRKSH-UHFFFAOYSA-N 0.000 description 1
- 108010035235 Phleomycins Proteins 0.000 description 1
- 108091000080 Phosphotransferase Proteins 0.000 description 1
- 108091036407 Polyadenylation Proteins 0.000 description 1
- 108010039918 Polylysine Proteins 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 244000141353 Prunus domestica Species 0.000 description 1
- 239000004373 Pullulan Substances 0.000 description 1
- 229920001218 Pullulan Polymers 0.000 description 1
- 241000220324 Pyrus Species 0.000 description 1
- 108010092799 RNA-directed DNA polymerase Proteins 0.000 description 1
- CVBNMWXECPZOLM-UHFFFAOYSA-N Rhamnetin Natural products COc1cc(O)c2C(=O)C(=C(Oc2c1)c3ccc(O)c(O)c3O)O CVBNMWXECPZOLM-UHFFFAOYSA-N 0.000 description 1
- 240000001890 Ribes hudsonianum Species 0.000 description 1
- 235000016954 Ribes hudsonianum Nutrition 0.000 description 1
- 235000001466 Ribes nigrum Nutrition 0.000 description 1
- 244000281247 Ribes rubrum Species 0.000 description 1
- 235000016911 Ribes sativum Nutrition 0.000 description 1
- 235000002355 Ribes spicatum Nutrition 0.000 description 1
- 235000016897 Ribes triste Nutrition 0.000 description 1
- 102000002278 Ribosomal Proteins Human genes 0.000 description 1
- 108010000605 Ribosomal Proteins Proteins 0.000 description 1
- 240000007651 Rubus glaucus Species 0.000 description 1
- 241000235346 Schizosaccharomyces Species 0.000 description 1
- 241000235347 Schizosaccharomyces pombe Species 0.000 description 1
- 239000012506 Sephacryl® Substances 0.000 description 1
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 1
- 240000003768 Solanum lycopersicum Species 0.000 description 1
- 244000107946 Spondias cytherea Species 0.000 description 1
- 241000187747 Streptomyces Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 108020005038 Terminator Codon Proteins 0.000 description 1
- 241000223257 Thermomyces Species 0.000 description 1
- JZRWCGZRTZMZEH-UHFFFAOYSA-N Thiamine Natural products CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 description 1
- RYYWUUFWQRZTIU-UHFFFAOYSA-N Thiophosphoric acid Chemical group OP(O)(S)=O RYYWUUFWQRZTIU-UHFFFAOYSA-N 0.000 description 1
- 108091036066 Three prime untranslated region Proteins 0.000 description 1
- AYFVYJQAPQTCCC-UHFFFAOYSA-N Threonine Natural products CC(O)C(N)C(O)=O AYFVYJQAPQTCCC-UHFFFAOYSA-N 0.000 description 1
- 239000004473 Threonine Substances 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 240000006909 Tilia x europaea Species 0.000 description 1
- 240000001717 Vaccinium macrocarpon Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 241000235013 Yarrowia Species 0.000 description 1
- 241000235015 Yarrowia lipolytica Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- DFPAKSUCGFBDDF-ZQBYOMGUSA-N [14c]-nicotinamide Chemical compound N[14C](=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-ZQBYOMGUSA-N 0.000 description 1
- 239000008351 acetate buffer Substances 0.000 description 1
- 230000021736 acetylation Effects 0.000 description 1
- 238000006640 acetylation reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000011543 agarose gel Substances 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- WQZGKKKJIJFFOK-PHYPRBDBSA-N alpha-D-galactose Chemical compound OC[C@H]1O[C@H](O)[C@H](O)[C@@H](O)[C@H]1O WQZGKKKJIJFFOK-PHYPRBDBSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 125000000539 amino acid group Chemical group 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 229940025131 amylases Drugs 0.000 description 1
- 238000005571 anion exchange chromatography Methods 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- PYMYPHUHKUWMLA-WDCZJNDASA-N arabinose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C=O PYMYPHUHKUWMLA-WDCZJNDASA-N 0.000 description 1
- 125000000089 arabinosyl group Chemical group C1([C@@H](O)[C@H](O)[C@H](O)CO1)* 0.000 description 1
- 101150008194 argB gene Proteins 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- RIOXQFHNBCKOKP-UHFFFAOYSA-N benomyl Chemical compound C1=CC=C2N(C(=O)NCCCC)C(NC(=O)OC)=NC2=C1 RIOXQFHNBCKOKP-UHFFFAOYSA-N 0.000 description 1
- MITFXPHMIHQXPI-UHFFFAOYSA-N benzoxaprofen Natural products N=1C2=CC(C(C(O)=O)C)=CC=C2OC=1C1=CC=C(Cl)C=C1 MITFXPHMIHQXPI-UHFFFAOYSA-N 0.000 description 1
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 description 1
- 102000005936 beta-Galactosidase Human genes 0.000 description 1
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- UBXYXCRCOKCZIT-UHFFFAOYSA-N biphenyl-3-ol Chemical group OC1=CC=CC(C=2C=CC=CC=2)=C1 UBXYXCRCOKCZIT-UHFFFAOYSA-N 0.000 description 1
- 238000010804 cDNA synthesis Methods 0.000 description 1
- 238000010805 cDNA synthesis kit Methods 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000006285 cell suspension Substances 0.000 description 1
- 229940106157 cellulase Drugs 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 235000020971 citrus fruits Nutrition 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000021019 cranberries Nutrition 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- PCHPORCSPXIHLZ-UHFFFAOYSA-N diphenhydramine hydrochloride Chemical compound [Cl-].C=1C=CC=CC=1C(OCC[NH+](C)C)C1=CC=CC=C1 PCHPORCSPXIHLZ-UHFFFAOYSA-N 0.000 description 1
- 150000002016 disaccharides Chemical class 0.000 description 1
- 238000004520 electroporation Methods 0.000 description 1
- 239000012149 elution buffer Substances 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 230000007515 enzymatic degradation Effects 0.000 description 1
- 230000006862 enzymatic digestion Effects 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 239000003797 essential amino acid Substances 0.000 description 1
- 235000020776 essential amino acid Nutrition 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000013613 expression plasmid Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 125000002446 fucosyl group Chemical group C1([C@@H](O)[C@H](O)[C@H](O)[C@@H](O1)C)* 0.000 description 1
- 229940009493 gel-one Drugs 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002414 glycolytic effect Effects 0.000 description 1
- 238000006206 glycosylation reaction Methods 0.000 description 1
- 125000003630 glycyl group Chemical group [H]N([H])C([H])([H])C(*)=O 0.000 description 1
- 101150073906 gpdA gene Proteins 0.000 description 1
- 230000012010 growth Effects 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 125000000487 histidyl group Chemical group [H]N([H])C(C(=O)O*)C([H])([H])C1=C([H])N([H])C([H])=N1 0.000 description 1
- 238000002744 homologous recombination Methods 0.000 description 1
- 230000006801 homologous recombination Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 229960000367 inositol Drugs 0.000 description 1
- CDAISMWEOUEBRE-GPIVLXJGSA-N inositol Chemical compound O[C@H]1[C@H](O)[C@@H](O)[C@H](O)[C@H](O)[C@@H]1O CDAISMWEOUEBRE-GPIVLXJGSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 229940116108 lactase Drugs 0.000 description 1
- 235000021374 legumes Nutrition 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 101150039489 lysZ gene Proteins 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 229910000357 manganese(II) sulfate Inorganic materials 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 238000001254 matrix assisted laser desorption--ionisation time-of-flight mass spectrum Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000001840 matrix-assisted laser desorption--ionisation time-of-flight mass spectrometry Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 230000011987 methylation Effects 0.000 description 1
- 238000007069 methylation reaction Methods 0.000 description 1
- YACKEPLHDIMKIO-UHFFFAOYSA-N methylphosphonic acid Chemical compound CP(O)(O)=O YACKEPLHDIMKIO-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 229960004927 neomycin Drugs 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000002853 nucleic acid probe Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 229940014662 pantothenate Drugs 0.000 description 1
- 229940055726 pantothenic acid Drugs 0.000 description 1
- 235000019161 pantothenic acid Nutrition 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000021017 pears Nutrition 0.000 description 1
- LCLHHZYHLXDRQG-ZNKJPWOQSA-N pectic acid Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)O[C@H](C(O)=O)[C@@H]1OC1[C@H](O)[C@@H](O)[C@@H](OC2[C@@H]([C@@H](O)[C@@H](O)[C@H](O2)C(O)=O)O)[C@@H](C(O)=O)O1 LCLHHZYHLXDRQG-ZNKJPWOQSA-N 0.000 description 1
- 108020004410 pectinesterase Proteins 0.000 description 1
- 235000019319 peptone Nutrition 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000026731 phosphorylation Effects 0.000 description 1
- 238000006366 phosphorylation reaction Methods 0.000 description 1
- 102000020233 phosphotransferase Human genes 0.000 description 1
- 229940085127 phytase Drugs 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000656 polylysine Polymers 0.000 description 1
- 230000004481 post-translational protein modification Effects 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002797 proteolythic effect Effects 0.000 description 1
- 235000019423 pullulan Nutrition 0.000 description 1
- 101150054232 pyrG gene Proteins 0.000 description 1
- 235000008160 pyridoxine Nutrition 0.000 description 1
- 239000011677 pyridoxine Substances 0.000 description 1
- 238000000163 radioactive labelling Methods 0.000 description 1
- 235000021013 raspberries Nutrition 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000012465 retentate Substances 0.000 description 1
- 108010029529 rhamnogalacturonase A Proteins 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- CDAISMWEOUEBRE-UHFFFAOYSA-N scyllo-inosotol Natural products OC1C(O)C(O)C(O)C(O)C1O CDAISMWEOUEBRE-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004460 silage Substances 0.000 description 1
- 238000002741 site-directed mutagenesis Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007974 sodium acetate buffer Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 235000021012 strawberries Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000019157 thiamine Nutrition 0.000 description 1
- 239000011721 thiamine Substances 0.000 description 1
- KYMBYSLLVAOCFI-UHFFFAOYSA-N thiamine Chemical compound CC1=C(CCO)SCN1CC1=CN=C(C)N=C1N KYMBYSLLVAOCFI-UHFFFAOYSA-N 0.000 description 1
- DPJRMOMPQZCRJU-UHFFFAOYSA-M thiamine hydrochloride Chemical compound Cl.[Cl-].CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N DPJRMOMPQZCRJU-UHFFFAOYSA-M 0.000 description 1
- 235000019190 thiamine hydrochloride Nutrition 0.000 description 1
- 239000011747 thiamine hydrochloride Substances 0.000 description 1
- 239000011573 trace mineral Substances 0.000 description 1
- 235000013619 trace mineral Nutrition 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 108010087967 type I signal peptidase Proteins 0.000 description 1
- OUYCCCASQSFEME-UHFFFAOYSA-N tyrosine Natural products OC(=O)C(N)CC1=CC=C(O)C=C1 OUYCCCASQSFEME-UHFFFAOYSA-N 0.000 description 1
- 101150101900 uidA gene Proteins 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229940011671 vitamin b6 Drugs 0.000 description 1
- 101150077833 xlnA gene Proteins 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01171—Rhamnogalacturonan hydrolase (3.2.1.171), i.e. rhamnogalacturonase
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
- A23L2/84—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter using microorganisms or biological material, e.g. enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/06—Enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/20—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
- A23L29/206—Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
- A23L29/231—Pectin; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/24—Hydrolases (3) acting on glycosyl compounds (3.2)
- C12N9/2402—Hydrolases (3) acting on glycosyl compounds (3.2) hydrolysing O- and S- glycosyl compounds (3.2.1)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/34—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving hydrolase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01015—Polygalacturonase (3.2.1.15)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y302/00—Hydrolases acting on glycosyl compounds, i.e. glycosylases (3.2)
- C12Y302/01—Glycosidases, i.e. enzymes hydrolysing O- and S-glycosyl compounds (3.2.1)
- C12Y302/01099—Arabinan endo-1,5-alpha-L-arabinosidase (3.2.1.99)
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2333/00—Assays involving biological materials from specific organisms or of a specific nature
- G01N2333/90—Enzymes; Proenzymes
- G01N2333/914—Hydrolases (3)
- G01N2333/924—Hydrolases (3) acting on glycosyl compounds (3.2)
Definitions
- the present invention relates to a novel endo-xylogalacturonase (XGH) and homologues thereof It further relates to the use of the endo-xylogalacturonase in a method of processing plant or pectin-containing material to produce fruit juice and other plant extracts
- XGH endo-xylogalacturonase
- Enzyme preparations are often used during the processing of plant materials, for example in the steps of extraction and liquefaction of fruit and fruit juice and their filtration and clarification
- Commercial enzyme preparations contain a mixture of enzymes which degrade the pectin polymers which are a major component of plant cell walls
- Such enzymes include pectin lyases, polygalacturonases, pectin esterases, celluloses, xyloglucanases, galactanases and arabinanases
- Pectins occur in nature as constituents of higher plant cell walls They are found in primary cell wall lamella where they are embedded in between the cellulose fibrils
- the composition of pectin is variable among plant species and moreover dependent on the age and the maturity of the fruit Among the richer sources of pectins are lemons and oranges, which can represent up to 30% of polysaccha ⁇ des present
- pectin polymers are comprised of 'smooth' homogalacturonan regions and ramified 'hairy' regions
- the 'smooth' regions consist of a linear homogalacturonan backbone
- the 'hairy' regions of apples consists of three different subunits subunit I is xylogalacturonan (a galacturonan backbone heavily substituted with xylose), subunit II is a short section of a rhamnogalacturonan backbone, rich in relatively long arabinan, galactan and/or arabinogalactan side chains (the 'hairs'), and subunit III is a rhamnogalacturonan ohgomer, having a backbone consisting of an alternating sequence of rhamnose and galacturonic acid residues
- Many of the well-known pectinases used in industrial food processing degrade only the 'smooth' part of the pectin polymer leaving the 'hairy' regions intact
- exo-galacturonase 42kDa, SDS-PAGE
- This enzyme acts in an exo-fashion as it yields galacturonic acid or a disaccharide consisting of galacturonic acid and xylose
- the enzyme was purified to near homogeneity (Fractions HTP2 and Q2) and partially characterized
- this enzyme is not very specific for xylogalacturonan as it also acts on pectic acid
- this enzyme is not able to digest the xylogalacturonan backbone in a random fashion, and therefore to date there are no known enzymes possessing endo-xylogalacturonase activity
- the present invention has resulted from the isolation and characterization of a novel endo-xylogalacturonase and cDNA encoding it
- the endo-xylogalacturonase cDNA sequence is set out in SEQ ID No 1
- the amino acid sequence of the ORF from nucleotides 98 to 1315 is set out in SEQ ID No 2
- an (e g isolated and/or purified) polypeptide possessing endo-xylogalacturonase activity there is also provided a polypeptide comprising an endo-xylogalacturonase, such as a polypeptide comprising the sequence set out in SEQ LD No. 2, or a polypeptide substantially homologous thereto, or a fragment of the polypeptide of SEQ LD No. 2 having at least 5 amino acids.
- the polypeptide of the invention preferably has one or more of the following additional features, namely it:
- (3) has optimum activity at a temperature of from 50 to 70°C; and/or (4) has a molecular weight (deglycosylated) of from 40 to 50 kDa.
- Endo-xylogalacturonase activity is defined as the ability to cleave a galacturonic acid polymer (for example as found in pectin) which may be at least partially substituted with xylose at internal glycosidic bonds. The activity thus allows cleavage between adjacent galacturonan non-terminal units (where neither of such units is at the end of the polymer, which is in contrast to exo activity where the end unit would be cleaved). Preferably the cleavage occurs at a [galacturonic acid (1-4) galacturonic acid] linkage.
- the polypeptide does not cleave terminal xylose residues from xylose substituted galacturonic acid residues, for example a [galacturonic acid (3-1) xylose] linkage.
- the polypeptide may preferentially cleave in between two adjacent non-xylose substituted galacturonan units.
- the substrate polymer may be from 40 to 80%o (e.g. xylose) substituted.
- the two galacturonic acid residues between which the polypeptides of the invention cleave may both be (xylose) substituted, or only one may be (xylose) substituted or (preferably) neither may be (xylose) substituted.
- the two galacturonic acid residues may both be methylated, or one may be methylated, or (preferably) neither may be methylated.
- the polypeptide of the invention is obtainable from a microorganism which possesses a gene encoding an enzyme with endo-xylogalacturonase activity. More preferably the microorganism is a microbial organism, preferably fungal, and optimally a filamentous fungi.
- Preferred organisms are thus of the genera Aspergillus, Trichoderma, Penicillium, Acremonium, Fusarium, Humicola, Neurospora, Mucor, Scytallidium, Myceliophtora, Thielavia, Talaromyces, Thermomyces, Thermoascus, Chaetomium, Sporotrichum, Corynascus, Calcarisporiella o ⁇ Mycelia
- the organism is of the species from the Aspergillus niger group (as defined by Raper and Fennell, The Genus Aspergillus, The Williams & Wilkins Company, Baltimore, pp 293-344, 1965), specifically including but not limited to Aspergillus niger, Aspergillus awamori, Aspergillus tubigensis, Aspergillus aculeatus, Aspergillus foetidus, Aspergillus japonicus or Aspergillus ficuum
- the present invention provides an (e g isolated and/or purified) polynucleotide encoding a polypeptide of the first aspect of the invention
- the present invention provides a polynucleotide encoding an endo-xylogalacturonase, such an endo-xylogalacturonase whose amino acid sequence is set out in SEQ ID No 2
- the present invention further provides a polynucleotide encoding a polypeptide having substantial amino acid sequence homology to the amino acid sequence set out in SEQ ED No 2
- polynucleotides comprising a nucleotide sequence capable of hybridising to the nucleotide sequence set out in SEQ ID No 1 , or a fragment thereof,
- polynucleotides comprising a nucleotide sequence capable of hybridising to the complement of the nucleotide sequence set out in SEQ LD No 1 , or a fragment thereof, and/or
- polynucleotides comprising a polynucleotide sequence which is degenerate as a result of the genetic code to the polynucleotides defined in (a), (b) or (c)
- a polynucleotide of the invention also includes a polynucleotide which a encodes a polypeptide having endo-xylogalacturonase activity, which polynucleotide is
- the term "capable of hybridizing” means that the target polynucleotide of the invention can hybridize to the nucleic acid used as a probe (for example the nucleotide sequence set out in SEQ. LD No.1 , or a fragment thereof or the complement thereof) at a level significantly above background.
- the background hybridization may occur because of, for example, other polynucleotides, such as DNA, present in, for example a cDNA/genomic library being screened.
- background implies a level of signal generated by interaction between the probe and a non-specific polynucleotide member of the library which is less than 10 fold, preferably less than 100 fold, as intense as the specific interaction observed with the target polynucleotide.
- the intensity of interaction may be measured, for example, by radiolabelling the probe, e.g. with 32 P. Suitable conditions are described later.
- the polynucleotide of the invention is obtainable from the same organism as the polypeptide, such as a fungus, in particular a fungus of the genus Aspergillus.
- the present invention also provides a polynucleotide probe which comprises a fragment of at least 15 nucleotides of a polynucleotide of the invention as described above.
- the invention provides vectors comprising a polynucleotide of the invention, including cloning and expression vectors, and in a fourth aspect methods of growing, transforming or transfecting such vectors in a suitable host cell, for example under conditions in which expression of a polypeptide of, or encoded by a sequence of, the invention occurs.
- host cells comprising a polynucleotide or vector of the invention wherein the polynucleotide is heterologous to the genome of the host cell.
- heterologous to the genome of the host cell means that the polynucleotide does not naturally occur in the genome of the host cell.
- the host cell is a yeast cell, for example a yeast cell of the genus Kluyveromyces or Saccharomyces or a fungal cell, for example of the genus Aspergillus.
- the polypeptides of the invention which possess endo-xylogalacturonase activity may be used in a sixth aspect to treat plant material including plant pulp and plant extracts.
- compositions comprising a polypeptide of the invention.
- the composition may further comprise additional ingredients such as one or more enzymes, for example pectinases, including endo-arabinanase and rhamnogalacturonase, cellulases and/or xyloglucanases
- the present invention provides a method of degrading or modifying a plant cell wall which method comprises contacting the plant cell wall with a polypeptide or composition of the invention
- the invention also provides a method of processing a plant material which method comprises contacting the plant material with a polypeptide or composition of the invention to degrade or modify the pectin in the plant material
- a polypeptide or composition of the invention to degrade or modify the pectin in the plant material
- the plant material is a plant pulp or plant extract
- the degradation preferably comprises endo-type cleaving of xylogalacturonan subunits of a pectin component of the plant cell wall
- the plant material is preferably a fruit or vegetable pulp or fruit or vegetable extract, for example apple pulp or apple juice
- the present invention further provides a processed plant material obtainable by contacting a plant material with a polypeptide or composition of the invention
- the processed plant material is a fruit or vegetable juice, for example apple juice
- the invention provides a polynucleotide which a encodes a polypeptide that has endo-xylogalacturonase activity, which polynucleotide is
- polynucleotides of the invention also include variants of the coding sequence of
- SEQ ID No 1 which have endo-xylogalacturonase activity
- Variants may be formed by additions, substitutions and/or deletions Such variants may thus have the ability to cleave internally a galacturonic acid polymer
- a polynucleotide of the invention comprises a continuous sequence of nucleotides which is capable of hybridizing under selective conditions to the complement of the coding sequence of SEQ LD No 1
- a polynucleotide of the invention and complement of the coding sequence of SEQ LD No 1 can hybridize at a level significantly above background Background hybridization may occur, for example, because of other cDNA's present in a cDNA library
- the signal level generated by the interaction between a polynucleotide of the invention and the complement of the coding sequence of SEQ LD No 1 is typically at least 10-fold, preferably at least 100-fold, as intense as interactions between other polynucleotides and the coding sequence of SEQ LD No 1
- the intensity of interaction may be measured, for example, by radiolabellmg the probe, for example with 32 P
- Selective hybridization may typically be achieved using conditions of low stringency (for example, 0 03M sodium chloride and 0 03M sodium citrate at about 40 °C), medium stringency (for example,
- a preferred polynucleotide is capable of selectively hybridizing to complement the DNA sequence of SEQ LD No 1 will generally have at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, at least 95%, at least 98% or at least 99% sequence identity to the coding sequence of SEQ LD No 1 over a region of at least 20, preferably at least 30, for instance at least 40, at least 60, or preferably at least 100 continuous nucleotides or most preferably over the full length of SEQ ID No 1
- polynucleotides of the invention Any combination of the above mentioned degrees of sequence identity and minimum sizes may be used to define polynucleotides of the invention with the more stringent combinations (that is to say higher sequence identity over longer lengths) being preferred
- a polynucleotide which has least 90% sequence identity over 25, -o- preferably over 30 nucleotides is preferred, as is a polynucleotide which has at least 95% sequence identity over 40 nucleotides
- the coding sequence of SEQ LD No 1 may be modified by nucleotide substitutions, for example from 1, 2 or 3 to 10, 25, 50 or 100 substitutions
- the polynucleotide of SEQ ID No 1 may alternatively or additionally be modified by one or more insertions and/or deletions (such as the same number mentioned for substitutions) and/or by an extension to either or both ends
- the modified polynucleotide in general encodes a polypeptide which has endo-xylogalacturonase activity Degenerate substitution may be made and/or substitutions may be made which would result in a conservative amino acid substitution when the modified sequence is translated, for example as shown in the Table on page 12 in the section concerning polypeptides
- Polynucleotides of the invention may comprise DNA or RNA They may be single or double stranded They may also be polynucleotides which include within them synthetic or modified nucleotides
- a number of different types of modifications to polynucleotides are known in the art These include a methylphosphonate and phosphorothioate backbones, and addition of ac ⁇ dine or polylysine chains at the 3' and/or 5' ends of the molecule
- the polynucleotides described herein may be modified by any method available in the art It is to be understood that skilled persons may, using routine techniques, make nucleotide substitutions that do not affect the polypeptide sequence encoded by the polynucleotides of the invention to reflect the codon usage of any particular host organism in which the polypeptides of the invention are to be expressed
- Polynucleotides of the invention may be used as a primer, e g a PCR primer, a primer for an alternative amplification reaction, a probe e g labelled with a revealing label by conventional means using radioactive or non-radioactive labels, or the polynucleotides may be cloned into vectors
- Such primers, probes and other fragments will be at least 15, preferably at least 20, for example at least 25, 30 or 40 nucleotides in length There will typically be up to 40, 50, 60, 70, 100 or 150 nucleotides in length Probes and fragments can be longer than 150 nucleotides in length, for example up to 200, 300, 400, 500, 600, 700 nucleotides in length, or even up to a few nucleotides (such as 5 or 10 nucleotides) short of the coding sequence of SEQ ID No 1 Polynucleotides such as a DNA polynucleotide and primers according to the invention may be produced recombinantly, synthetically, or by any means available to those of skill in the art.
- polynucleotides may also be cloned by standard techniques.
- the polynucleotides are typically provided in isolated and/or purified form.
- primers will be produced by synthetic means, involving a step-wise manufacture of the desired nucleic acid sequence one nucleotide at a time. Techniques for accomplishing this using automated techniques are readily available in the art.
- Longer polynucleotides will generally be produced using recombinant means, for example using a PCR (polymerase chain reaction) cloning techniques. This will involve making a pair of primers (e.g. of about 15-30 nucleotides) to a region of the endo-xylogalacturonase gene which it is desired to clone, bringing the primers into contact with mRNA or cDNA obtained from a fungal, yeast, bacterial plant or prokaryotic cell, performing a polymerase chain reaction under conditions which bring about amplification of the desired region, isolating the amplified fragment (e.g. by purifying the reaction mixture on an agarose gel) and recovering the amplified DNA.
- the primers may be designed to contain suitable restriction enzyme recognition sites so that the amplified DNA can be cloned into a suitable cloning vector.
- Genomic clones corresponding to the cDNA of SEQ LD No. 1 or the endo-xylogalacturonase gene containing, for example, introns and promoter regions are within the invention also and may also be obtained in an analogous manner (e.g. recombinant means, PCR, cloning techniques), starting with genomic DNA from a fungal, yeast, bacterial plant or prokaryotic cell.
- Polynucleotides which do not have 100%) identity with SEQ LD No. 1 but fall within the scope of the invention can be obtained in a number of ways.
- variants of the endo-xylogalacturonase sequence described herein may be obtained for example by probing genomic DNA libraries made from a range of organisms, for example those discussed as sources of the polypeptides of the invention.
- other fungal, plant or prokaryotic homologues of endo-xylogalacturonase may be obtained and such homologues and fragments thereof in general will be capable of hybridising to SEQ ID No. 1.
- sequences may be obtained by probing cDNA libraries or genomic DNA libraries from other species, and probing such libraries with probes comprising all or part of SEQ ID. 1 under conditions of medium to high stringency (for example 0.03M sodium chloride and 0.03M sodium citrate at from 50 °C to 60 °C).
- Nucleic acid probes comprising all or part of SEQ ID No. 1 may be used to probe cDNA libraries from other species, such as those described as sources for the polypeptides of the invention .
- Species homologues may also be obtained using degenerate PCR which will use primers designed to target sequences within the variants and homologues encoding conserved amino acid sequences.
- the primers will contain one or more degenerate positions and will be used at stringency conditions lower than those used for cloning sequences with single sequence primers against known sequences.
- polynucleotides may be obtained by site directed mutagenesis of the endo-xylogalacturonase sequences or variants thereof. This may be useful where for example silent codon changes are required to sequences to optimise codon preferences for a particular host cell in which the polynucleotide sequences are being expressed. Other sequence changes may be desired in order to introduce restriction enzyme recognition sites, or to alter the property or function of the polypeptides encoded by the polynucleotides.
- the invention includes double stranded polynucleotides comprising a polynucleotide of the invention and its complement.
- Polynucleotides or primers of the invention may carry a revealing label.
- Suitable labels include radioisotopes such as 32 P or 35 S, enzyme labels, or other protein labels such as biotin and DIG-hapten. Such labels may be added to polynucleotides or primers of the invention and may be detected using by techniques known per se.
- the present invention also provides polynucleotides encoding the polypeptides of the invention described below. Since such polynucleotides will be useful as sequences for recombinant production of polypeptides of the invention, it is not necessary for them to be capable of hybridising to the sequence of SEQ ID No. 1, although this will generally be desirable. Otherwise, such polynucleotides may be labelled, used, and made as described above if desired. B Polypeptides
- a polypeptide of the invention comprises the amino acid sequence set out in SEQ LD No 2 or a substantially homologous sequence, or a fragment of either sequence and can have endo-xylogalacturonase activity
- SEQ LD No 2 the naturally occurring amino acid sequence shown in SEQ LD No 2 is preferred
- polypeptide of the invention may comprise a the polypeptide sequence of SEQ ID No 2, b a naturally occurring variant or species homologue thereof, or c a protein with at least 60, at least 70, at least 80, at least 90, at least 95, at least 98 or at least 99% sequence identity to (a) or (b)
- a variant will be one that occurs naturally, for example in fungal, bacteria, yeast or plant cells and which can function in a substantially similar manner to the protein of SEQ ID No 2, for example it has endo-xylogalacturonase activity
- a species homologue of the protein will be the equivalent protein which occurs naturally in another species and which can function as an endo-xylogalacturonase enzyme
- Variants and species homology can be obtained by following the procedures described herein for the production of the polypeptide of SEQ ID No 2 and performing such procedures on a suitable cell source, for example a bacterial, yeast, fungal or plant cell It will also be possible to use a probe as defined above to probe libraries made from yeast, bacterial, fungal or plant cells in order to obtain clones including the variants or species homology
- a suitable cell source for example a bacterial, yeast, fungal or plant cell
- a probe as defined above to probe libraries made from yeast, bacterial, fungal or plant cells in order to obtain clones including the variants or species homology
- the clones can be manipulated by conventional techniques to generate a polypeptide of the invention which can then be produced by recombinant or synthetic techniques known per se
- the polypeptide of the invention preferably has at least 60% sequence identity to the protein of SEQ LD No 2, more preferably at least 70%, at least 80%, at least 90%, at least 95%), at least 97% or at least 99% sequence identity thereto over a region of at least 20, preferably at least 30, for instance at least 40, at least 60, at least 100, 200 or 300 contiguous amino acids or over the full length of SEQ LD No 2
- sequence of the polypeptide of SEQ ID No 2 and of variants and species homologues can thus be modified to provide polypeptides of the invention
- Amino acid substitutions may be made, for example from 1, 2 or 3 to 10, 20 to 30 substitutions
- the same number of deletions and insertions may also be made.
- the modified polypeptide generally retains activity as an endo-xylogalacturonase.
- Polypeptides of the invention also include fragments of the above mentioned full length polypeptides and of variants thereof, including fragments of the sequence set out in SEQ ID No. 2. Such fragments typically retain activity as an endo-xylogalacturonase. Fragments may be at least 10, 15, 20, 30, 50, 100 or 200 amino acids long.
- Polypeptides of the invention may be in a substantially isolated form. It will be understood that the polypeptide may be mixed with carriers or diluents which will not interfere with the intended purpose of the polypeptide and still be regarded as substantially isolated.
- a polypeptide of the invention may also be in a substantially purified form, in which case it will generally comprise the polypeptide in a preparation in which more than 50%, e.g. more than 80%, 90%, 95%, 98% or 99% by weight of the polypeptide in the preparation is a polypeptide of the invention.
- Polypeptides of the invention may be chemically modified, for example post-transnationally modified. For example, they may be glycosylated (one or more times) or comprise one or more modified amino acid residues.
- They may be modified for example by the addition of histidine residues or a T7 tag to assist their identification or purification or by the addition of a signal sequence to promote their secretion from a cell, as discussed below.
- Polypeptides of the invention can if necessary be produced by synthetic means although usually they will be made recombinantly as described below.
- Particularly preferred polypeptides of the invention include a polypeptide consisting of amino acids 19 to 406 of the amino acid sequence set out in SED ID No 2 since this lacks the N-terminal signal peptide which consists of amino acids 1 to 18 of the amino acid sequence of SEQ ID No 2
- the polypeptides and fragments thereof may contain amino acid alterations as defined above
- yeast and fungal host cells are expected to provide for such post-translational modifications (e g proteolytic processing, myristilation, glycosylation, truncation, and tyrosine, serine or threonine phosphorylation) as may be needed to confer optimal biological activity on recombinant expression products of the invention
- post-translational modifications e g proteolytic processing, myristilation, glycosylation, truncation, and tyrosine, serine or threonine phosphorylation
- Polynucleotides of the invention can be incorporated into a recombinant replicable vector, for example a cloning or expression vector.
- the vector may be used to replicate the nucleic acid in a compatible host cell
- the invention provides a method of making polynucleotides of the invention by introducing a polynucleotide of the invention into a replicable vector, introducing the vector into a compatible host cell, and growing the host cell under conditions which bring about replication of the vector The vector may be recovered from the host cell Suitable host cells are described below in connection with expression vectors
- a polynucleotide of the invention in a vector is operably linked to a regulatory sequence which is capable of providing for the expression of the coding sequence by the host cell, i e the vector is an expression vector
- operably linked refers to a juxtaposition wherein the components described are in a relationship permitting them to function in their intended manner
- a regulatory sequence such as a promoter, enhancer or other expression regulation signal "operably linked" to a coding sequence is positioned in such a way that expression of the coding sequence is achieved under condition compatible with the control sequences
- the vectors may be for example, plasmid, virus or phage vectors provided with an origin of replication, optionally a promoter for the expression of the polynucleotide and optionally a regulation of the promoter
- the DNA sequence encoding the polypeptide is preferably introduced into a suitable host as part of an expression construct in which the DNA sequence is operably linked to expression signals which are capable of directing expression of the DNA sequence in the host cells.
- transformation procedures are available which are well known to the skilled person 34 .
- the expression construct can be used for transformation of the host as part of a vector carrying a selectable marker, or the expression construct is co-transformed as a separate molecule together with the vector carrying a selectable marker.
- the vectors may contain one or more selectable marker genes.
- Preferred selectable markers 3,4 include but are not limited to e.g. versatile marker genes that can be used for transformation of most filamentous fungi and yeasts such as acetamidase genes or cDNAs (the amdS genes or cDNAs from A.nidulans, A.oryzae, or A.niger), or genes providing resistance to antibiotics like G418, hygromycin, phleomycin or benomyl resistance (benA).
- more specific selection markers can be used such as auxotrophic markers which require corresponding mutant host strains: e.g.
- the selection marker is deleted from the transformed host cell after introduction of the expression construct in accordance with the methods described in EP-A-0 635 574, so as to obtain transformed host cells capable of producing the polypeptide which are free of selection marker genes.
- markers include ATP synthetase, subunit 9 (oliC), orotidine-5'-phosphate- decarboxylase (pvrA), the bacterial G418 resistance gene (this may also be used in yeast, but not in fungi), the ampicillin resistance gene (E. coli), the neomycin resistance gene (Bacillus) and the E. coli uidA gene, coding for ⁇ -glucuronidase (GUS).
- Vectors may be used in vitro, for example for the production of RNA or used to transfect or transform a host cell.
- the expression construct is preferably integrated in the genome of the host cell in order to obtain stable transformants.
- suitable episomal vector systems are available into which the expression construct can be incorporated for stable and high level expression, examples thereof include vectors derived from the 2 ⁇ and pKDl plasmids of Saccharomyces and Kluyveromyces, respectively.
- the expression constructs are integrated in the host cells genome, the constructs are either integrated at random loci in the genome, or at predetermined target loci using homologous recombination, in which case the target loci preferably comprise a highly expressed gene.
- a highly expressed gene is herein defined as a gene whose mRNA can make up at least 0.05%) (w/w) of the total cellular mRNA, e.g. under induced conditions, or alternatively, a gene whose gene product can make up at least 1% (w/w) of the total cellular protein, or, in case of a secreted gene product, can be secreted to a level of at least 0.1 g/1.
- suitable highly expressed genes is provided herein below.
- An expression construct for a given host cell will usually contain the following elements operably linked to each other in a consecutive order from the 5'-end to 3 '-end relative to the coding strand of the sequence encoding the polypeptide of the first aspect: (1) a promoter sequence capable of directing transcription of the DNA sequence encoding the polypeptide in the given host cell, (2) optionally, a signal sequence capable of directing secretion of the polypeptide from the given host cell into the culture medium, (3) the DNA sequence encoding a mature and preferably active form of the polypeptide, and preferably also (4) a transcription termination region (terminator) capable of terminating transcription downstream of the DNA sequence encoding the polypeptide.
- a promoter sequence capable of directing transcription of the DNA sequence encoding the polypeptide in the given host cell
- a signal sequence capable of directing secretion of the polypeptide from the given host cell into the culture medium
- the DNA sequence encoding a mature and preferably active form of the polypeptide and preferably also (4)
- Enhanced expression of the polynucleotide encoding the polypeptide of the invention may also be achieved by the selection of heterologous regulatory regions, e.g. promoter, secretion leader and terminator regions, which serve to increase expression and, if desired, secretion levels of the protein of interest from the chosen expression host and/or to provide for the inducible control of the expression of the polypeptide of the invention.
- heterologous regulatory regions e.g. promoter, secretion leader and terminator regions
- promoters may be used to direct expression of the polypeptide of the invention.
- the promoter may be selected for its efficiency in directing the expression of the polypeptide of the invention in the desired expression host.
- promoters 3,4 can be used that are capable of directing transcription in the host cells of the invention.
- the promoter sequence is derived from a highly expressed gene as previously defined.
- preferred highly expressed genes from which promoters are preferably derived and/or which are comprised in preferred predetermined target loci for integration of expression constructs include but are not limited to genes encoding glycolytic enzymes such as triose-phosphate isomerases (TPI), glyceraldehyde-phosphate dehydrogenases (GAPDH), phosphoglycerate kinases (PGK), pyruvate kinases (PYK), alcohol dehydrogenases (ADH), as well as genes encoding amylases, glucoamylases, xylanases, cellobiohydrolases, ⁇ -galactosidases, alcohol (methanol) oxidases, elongation factors and ribosomal proteins.
- TPI triose-phosphate isomerases
- suitable highly expressed genes include e.g. the LAC4 gene from Kluyveromyces sp., the methanol oxidase genes (A OX and MOX) from Hansenula and Pichia, respectively, the glucoamylase (glaA) genes from A.niger and A.awamori, the A.oryzae TAKA-amylase gene, the A.nidulans gpdA gene and the T.reesei cellobiohydrolase genes.
- LAC4 gene from Kluyveromyces sp.
- a OX and MOX methanol oxidase genes
- glaA glucoamylase
- strong constitutive and/or inducible promoters which are preferred for use in fungal expression hosts are those which are obtainable from the fungal genes for xylanase (xlnA), phytase, ATP-synthetase, subunit 9 (oliC), triose phosphate isomerase (fpi), alcohol dehydrogenase (AdhA), ⁇ -amylase (amy), amyloglucosidase (AG - from the glaA gene), acetamidase (amdS) and glyceraldehyde-3 -phosphate dehydrogenase (gpd) promoters.
- xylanase xylanase
- phytase ATP-synthetase
- oliC subunit 9
- fpi triose phosphate isomerase
- AdhA alcohol dehydrogenase
- ⁇ -amylase ⁇ -amy
- strong yeast promoters are those obtainable from the genes for alcohol dehydrogenase, lactase, 3 -phosphoglycerate kinase and triosephosphate isomerase.
- strong bacterial promoters are the ⁇ -amylase and SP02 promoters as well as promoters from extracellular protease genes.
- the polypeptide is produced as a secreted protein in which case the DNA sequence encoding a mature form of the polypeptide in the expression construct is operably linked to a DNA sequence encoding a signal sequence.
- the signal sequence is native (homologous) to the DNA sequence encoding the polypeptide.
- the signal sequence is foreign (heterologous) to the DNA sequence encoding the polypeptide, in which case the signal sequence is preferably endogenous to the host cell in which the DNA sequence is expressed.
- suitable signal sequences for yeast host cells are the signal sequences derived from yeast ⁇ -factor genes.
- a suitable signal sequence for filamentous fungal host cells is e.g.
- a signal sequence derived from a filamentous fungal (gluco)amylase gene e.g. the A.niger glaA gene. This may be used in combination with the amyloglucosidase (AG) promoter itself, as well as in combination with other promoters.
- AG amyloglucosidase
- Hybrid signal sequences may also be used with the context of the present invention.
- Preferred heterologous secretion leader sequences are those originating from the fungal amyloglucosidase (AG) gene (glaA - both 18 and 24 amino acid versions e.g. from Aspergillus), the ⁇ -factor gene (yeasts e.g. Saccharomyces and Kluyveromyces) or the ⁇ -amylase gene (Bacillus).
- AG fungal amyloglucosidase
- the expression construct Downstream of the DNA sequence encoding the polypeptide, the expression construct preferably contains a 3' untranslated region containing one or more transcription termination sites, also referred to as a terminator.
- the origin of the terminator is less critical.
- the terminator can e.g. be native to the DNA sequence encoding the polypeptide.
- a yeast terminator is used in yeast host cells and a filamentous fungal terminator is used in filamentous fungal host cells. More preferably, the terminator is endo- genus to the host cell in which the DNA sequence encoding the polypeptide is expressed.
- the invention provides a process for preparing polypeptides according to the invention which comprises cultivating a host cell transformed or transfected with an expression vector as described above under conditions to provide for expression by the vector of a coding sequence encoding the polypeptides, and recovering the expressed polypeptides.
- a further aspect of the invention thus provides host cells transformed or transfected with or comprising a polynucleotide or vector of the invention.
- the polynucleotide is carried in a vector for the replication and expression of the polynucleotide.
- the cells will be chosen to be compatible with the said vector and may for example be prokaryotic (for example bacterial), fungal, yeast or plant cells.
- eukaryotic hosts such as yeasts or fungi may be preferred.
- yeast cells are preferred over fungal cells because they are easier to manipulate.
- some proteins are either poorly secreted from yeasts, or in some cases are not processed properly (e.g. hyperglycosylation in yeast).
- a fungal host organism should be selected.
- a heterologous host may also be chosen wherein the polypeptide of the invention is produced in a form which is substantially free from other pectin-degrading enzymes. This may be achieved by choosing a host which does not normally produce such enzymes such as Kluyveromyces lactis.
- the invention encompasses processes for the production of the polypeptide of the invention by means of recombinant expression of a DNA sequence encoding the polypeptide.
- the DNA sequence of the invention can be used for gene amplification and/or exchange of expression signals, such as promoters, secretion signal sequences, in order to allow economic production of the polypeptide in a suitable homologous or heterologous host cell.
- a homologous host cell is herein defined as a host cell which is of the same species or which is a variant within the same species as the species from which the DNA sequence is derived.
- Suitable host cells are preferably prokaryotic microorganisms such as bacteria, or more preferably eukaryotic organisms, for example fungi, such as yeasts or filamentous fungi, or plant cells.
- Bacteria from the genus Bacillus are very suitable as heterologous hosts because of their capability to secrete proteins into the culture medium.
- Other bacteria suitable as hosts are those from the genera Streptomyces and Pseudomonas.
- a preferred yeast host cell for the expression of the DNA sequence encoding the polypeptide is of the genera Saccharomyces, Kluyveromyces, Hansenula, Pichia, Yarrowia, and Schizosaccharomyces . More preferably a yeast host cell is selected from the group consisting of the species Saccharomyces cerevisiae, Kluyveromyces lactis (also known as Kluyveromyces marxianus var. lactis), Hansenula polymorpha, Pichia pastor is, Yarrowia lipolytica,md Schizosaccharomyces pombe .
- filamentous fungal host cells are selected from the group consisting of the genera. Aspergillus, Trichoderma, Fusarium, Penicillium, Acremonium, Neurospora, Thermoascus, Myceliophtora, Sporotrichum, Thielavia, and Talaromyces.
- a filamentous fungal host cell is of the species Aspergillus oyzae, Aspergillus sojae, Aspergillus nidulans, species from the Aspergillus niger Group (as defined by Raper and Fennell, The Genus Aspergillus, The Williams & Wilkins Company, Baltimore, pp 293-344, 1965).
- Aspergillus niger include but are not limited to Aspergillus niger, Aspergillus awamori, Aspergillus tubigensis, Aspergillus aculeatus, Aspergillus foetidus, Aspergillus nidulans, Aspergillus japonicus, Aspergillus oryzae and Aspergillus ficuiim, and further consisting of the species Trichoderma reesei, Fusarium graminearum, Penicillium chrysogenum, Acremonium alabamense, Neurospora crassa, Myceliophtora thermophilum, Sporotrichum cellulophilum, and Thielavia terrestris.
- Trichoderma reesei Fusarium graminearum
- Penicillium chrysogenum Acremonium alabamense
- Neurospora crassa Myceliophtora thermophilum
- fungi such as Aspergillus species (described in EP-A-184,438 and EP-A-284,603) and Trichoderma species; bacteria such as Bacillus species (described in EP-A-134,048 and EP-A-253,455), e.g. Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens, Pseudomonas species; and yeasts such as Kluyveromyces species (described in EP-A-096,430 e.g. Kluyveronmyces lactic and EP-A-301,670) and Saccharomyces species, e.g. Saccharomyces cerevisiae.
- fungi such as Aspergillus species (described in EP-A-184,438 and EP-A-284,603) and Trichoderma species
- bacteria such as Bacillus species (described in EP-A-134,048 and EP-A-253,455), e.g. Bac
- the production of the polypeptide of the invention can be effected by the culturing of microbial expression hosts, which have been transformed with one or more polynucleotides of the present invention, in a conventional nutrient fermentation medium.
- the recombinant host cells according to the invention may be cultured using procedures known in the art. For each combination of a promoter and a host cell, culture condition are available which are conducive to the expression the DNA sequence encoding the polypeptide. After reaching the desired cell density or titre of the polypeptide the culture is stopped and the polypeptide is recovered using known procedures.
- the fermentation medium can comprise a known culture medium containing a carbon source (e.g.
- glucose, maltose, molasses, etc. a nitrogen source (e.g. ammonium sulphate, ammonium nitrate, ammonium chloride, etc.), an organic nitrogen source (e.g. yeast extract, malt extract, peptone, etc.) and inorganic nutrient sources (e.g. phosphate, magnesium, potassium, zinc, iron, etc.).
- an inducer e.g. apple MHR, pectin or xylogalacturonan
- an inducer e.g. apple MHR, pectin or xylogalacturonan
- the selection of the appropriate medium may be based on the choice of expression host and/or based on the regulatory requirements of the expression construct. Such media are well-known to those skilled in the art.
- the medium may, if desired, contain additional components favouring the transformed expression hosts over other potentially contaminating microorganisms.
- the fermentation can be performed over a period of 0.5-20 days in a batch, continuous or fed-batch process suitably at a temperature in the range of between 0 and 45°C and, for example, a pH between 2 and 10.
- Preferred fermentation conditions are a temperature in the range of between 20 and 37°C and/or a pH between 3 and 9. The appropriate conditions are usually selected based on the choice of the expression host and the protein to be expressed.
- the cells can be removed from the fermentation broth by means of centrifugation or filtration. After removal of the cells, the polypeptide of the invention may then be recovered and, if desired, purified and isolated by conventional means.
- Plant and pectin-containing materials include plant pulp, parts of plants and plant extracts.
- an extract from a plant material is any substance which can be derived from plant material by extraction (mechanical and/or chemical), processing or by other separation techniques.
- the extract may be juice, nectar, base, or concentrates made thereof.
- the plant material may comprise or be derived from vegetables, e.g., carrots, celery, onions, legumes or leguminous plants (soy, soybean, peas) or fruit, e.g., pome or seed fruit (apples, pears, quince etc.), grapes, tomatoes, citrus (orange, lemon, lime, mandarin), melons, prunes, cherries, black currants, redcurrants, raspberries, strawberries, cranberries, pineapple and other tropical fruits, trees and parts thereof (e.g. pollen, from pine trees).
- apples and apple juice are especially preferred.
- polypeptides of the invention can thus be used to treat plant material including plant pulp and plant extracts.
- they may be used to treat apple pulp and/or raw juice during the production of apple juice. They may also be used to treat liquid or solid foodstuffs or edible foodstuff ingredients.
- the polypeptide of the invention is combined with suitable (solid or liquid) carriers or diluents including buffers to produce a composition or enzyme preparation.
- the polypeptide is typically stably formulated either in liquid or dry form.
- the product is made as a composition which will optionally include, for example, a stabilising buffer and/or preservative.
- the compositions may also include other enzymes capable of digesting plant material or pectin, for example other pectinases such as an endo-arabinanase, rhamnogalacturonases, and/or polygalacturonase. For certain applications, immobilization of the enzyme on a solid matrix or incorporation on or into solid carrier particles may be preferred.
- the composition may also include a variety of other plant material-degrading enzymes, for example cellulases and other pectinases.
- the polypeptides and compositions of the invention may therefore be used in a method of processing plant material to degrade or modify the pectin constituents of the cell walls of the plant material 2 .
- the polypeptides of the invention are used as a composition/ enzyme preparation as described above.
- the composition will generally be added to plant pulp obtainable by, for example mechanical processing such as crushing or milling plant material. Incubation of the composition with the plant will typically be carried out for at time of from 10 minutes to 5 hours, such as 30 minutes to 2 hours, preferably for about 1 hour.
- the processing temperature is preferably 10-55°C, e.g. from 15 to 25° C, optimally about 20°C and one can use 10-300g, preferably 30-70g, optimally about 50g of enzyme per ton of material to be treated. All the enzyme(s) or their compositions used may be added sequentially or at the same time to the plant pulp.
- the plant material may first be macerated (e.g. to a puree) or liquefied.
- processing parameters such as the yield of the extraction, viscosity of the extract and/or quality of the extract can be improved.
- a polypeptide of the invention may be added to the raw juice obtained from pressing or liquefying the plant pulp. Treatment of the raw juice will be carried out in a similar manner to the plant pulp in respect of dosage, temperature and holding time. Again, other enzymes such as those discussed previously may be included. Typical incubation conditions are as described in the previous paragraph. Once the raw juice has been incubated with the polypeptides of the invention, the juice is then centrifuged or (ultra) filtered to produce the final product.
- composition containing a polypeptide of the invention may also be used during the preparation of fruit or vegetable purees.
- the end product of these processes is typically heat-treated at 85°C for a time of from 1 minute to 1 hour, under conditions to partially or fully inactivate the polypeptides of the invention.
- polypeptides of the invention may also be used to prepare pectins with modified characteristics, e.g. modified gelation capacities for specific applications.
- the polypeptides of the invention may also be added to animal feeds rich in pectin or xylogalacturonan, e.g. soy-containing food, to improve the breakdown of the plant cell wall leading to improved utilisation of the plant nutrients by the animal.
- the polypeptides of the invention may be added to the feed or silage if pre-soaking or wet diets are preferred.
- the polypeptides of the invention may continue to degrade xylogalacturonans in the feed in vivo.
- Fungal derived polypeptides of the invention in particular generally have lower pH optima and are capable of releasing important nutrients in such acidic environments as the stomach of an animal.
- the invention thus also contemplates (e.g. animal) feeds or foodstuffs comprising one or more polypeptides of the invention.
- the polypeptides of the invention may also be used during the production of milk substitutes (or replacers) from soy bean. These milk substitutes can be consumed by both humans and animals. A typical problem during the preparation of these milk substitutes is the high viscosity of the soy bean slurry, resulting in the need for an undesirable dilution of the slurry to a concentration of dry solids of 10 to 15%.
- An enzyme preparation containing a polypeptide of the invention can be added to, or during the processing of, the slurry, enabling processing at a higher concentration (typically 40 to 50%) dry solids.
- the enzyme may also be used in the preparation of savoury product(s), e.g. from soy bean.
- the novel assays and substrates described herein have allowed identification and confirmation of endo-xylogalacturonase activity. However, these assays can be used to detect other pectin degrading enzymes, whether or not they have endo-xylogalacturonase activity.
- the substrate that can be used for this assay can comprise gum tragacanth which has been treated with a strong acid. A preferred acid is trifluoroactetic acid (TFA).
- TFA trifluoroactetic acid
- the gum tragacanth may be optionally saponified and/or it may have been treated with an alkali, for example an alkali metal hydroxide, for example NaOH.
- Another aspect of the invention relates to an assay for identifying or detecting a polypeptide which is able to degrade pectin.
- the activity may be an endo-xylogalacturonase or, may be pectin lyase, polygalacturonase, esterase, cellulase, xyloglucanase, galactonase, arabinanase or rahamnogalacturonase
- the assay may comprise a providing, as a substrate for a candidate compound (usually a polypeptide) the substrate described in the previous paragraph, and b contacting the substrate with the candidate compound, and detecting whether any reducing carbohydrates are produced
- the amount of these reducing carbohydrates can be measured If necessary, they can then be compared to the amount of the carbohydrates produced in a control experiment, in the absence of candidate compound
- the measurement may involve a BCA assay This may comprise measuring the amount of Cu(II) reduced to Cu(I) by the reducing carbohydrates present This may be by contact with bicinchonimc acid (BCA), and determining the amount of BCA-Cu(I) complex formed
- Figure 1 is a diagram of the hypothetical structure of the prevailing population of apple MHR (modified hairy region) having the highest molecular weight (subunit I is xylogalacturonan, subunit II is the backbone rich in arabinan side chains, subunit in is rhamnogalacturonase oligomers
- subunit I is xylogalacturonan
- subunit II is the backbone rich in arabinan side chains
- subunit in rhamnogalacturonase oligomers
- the distribution of acetyl groups is not presented but major parts are thought to be located within subunit III
- GalA galacturonic acid
- rham rhamnose
- gal galactose
- xyl xylose
- ara arabinose
- Figure 2 is a map of the vector pCVlacK according to the invention (construction described in Example 1)
- Figure 3 is a graph illustrating an HPAEC of xylogalacturonan after degradation by xylogalacturonase (a polypeptide of the invention)
- Figure 4 is a graph illustrating an HP SEC of xylogalacturonan before and after degradation by a xylogalacturonase
- Figure 5 is a graph illustrating a Maldi-ToF mass spectrum of the products of complete degradation of xylogalacturonan by a xylogalacturonase
- Figures 6A-G are graphs of HPSEC elutions showing degradation of MHR-S by endo-arabinanase, rhamnogalacturonase and xylogalacturonase, separately and in combination,
- Figures 7 and 8 are graphs of a HPSEC and HPAEC, respectively, elution patterns showing degradation of soy pectin by xylogalacturonase, and
- Starting vector pGBHSA20 contains the promoter and terminator sequence of the lactase gene (lac4) o K lactis, a G418 selection marker and the E coli plasmid pTZ18r for propagation in this host
- lac4 lactase gene
- the K lactis KARSCEN cassette 17 was cloned in a unique Smal site of this vector
- the resulting vector was named pCVlacK ( Figure 2)
- the unique Hindlll and Xhol sites flanking the lac4 promoter and terminator, respectively, can be used as cloning sites for cDNA synthesized from Aspergillus tubigensis poly(A) RNA
- Example 1 Isolation of polyfA RNA and cDNA synthesis
- Aspergillus tubigensis conidia were inoculated in triplicate at a density of 10 6 spores/ml in 300 ml of medium containing (per liter) 6 g NaNO 3 , 0 5 g KC1, 1 5 g KH 2 PO 4 , 0 5 g MgSO 4 (pH6 5), 1 ml lOOOx Timberlake spore elements (per ml, 50mg EDTA, 22mg FeSO 4 7H 2 O, 5 mg MnCl 2 2H 2 O, 22mg ZnSO 4 7H 2 O, 1 6mg CuSO 4 5H 2 O, 1 7mg CoCl 2 6H 2 O, 1 5mg Na 2 MoO 4 2H 2 O, 1 lmg H BO 3 , adjusted to pH 6 5) and 10ml lOOx Timberlake vitamins (per ml, 0 2mg thiamine-HCl, 0 2mg ⁇ boflavin 0 2mg nic
- RNAzol method (Cinna/Biotecx). Poly (A) RNA was isolated using QiagenTM oligotex columns (Westburg). Equal amounts of poly(A) RNA at time-points of 10, 16 and 24 hours were pooled.
- cDNA was synthesized using the ZAP-cDNA synthesis kit (StratageneTM) with the following modifications: the first-strand synthesis was done with Superscript LI reverse transcriptase (GibcoBRL).
- the cDNA pool was size separated using a Sephacryl S-500 column.
- the first fraction eluted from the column did not contain any cDNA but the second and third fraction contained the largest sized cDNA. Subsequent fractions were supposed to contain relatively higher amounts of non-full length cDNA and were of no use for construction of the library.
- the cDNA of fractions 2 and 3 was ligated into theHwdi ⁇ and Xhol sites of expression vector pCVlacK (see Figure 2) using the Clontech Ligation ExpressTM kit. Each ligation mixture was transformed in two batches to electrocompetent E. coli XL-Blue MRF'cells. The four transformation suspensions were plated onto 32 agar plates (LB + 50 ⁇ g/ml ampicillin).
- Example 1.3 Transformation of the expression library into K. lactis
- K lactis strain CBS 2359 grown in YPD (10 g/1 yeast extract, 20 g/1 Bacto-peptone, 20 g/1 glucose) at 30°C was diluted 3000-, 600-, 300- and 100-fold in 150 ml of fresh YPD and incubated for 6 hours at 30°C, 160 rpm in a rotary shaker.
- the culture with an optical density of 0 7-1 0 was used to prepare electrocompetent cells 6
- Electrocompetent cells were transformed with 1 ⁇ g pooled DNA of the E. coli library
- Electroporation was performed using a Biorad GenepulserTM with settings at 1 4 kV, 200 Ohm and 25 ⁇ F Transformants were selected on double layer YPD plates (YPD with 20 g/1 Bacto-agar) the bottom layer contained 50 ⁇ g/ml G418, the top layer was non-selective 660 ⁇ L of transformation mix was plated onto 80 double layer plates Aliquots of 1 5 and 15 ⁇ L were pipetted onto the plates About 10,000 transformants were obtained
- Example 2 Preparation of MHR-S from apples Modified hairy regions (MHR) from apples were isolated as a filter retentate after treatment of apples with pectinase, and subsequently the MHR was saponified resulting in MHR-S 8
- Example 2 3 Characterization of xylogalacturonan To determine the sugar composition both from the original gum tragacanth as well as of the xylogalacturonan, samples were hydrolyzed with 1 M H 2 SO 4 (100°C, 3 h) 8 and neutral sugars were converted to their alditol acetates in order to quantify the individual sugars by Gas Chromatography (GC). The uronic acid content of the hydrolysate was determined colorimetrically using m-hydroxybiphenyl 8 . The sugar composition in mol% of the original gum tragacanth (GT) in comparison with the xylogalacturonan (XG) is shown in Table 1 below.
- the degree of acetyl and methyl esterification of gum tragacanth was estimated by High Pressure Liquid Chromatography (HPLC) 7 .
- the degree of methylation and acetylation of gum tragacanth is approximately 75% and 20%, respectively (calculated as mol methyl or actyl groups per mol of GalA). Saponification of the gum removed all methyl and acetyl groups.
- transformants were used to inoculate a new set of 35 multi-well plates containing 200 ⁇ L of the same medium with 80 ng/mL G418 with a replica plater
- the K. lactis transformants were grown for two days at 30°C in a stove
- the cells were precipitated by centrifugation at 3000 rpm in a HermleTM zk380 centrifuge
- the BCA assay is based on the reduction of Cu(II) to Cu(f) by reducing carbohydrate mono- and oligomers
- a complex is formed of bicinchoninic acid (BCA) and Cu(I) This complex produces an intense purple colour, which can be measured spectrophotometrically This colour increases with an increasing reducing carbohydrate concentration
- the method used in this invention is a modification of a known method 9 but was used for screening purposes
- Figure 9 shows the analysis of multiple alignments of Xgh to the PG's and to the RHG-A's
- the multiple alignment shows four domains of conserved amino acids, which were first described for polygalacturonases of plant, fungal and bacterial origin 15
- NXD, DD, HG and RXK (shaded in Figure 9, where X represents a variable amino acid)
- Essential amino acids thought to be involved in the hydrolysis reaction are one of the three aspartic acid residues of domain I and LI and the histidine of domain III
- These domains are fully conserved in XghA
- the fourth domain contains amino acids that are involved in substrate binding
- the argimne residue of this domain is a glycine residue in XghA
- the domains are less conserved in the RHG sequences, as only two of the three aspartic acid residues are conserved and the histidine is replaced by g
- Example 4 Southern blot analysis The copy number of theXghA gene was determined by southern blot analysis of genomic DNA of A tubigensis digested with several enzymes (results not shown) Hybridization under stringent (65 °C and 0.2 x SSC) and less stringent conditions (60°C and 1 x SSC) with a 1.0 kb Hin dill fragment of xghA clearly showed single hybridizing fragments. This demonstrates that the xghA gene is present as a single copy in the A. tubigensis genome.
- K lactis transformants expressing the cDNA of endo-xylogalacturonase were transferred from multiwell plate glycerol stocks to reagent tubes: 10 ⁇ L glycerol stock was added to 1-2 mL of medium I (see Example 3.1) with 80 ng/mL of G418. These cultures were grown at 30°C in a rotary incubator at 200 rpm for two days and used to inoculate Erlenmeyer flasks containing 20 mL of this same medium supplemented with antibiotic. For larger scale production of the enzyme, these cultures were used to inoculate 500 mL of the same medium supplemented with antibiotic in 1 L Erlenmeyer flasks. Cells were grown at 30°C in a rotary incubator at 200 rpm for two days. Cultures were centrifuged to precipitate cells, the supernatant was used for the purification.
- the crude enzyme preparation (350 mL) was preconcentrated on a HitrapTM Q ion-exchange column (Pharmacia Biotech, Sweden) with a flow rate of 0.3 mL/min. Elution was performed on a FPLC system (Pharmacia Biotech, Sweden) with a salt gradient using a 20 mM piperazine (pH 5.0) starting buffer (buffer A) and a 0.5 M NaCl in 20 mM piperazine (pH 5.0) elution buffer (buffer B). The following gradient was used: to 10% B in 1 minute, to 35% B in 19 minutes, to 100% B in 2 minutes and 100% B for three more minutes. Activity was checked as described in Example 3 and active fractions were pooled.
- the purified enzyme was preincubated without substrate for one hour at a pH range from 2.5 to 8 in Mcllvaine buffers. Afterwards the enzyme was incubated with substrate for two hours and the increase in reducing sugars was determined as described in Example 3. The enzyme was stable over a pH range of 3 to 6.
- the purified enzyme was incubated with substrate for two hours at a pH range from 2.5 to 8 or a temperature range from 20 to 80 °C. After this, the increase in reducing sugars was determined as described in Example 3.
- the enzyme has an optimum activity at a temperature of 60°C and at a pH of 3.0.
- the enzyme shows more than 50% of its activity in the pH range of 2.5 to 5.0.
- the activity at pH 2.5 was still 90% of the maximum value at pH 3.0. Values lower than pH 2.5 were not measured.
- EXAMPLE 7 Mode of action of the xylogalacturonase
- HPAEC high performance anion exchange chromatography
- HPSEC high performance size exclusion chromatography
- HPSEC was performed using three columns in series: Bio-Gel TSK 40 (300 x 7.5 mm, from Biorad), Bio-Gel TSK 30 XL (300 x 7.5 mm, from Biorad) and TSKGel G 2500 P XL (300 x 7.8 mm, from TosoHaas).
- Figure 4 shows that the high molecular weight fraction of xylogalacturonan (left in the picture) was rapidly degraded (the top line (B) represents the polymer before degradation and the bottom line (A) represents the polymer after degradation).
- Figure 6B shows that xylogalacturonase was able to degrade MHR-S a small shift to lower molecular weight material can be observed Also the enzymes endo-arabinanase ( Figure 6A) and rhamnogalacturonase (Figure 6C) caused some shift in molecular weight However, somewhat better results are obtained by combining two different enzymes in one incubation ( Figures 6D - endo-arabinanase and xylogalacturonase sequentially, 6E - endo-arabinanase and xylogalacturonase combined and 6F -endo-arabinanase and endo-rhamnogalacturonase sequentially) The difference between Figures 6D and 6E is striking combined addition of endo-arabinanase and xylogalacturonase was much more effective than with sequential addition Almost complete degradation of the high molecular weight material was possible when the three enzymes were
- a solution of 0.5% in 50 mM acetate buffer pH 4.0 was incubated with a combination of three enzymes: endo-arabinanase, rhamnogalacturonase and xylogalacturonase (ea/rg/xgh), a combination of two enzymes: endo-arabinanase and rhamnoglacturonase (ea rg), and with xylogalacturonase (xgh) separately for 17 hours at 30 °C.
- the solutions were filtrated using an Amicon device equipped with a 30 kD filter at a pressure of 2 bars. The increase in weight of the filtrate was followed over time. The results are shown in Figure 5.
- Figure 7 shows the changes in the molecular weight distribution as measured by HPSEC: in the xylogalacturonase-treated material (curve b) the peak at approximately 20 min, representing the high molecular weight material, decreases to 70% of the value of the starting material (curve a).
- Figure 8 the results of the HPAEC analysis is shown. Comparing the enzyme- treated material (curve b) with the blank (curve a) it can be seen that xylogalacturonase causes the release of the characteristic xylosyl galacturonic acid dimer (marked with an X) and of other unidentified oligomers (peaks to the right side of X), comparable with the peaks appearing in Figure 6 of Example 7.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Molecular Biology (AREA)
- Nutrition Science (AREA)
- Biotechnology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Dispersion Chemistry (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biophysics (AREA)
- Medicinal Chemistry (AREA)
- Immunology (AREA)
- Enzymes And Modification Thereof (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9907831-7A BR9907831A (pt) | 1998-02-10 | 1999-02-09 | Endo-xilogalacturonase |
AU27247/99A AU2724799A (en) | 1998-02-10 | 1999-02-09 | Novel endo-xylogalacturonase |
EP99907529A EP1054978A2 (fr) | 1998-02-10 | 1999-02-09 | Nouvelle endo-xylogalacturonase |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98300952 | 1998-02-10 | ||
EP98300952.3 | 1998-02-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999041386A2 true WO1999041386A2 (fr) | 1999-08-19 |
WO1999041386A3 WO1999041386A3 (fr) | 2000-01-20 |
Family
ID=8234656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/000860 WO1999041386A2 (fr) | 1998-02-10 | 1999-02-09 | Nouvelle endo-xylogalacturonase |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1054978A2 (fr) |
CN (1) | CN1294633A (fr) |
AU (1) | AU2724799A (fr) |
BR (1) | BR9907831A (fr) |
WO (1) | WO1999041386A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014170498A1 (fr) | 2013-04-19 | 2014-10-23 | Danmarks Tekniske Universitet | Production enzymatique de polysaccharides à partir de gomme adragante |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102762104B (zh) * | 2010-02-26 | 2014-08-06 | 诺维信公司 | 用于制备果干的酶预处理 |
EP2538793A4 (fr) * | 2010-02-26 | 2014-07-23 | Novozymes As | Prétraitement enzymatique pour obtenir des fruits séchés |
CN107916268B (zh) * | 2017-09-30 | 2021-10-22 | 武汉轻工大学 | 聚半乳糖醛酸裂解酶基因、重组表达载体、菌株、聚半乳糖醛酸裂解酶及其制备方法 |
CN114292832A (zh) * | 2022-01-27 | 2022-04-08 | 大连海洋大学 | 一种嗜热耐高温多聚半乳糖醛酸酶MlPG28B、编码基因及制备方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0421919A2 (fr) * | 1989-09-02 | 1991-04-10 | Ciba-Geigy Ag | Système d'expression fongique encodant la polygalacturonase |
WO1994014966A1 (fr) * | 1992-12-24 | 1994-07-07 | Gist-Brocades N.V. | CLONAGE ET EXPRESSION DU GENE DE L'EXO-POLYGALACTURONASE DE L'$i(ASPERGILLUS) |
WO1995034223A1 (fr) * | 1994-06-15 | 1995-12-21 | Novo Nordisk A/S | Stabilite des extraits troubles |
-
1999
- 1999-02-09 AU AU27247/99A patent/AU2724799A/en not_active Abandoned
- 1999-02-09 CN CN99804431A patent/CN1294633A/zh active Pending
- 1999-02-09 EP EP99907529A patent/EP1054978A2/fr not_active Withdrawn
- 1999-02-09 WO PCT/EP1999/000860 patent/WO1999041386A2/fr not_active Application Discontinuation
- 1999-02-09 BR BR9907831-7A patent/BR9907831A/pt not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0421919A2 (fr) * | 1989-09-02 | 1991-04-10 | Ciba-Geigy Ag | Système d'expression fongique encodant la polygalacturonase |
WO1994014966A1 (fr) * | 1992-12-24 | 1994-07-07 | Gist-Brocades N.V. | CLONAGE ET EXPRESSION DU GENE DE L'EXO-POLYGALACTURONASE DE L'$i(ASPERGILLUS) |
WO1995034223A1 (fr) * | 1994-06-15 | 1995-12-21 | Novo Nordisk A/S | Stabilite des extraits troubles |
Non-Patent Citations (3)
Title |
---|
CHEN W P ET AL.: "Purification and some properties of beta-1,3-xylanases from Aspergillus terreus A-07. Endo-1,3-beta-D-xylanase isolation and characterization" AGRICULTURAL AND BIOLOGICAL CHEMISTRY., vol. 50, no. 5, 1986, pages 1183-1194, XP002111869 TOKYO., JP ISSN: 0002-1369 * |
RENARD C.M.G.C. ET AL.: "The xylose-rich pectins from pae hulls" INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, vol. 21, no. 1-2, August 1997 (1997-08), pages 155-162, XP002112536 AMSTERDAM NL * |
SCHOLS H A ET AL: "A xylogalacturonan subunit present in the modified hairy regions of apple pectin" CARBOHYDRATE RESEARCH, vol. 279, 27 December 1995 (1995-12-27), page 265-279 XP004018802 amsterdam nl ISSN: 0008-6215 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014170498A1 (fr) | 2013-04-19 | 2014-10-23 | Danmarks Tekniske Universitet | Production enzymatique de polysaccharides à partir de gomme adragante |
Also Published As
Publication number | Publication date |
---|---|
AU2724799A (en) | 1999-08-30 |
CN1294633A (zh) | 2001-05-09 |
WO1999041386A3 (fr) | 2000-01-20 |
EP1054978A2 (fr) | 2000-11-29 |
BR9907831A (pt) | 2000-10-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7514110B1 (en) | Talaromyces xylanases | |
EP2285954B1 (fr) | Utilisation d enzymes pectinolytiques dans le traitement de purée de fruit ou de légume, et séquences enzymatiques afférentes | |
US5550045A (en) | Cloning and expression of DNA encoding a ripening form of a polypeptide having rhamnogalcturonase activity | |
AU2011273690A1 (en) | Polypeptide having or assisting in carbohydrate material degrading activity and uses thereof | |
JP4267696B2 (ja) | ガラクタナーゼ活性を有する酵素 | |
Flipphi et al. | Cloning of the Aspergillus niger gene encoding α-L-arabinofuranosidase A | |
US6329185B1 (en) | Enzyme with galactanase activity | |
EP0506190B1 (fr) | Clonage et expression de gènes codant pour des enzymes d'origine fongique dégradant l'arabinane | |
WO1999041386A2 (fr) | Nouvelle endo-xylogalacturonase | |
JP4243348B2 (ja) | ペクチンエステラーゼ活性を有する酵素 | |
Visser et al. | Gene expression in filamentous fungi; expression of pectinases and glucose oxidase in Aspergillus niger | |
US5474922A (en) | β-1,4-galactanase and a DNA sequence | |
EP0570075A2 (fr) | Clonage et expression d'ADN codante pour une forme mûrissante d'une polypeptide ayant l'activité de rhamnogalacturonase | |
US6602696B1 (en) | Aspergillus tubigensis polygalacturonase | |
MXPA00007787A (en) | Novel endo-xylogalacturonase | |
Venkatesh et al. | 14 Production of Pectinases and Utilization in Food Processing | |
KR101518200B1 (ko) | 스트렙토마이세스 종 cs624 균주 유래의 신규 자일란 분해 효소 및 농업부산물 분해에서의 응용 | |
EP1614748A1 (fr) | Polygalacturonase fungal avec des propriétés de macération améliorées | |
WO1999038956A2 (fr) | Enzymes modifiant le rhamnogalacturonane ii, adn codant pour de tels enzymes et procede de production de tels enzymes | |
AU1015800A (en) | Cloning and expression of DNA encoding a ripening form of a polypeptide having phamnogalacturonase activity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 99804431.8 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
AK | Designated states |
Kind code of ref document: A3 Designated state(s): AL AM AT AU AZ BA BB BG BR BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT UA UG US UZ VN YU ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A3 Designated state(s): GH GM KE LS MW SD SZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: PA/a/2000/007787 Country of ref document: MX |
|
NENP | Non-entry into the national phase |
Ref country code: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1999907529 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1999907529 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09601852 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: CA |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 1999907529 Country of ref document: EP |