CN101400799A - 生产β-赖氨酸的方法 - Google Patents
生产β-赖氨酸的方法 Download PDFInfo
- Publication number
- CN101400799A CN101400799A CNA2007800082921A CN200780008292A CN101400799A CN 101400799 A CN101400799 A CN 101400799A CN A2007800082921 A CNA2007800082921 A CN A2007800082921A CN 200780008292 A CN200780008292 A CN 200780008292A CN 101400799 A CN101400799 A CN 101400799A
- Authority
- CN
- China
- Prior art keywords
- gene
- methionin
- aminomutase
- acid
- microorganism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 230000008569 process Effects 0.000 title claims abstract description 10
- PJDINCOFOROBQW-LURJTMIESA-N (3S)-3,7-diaminoheptanoic acid Chemical compound NCCCC[C@H](N)CC(O)=O PJDINCOFOROBQW-LURJTMIESA-N 0.000 title claims description 38
- 238000004519 manufacturing process Methods 0.000 title abstract description 16
- 108090000623 proteins and genes Proteins 0.000 claims abstract description 99
- 244000005700 microbiome Species 0.000 claims abstract description 47
- 108010029731 6-phosphogluconolactonase Proteins 0.000 claims abstract description 13
- 108010064711 Homoserine dehydrogenase Proteins 0.000 claims abstract description 12
- 102100031126 6-phosphogluconolactonase Human genes 0.000 claims abstract description 10
- 108010018962 Glucosephosphate Dehydrogenase Proteins 0.000 claims abstract description 8
- 108010053763 Pyruvate Carboxylase Proteins 0.000 claims abstract description 7
- 108010056578 diaminopimelate dehydrogenase Proteins 0.000 claims abstract description 7
- 108091000044 4-hydroxy-tetrahydrodipicolinate synthase Proteins 0.000 claims abstract description 6
- 108020004652 Aspartate-Semialdehyde Dehydrogenase Proteins 0.000 claims abstract description 6
- 108010001625 Diaminopimelate epimerase Proteins 0.000 claims abstract description 6
- 108010014468 Dihydrodipicolinate Reductase Proteins 0.000 claims abstract description 6
- 108010051862 Methylmalonyl-CoA mutase Proteins 0.000 claims abstract description 6
- 102100039895 Pyruvate carboxylase, mitochondrial Human genes 0.000 claims abstract description 6
- 102000011929 Succinate-CoA Ligases Human genes 0.000 claims abstract description 6
- 108010075728 Succinate-CoA Ligases Proteins 0.000 claims abstract description 6
- 108020004530 Transaldolase Proteins 0.000 claims abstract description 6
- 102100028601 Transaldolase Human genes 0.000 claims abstract description 6
- 102000014701 Transketolase Human genes 0.000 claims abstract description 6
- 108010043652 Transketolase Proteins 0.000 claims abstract description 6
- 102000019010 Methylmalonyl-CoA Mutase Human genes 0.000 claims abstract description 5
- 229930182817 methionine Natural products 0.000 claims description 55
- XUYPXLNMDZIRQH-LURJTMIESA-N N-acetyl-L-methionine Chemical compound CSCC[C@@H](C(O)=O)NC(C)=O XUYPXLNMDZIRQH-LURJTMIESA-N 0.000 claims description 54
- 241000186226 Corynebacterium glutamicum Species 0.000 claims description 21
- 102000004190 Enzymes Human genes 0.000 claims description 21
- 108090000790 Enzymes Proteins 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 19
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 14
- 230000033228 biological regulation Effects 0.000 claims description 13
- 241000186524 Clostridium subterminale Species 0.000 claims description 12
- LCTONWCANYUPML-UHFFFAOYSA-N Pyruvic acid Chemical compound CC(=O)C(O)=O LCTONWCANYUPML-UHFFFAOYSA-N 0.000 claims description 10
- WLJVNTCWHIRURA-UHFFFAOYSA-N pimelic acid Chemical compound OC(=O)CCCCCC(O)=O WLJVNTCWHIRURA-UHFFFAOYSA-N 0.000 claims description 10
- 229930091371 Fructose Natural products 0.000 claims description 7
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 7
- 239000005715 Fructose Substances 0.000 claims description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 7
- 108090000765 processed proteins & peptides Proteins 0.000 claims description 7
- DTBNBXWJWCWCIK-UHFFFAOYSA-N Phosphoenolpyruvic acid Natural products OC(=O)C(=C)OP(O)(O)=O DTBNBXWJWCWCIK-UHFFFAOYSA-N 0.000 claims description 6
- GLXUWZBUPATPBR-RQJHMYQMSA-N (2R,6S)-2-amino-6-(3-carboxypropanoylamino)heptanedioic acid Chemical compound C(CCC(=O)O)(=O)N[C@@H](CCC[C@@H](N)C(=O)O)C(=O)O GLXUWZBUPATPBR-RQJHMYQMSA-N 0.000 claims description 5
- 102000003929 Transaminases Human genes 0.000 claims description 5
- 108090000340 Transaminases Proteins 0.000 claims description 5
- 125000000637 arginyl group Chemical group N[C@@H](CCCNC(N)=N)C(=O)* 0.000 claims description 5
- 150000002085 enols Chemical class 0.000 claims description 5
- 229920001184 polypeptide Polymers 0.000 claims description 5
- 102000004196 processed proteins & peptides Human genes 0.000 claims description 5
- 229940107700 pyruvic acid Drugs 0.000 claims description 5
- 108091000080 Phosphotransferase Proteins 0.000 claims description 4
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 3
- 241000186216 Corynebacterium Species 0.000 claims description 3
- 102000020233 phosphotransferase Human genes 0.000 claims description 3
- SLXKOJJOQWFEFD-UHFFFAOYSA-N 6-aminohexanoic acid Chemical compound NCCCCCC(O)=O SLXKOJJOQWFEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229960002684 aminocaproic acid Drugs 0.000 claims description 2
- 241000588722 Escherichia Species 0.000 claims 1
- 241000605909 Fusobacterium Species 0.000 claims 1
- 125000002730 succinyl group Chemical group C(CCC(=O)*)(=O)* 0.000 claims 1
- 108010055400 Aspartate kinase Proteins 0.000 abstract description 5
- 230000002074 deregulated effect Effects 0.000 abstract description 5
- 102000027487 Fructose-Bisphosphatase Human genes 0.000 abstract description 2
- 108010017464 Fructose-Bisphosphatase Proteins 0.000 abstract description 2
- 108010014885 Arginine-tRNA ligase Proteins 0.000 abstract 1
- 102100036131 Arginine-tRNA ligase, cytoplasmic Human genes 0.000 abstract 1
- 108030003594 Diaminopimelate decarboxylases Proteins 0.000 abstract 1
- 239000004472 Lysine Substances 0.000 abstract 1
- 108091000076 Lysine 2,3-aminomutase Proteins 0.000 abstract 1
- 108091000041 Phosphoenolpyruvate Carboxylase Proteins 0.000 abstract 1
- 108010009197 Succinyldiaminopimelate transaminase Proteins 0.000 abstract 1
- 108010073086 succinyl-CoA-tetrahydrodipicolinate N-succinyltransferase Proteins 0.000 abstract 1
- 229940024606 amino acid Drugs 0.000 description 28
- 150000001413 amino acids Chemical class 0.000 description 28
- 235000001014 amino acid Nutrition 0.000 description 25
- 230000003321 amplification Effects 0.000 description 25
- 238000003199 nucleic acid amplification method Methods 0.000 description 25
- 108020004414 DNA Proteins 0.000 description 16
- 230000008859 change Effects 0.000 description 15
- 241000193403 Clostridium Species 0.000 description 14
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 13
- 101150045416 kamA gene Proteins 0.000 description 11
- 230000001580 bacterial effect Effects 0.000 description 10
- 241000894006 Bacteria Species 0.000 description 9
- 210000004027 cell Anatomy 0.000 description 9
- 238000012258 culturing Methods 0.000 description 9
- 101150084561 epmB gene Proteins 0.000 description 9
- 230000035772 mutation Effects 0.000 description 9
- AGPKZVBTJJNPAG-WHFBIAKZSA-N L-isoleucine Chemical compound CC[C@H](C)[C@H](N)C(O)=O AGPKZVBTJJNPAG-WHFBIAKZSA-N 0.000 description 8
- 238000000855 fermentation Methods 0.000 description 8
- 230000004151 fermentation Effects 0.000 description 8
- 239000002773 nucleotide Substances 0.000 description 8
- 125000003729 nucleotide group Chemical group 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 102000004169 proteins and genes Human genes 0.000 description 7
- 101100180542 Clostridium subterminale kamA gene Proteins 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 101100268657 Methanococcus maripaludis (strain S2 / LL) ablA gene Proteins 0.000 description 6
- -1 aromatic amino acid Chemical class 0.000 description 6
- 239000013604 expression vector Substances 0.000 description 6
- 238000013467 fragmentation Methods 0.000 description 6
- 238000006062 fragmentation reaction Methods 0.000 description 6
- 235000018102 proteins Nutrition 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 230000029087 digestion Effects 0.000 description 5
- 239000012634 fragment Substances 0.000 description 5
- 230000000968 intestinal effect Effects 0.000 description 5
- 239000003550 marker Substances 0.000 description 5
- 235000015097 nutrients Nutrition 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 238000013518 transcription Methods 0.000 description 5
- 230000035897 transcription Effects 0.000 description 5
- QKEWQOJCHPFEAF-YFKPBYRVSA-N (3S)-3,6-diaminohexanoic acid Chemical compound NCCC[C@H](N)CC(O)=O QKEWQOJCHPFEAF-YFKPBYRVSA-N 0.000 description 4
- 125000004080 3-carboxypropanoyl group Chemical group O=C([*])C([H])([H])C([H])([H])C(O[H])=O 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 108700010070 Codon Usage Proteins 0.000 description 4
- 239000013599 cloning vector Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010353 genetic engineering Methods 0.000 description 4
- 230000005764 inhibitory process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 108020004999 messenger RNA Proteins 0.000 description 4
- 239000013612 plasmid Substances 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- 102000001762 6-phosphogluconolactonase Human genes 0.000 description 3
- 101100439426 Bradyrhizobium diazoefficiens (strain JCM 10833 / BCRC 13528 / IAM 13628 / NBRC 14792 / USDA 110) groEL4 gene Proteins 0.000 description 3
- 108091026890 Coding region Proteins 0.000 description 3
- 230000004544 DNA amplification Effects 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 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 3
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 3
- 108091028043 Nucleic acid sequence Proteins 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 241000187747 Streptomyces Species 0.000 description 3
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 3
- 229930006000 Sucrose Natural products 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 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 3
- 150000001576 beta-amino acids Chemical class 0.000 description 3
- 239000013611 chromosomal DNA Substances 0.000 description 3
- 230000009615 deamination Effects 0.000 description 3
- 238000006481 deamination reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012847 fine chemical Substances 0.000 description 3
- 230000002068 genetic effect Effects 0.000 description 3
- 239000008103 glucose Substances 0.000 description 3
- 101150077981 groEL gene Proteins 0.000 description 3
- 238000002703 mutagenesis Methods 0.000 description 3
- 231100000350 mutagenesis Toxicity 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 235000019198 oils Nutrition 0.000 description 3
- 238000003752 polymerase chain reaction Methods 0.000 description 3
- 108091008146 restriction endonucleases Proteins 0.000 description 3
- 238000012807 shake-flask culturing Methods 0.000 description 3
- 239000005720 sucrose Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000605986 Fusobacterium nucleatum Species 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- WHUUTDBJXJRKMK-VKHMYHEASA-N L-glutamic acid Chemical compound OC(=O)[C@@H](N)CCC(O)=O WHUUTDBJXJRKMK-VKHMYHEASA-N 0.000 description 2
- 229930195722 L-methionine Natural products 0.000 description 2
- 241000187654 Nocardia Species 0.000 description 2
- 102000001253 Protein Kinase Human genes 0.000 description 2
- 108091081024 Start codon Proteins 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 125000003282 alkyl amino group Chemical group 0.000 description 2
- 150000001408 amides Chemical class 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 230000004071 biological effect Effects 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000003776 cleavage reaction Methods 0.000 description 2
- 241000186254 coryneform bacterium Species 0.000 description 2
- 238000001976 enzyme digestion Methods 0.000 description 2
- 210000003527 eukaryotic cell Anatomy 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000003402 intramolecular cyclocondensation reaction Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 2
- 150000007523 nucleic acids Chemical group 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 108060006633 protein kinase Proteins 0.000 description 2
- 230000008521 reorganization Effects 0.000 description 2
- 230000007017 scission Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000002415 sodium dodecyl sulfate polyacrylamide gel electrophoresis Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000000346 sugar Nutrition 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000013519 translation Methods 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
- VQGRPWQSNMEBHD-YQQOEYNUSA-N (3S)-3,6-diamino-N-[(3S,6Z,9S,12S,15S)-3-[(4S,6R)-2-amino-4-hydroxy-1,4,5,6-tetrahydropyrimidin-6-yl]-6-[(carbamoylamino)methylidene]-9,12-bis(hydroxymethyl)-2,5,8,11,14-pentaoxo-1,4,7,10,13-pentazacyclohexadec-15-yl]hexanamide 3-[[(2R)-2,4-dihydroxy-3,3-dimethylbutanoyl]amino]propanoic acid sulfuric acid Chemical compound OS(O)(=O)=O.OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O.N1C(=O)\C(=C\NC(N)=O)NC(=O)[C@H](CO)NC(=O)[C@H](CO)NC(=O)[C@@H](NC(=O)C[C@@H](N)CCCN)CNC(=O)[C@@H]1[C@@H]1NC(N)=N[C@@H](O)C1 VQGRPWQSNMEBHD-YQQOEYNUSA-N 0.000 description 1
- NWXMGUDVXFXRIG-WESIUVDSSA-N (4s,4as,5as,6s,12ar)-4-(dimethylamino)-1,6,10,11,12a-pentahydroxy-6-methyl-3,12-dioxo-4,4a,5,5a-tetrahydrotetracene-2-carboxamide Chemical compound C1=CC=C2[C@](O)(C)[C@H]3C[C@H]4[C@H](N(C)C)C(=O)C(C(N)=O)=C(O)[C@@]4(O)C(=O)C3=C(O)C2=C1O NWXMGUDVXFXRIG-WESIUVDSSA-N 0.000 description 1
- ACIOXMJZEFKYHZ-BXKDBHETSA-N (6r,7r)-7-amino-8-oxo-3-(pyridin-1-ium-1-ylmethyl)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate Chemical compound S([C@@H]1[C@@H](C(N1C=1C([O-])=O)=O)N)CC=1C[N+]1=CC=CC=C1 ACIOXMJZEFKYHZ-BXKDBHETSA-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
- 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
- 125000001572 5'-adenylyl group Chemical group C=12N=C([H])N=C(N([H])[H])C=1N=C([H])N2[C@@]1([H])[C@@](O[H])([H])[C@@](O[H])([H])[C@](C(OP(=O)(O[H])[*])([H])[H])([H])O1 0.000 description 1
- RZVAJINKPMORJF-UHFFFAOYSA-N Acetaminophen Chemical compound CC(=O)NC1=CC=C(O)C=C1 RZVAJINKPMORJF-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 102000005869 Activating Transcription Factors Human genes 0.000 description 1
- 108010005254 Activating Transcription Factors Proteins 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 239000004475 Arginine Substances 0.000 description 1
- 244000063299 Bacillus subtilis Species 0.000 description 1
- 235000014469 Bacillus subtilis Nutrition 0.000 description 1
- 101100032149 Bacillus subtilis (strain 168) pyc gene Proteins 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 241000253373 Caldanaerobacter subterraneus subsp. tengcongensis Species 0.000 description 1
- 102000053602 DNA Human genes 0.000 description 1
- 101100098219 Dictyostelium discoideum argS1 gene Proteins 0.000 description 1
- 101100465553 Dictyostelium discoideum psmB6 gene Proteins 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 108091029865 Exogenous DNA Proteins 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 101150082479 GAL gene Proteins 0.000 description 1
- 108700028146 Genetic Enhancer Elements Proteins 0.000 description 1
- 108700007698 Genetic Terminator Regions Proteins 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 102000003886 Glycoproteins Human genes 0.000 description 1
- 108090000288 Glycoproteins Proteins 0.000 description 1
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 1
- QNAYBMKLOCPYGJ-REOHCLBHSA-N L-alanine Chemical compound C[C@H](N)C(O)=O QNAYBMKLOCPYGJ-REOHCLBHSA-N 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-P L-argininium(2+) Chemical compound NC(=[NH2+])NCCC[C@H]([NH3+])C(O)=O ODKSFYDXXFIFQN-BYPYZUCNSA-P 0.000 description 1
- DCXYFEDJOCDNAF-REOHCLBHSA-N L-asparagine Chemical compound OC(=O)[C@@H](N)CC(N)=O DCXYFEDJOCDNAF-REOHCLBHSA-N 0.000 description 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 description 1
- ZDXPYRJPNDTMRX-VKHMYHEASA-N L-glutamine Chemical compound OC(=O)[C@@H](N)CCC(N)=O ZDXPYRJPNDTMRX-VKHMYHEASA-N 0.000 description 1
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 description 1
- ROHFNLRQFUQHCH-YFKPBYRVSA-N L-leucine Chemical compound CC(C)C[C@H](N)C(O)=O ROHFNLRQFUQHCH-YFKPBYRVSA-N 0.000 description 1
- COLNVLDHVKWLRT-QMMMGPOBSA-N L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=CC=C1 COLNVLDHVKWLRT-QMMMGPOBSA-N 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
- QIVBCDIJIAJPQS-VIFPVBQESA-N L-tryptophane Chemical compound C1=CC=C2C(C[C@H](N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-VIFPVBQESA-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
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- ROHFNLRQFUQHCH-UHFFFAOYSA-N Leucine Natural products CC(C)CC(N)C(O)=O ROHFNLRQFUQHCH-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-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
- 102000029749 Microtubule Human genes 0.000 description 1
- 108091022875 Microtubule Proteins 0.000 description 1
- 101100276922 Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576) dapF2 gene Proteins 0.000 description 1
- 108091034117 Oligonucleotide Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000019483 Peanut oil Nutrition 0.000 description 1
- 239000001888 Peptone Substances 0.000 description 1
- 108010080698 Peptones Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 108010076039 Polyproteins Proteins 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 101100084022 Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) lapA gene Proteins 0.000 description 1
- 101100169519 Pyrococcus abyssi (strain GE5 / Orsay) dapAL gene Proteins 0.000 description 1
- MEFKEPWMEQBLKI-AIRLBKTGSA-N S-adenosyl-L-methioninate Chemical compound O[C@@H]1[C@H](O)[C@@H](C[S+](CC[C@H](N)C([O-])=O)C)O[C@H]1N1C2=NC=NC(N)=C2N=C1 MEFKEPWMEQBLKI-AIRLBKTGSA-N 0.000 description 1
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 239000004141 Sodium laurylsulphate Substances 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000021355 Stearic acid Nutrition 0.000 description 1
- 101100116197 Streptomyces lavendulae dcsC gene Proteins 0.000 description 1
- 108700005078 Synthetic Genes 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
- 108700009124 Transcription Initiation Site Proteins 0.000 description 1
- QIVBCDIJIAJPQS-UHFFFAOYSA-N Tryptophan Natural products C1=CC=C2C(CC(N)C(O)=O)=CNC2=C1 QIVBCDIJIAJPQS-UHFFFAOYSA-N 0.000 description 1
- 239000006035 Tryptophane Substances 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- SCHKAKNJXBPJHD-HKJHEKHQSA-N [(2r,3r,4s,6r)-6-[[(3as,7r,7as)-7-hydroxy-4-oxo-1,3a,5,6,7,7a-hexahydroimidazo[4,5-c]pyridin-2-yl]amino]-5-[[3-amino-6-(3,6-diaminohexanoylamino)hexanoyl]amino]-4-hydroxy-2-(hydroxymethyl)oxan-3-yl] carbamate Chemical compound NCCCC(N)CC(=O)NCCCC(N)CC(=O)NC1[C@H](O)[C@@H](OC(N)=O)[C@@H](CO)O[C@H]1NC1=N[C@@H]2C(=O)NC[C@@H](O)[C@H]2N1 SCHKAKNJXBPJHD-HKJHEKHQSA-N 0.000 description 1
- KIPLYOUQVMMOHB-MXWBXKMOSA-L [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O Chemical compound [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O KIPLYOUQVMMOHB-MXWBXKMOSA-L 0.000 description 1
- 238000011481 absorbance measurement Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000000516 activation analysis Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229960001570 ademetionine Drugs 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000005273 aeration Methods 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001449 anionic compounds Chemical class 0.000 description 1
- 230000000692 anti-sense effect Effects 0.000 description 1
- 101150050866 argD gene Proteins 0.000 description 1
- 101150024756 argS gene Proteins 0.000 description 1
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 235000003704 aspartic acid Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 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
- 230000008827 biological function Effects 0.000 description 1
- 230000003570 biosynthesizing effect Effects 0.000 description 1
- 230000006696 biosynthetic metabolic pathway Effects 0.000 description 1
- 210000004899 c-terminal region Anatomy 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 229940041514 candida albicans extract Drugs 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000010261 cell growth Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229960005091 chloramphenicol Drugs 0.000 description 1
- 210000000349 chromosome Anatomy 0.000 description 1
- 230000014107 chromosome localization Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000010367 cloning Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000005515 coenzyme Substances 0.000 description 1
- 239000002299 complementary DNA Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 210000004748 cultured cell Anatomy 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 101150011371 dapA gene Proteins 0.000 description 1
- 101150073654 dapB gene Proteins 0.000 description 1
- 101150009649 dapC gene Proteins 0.000 description 1
- 101150064923 dapD gene Proteins 0.000 description 1
- 101150000582 dapE gene Proteins 0.000 description 1
- 101150062988 dapF gene Proteins 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- ZPWVASYFFYYZEW-UHFFFAOYSA-L dipotassium hydrogen phosphate Chemical compound [K+].[K+].OP([O-])([O-])=O ZPWVASYFFYYZEW-UHFFFAOYSA-L 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000004520 electroporation Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000001502 gel electrophoresis Methods 0.000 description 1
- 238000012239 gene modification Methods 0.000 description 1
- 230000005017 genetic modification Effects 0.000 description 1
- 235000013617 genetically modified food Nutrition 0.000 description 1
- 235000001727 glucose Nutrition 0.000 description 1
- 229960002989 glutamic acid Drugs 0.000 description 1
- ZDXPYRJPNDTMRX-UHFFFAOYSA-N glutamine Natural products OC(=O)C(N)CCC(N)=O ZDXPYRJPNDTMRX-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 1
- HNDVDQJCIGZPNO-UHFFFAOYSA-N histidine Natural products OC(=O)C(N)CC1=CN=CN1 HNDVDQJCIGZPNO-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 229910001412 inorganic anion Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 1
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 1
- 229960000310 isoleucine Drugs 0.000 description 1
- AGPKZVBTJJNPAG-UHFFFAOYSA-N isoleucine Natural products CCC(C)C(N)C(O)=O AGPKZVBTJJNPAG-UHFFFAOYSA-N 0.000 description 1
- 101150066555 lacZ gene Proteins 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 229960004232 linoleic acid Drugs 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 101150033534 lysA gene Proteins 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 210000004688 microtubule Anatomy 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 235000013379 molasses Nutrition 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- APNPVBXEWGCCLU-QNRZBPGKSA-N mycomycin Chemical compound OC(=O)C\C=C\C=C/C=C=CC#CC#C APNPVBXEWGCCLU-QNRZBPGKSA-N 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 239000002777 nucleoside Substances 0.000 description 1
- 150000003833 nucleoside derivatives Chemical class 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000000312 peanut oil Substances 0.000 description 1
- 235000019319 peptone Nutrition 0.000 description 1
- COLNVLDHVKWLRT-UHFFFAOYSA-N phenylalanine Natural products OC(=O)C(N)CC1=CC=CC=C1 COLNVLDHVKWLRT-UHFFFAOYSA-N 0.000 description 1
- 101150009573 phoA gene Proteins 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
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000013600 plasmid vector Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 108091033319 polynucleotide Proteins 0.000 description 1
- 102000040430 polynucleotide Human genes 0.000 description 1
- 239000002157 polynucleotide Substances 0.000 description 1
- 239000003910 polypeptide antibiotic agent Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 238000001742 protein purification Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 101150016257 pycA gene Proteins 0.000 description 1
- 239000011589 pyridoxal 5'-phosphate Substances 0.000 description 1
- 229960001327 pyridoxal phosphate Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 101150079601 recA gene Proteins 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012882 sequential analysis Methods 0.000 description 1
- 239000013605 shuttle vector Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000002741 site-directed mutagenesis Methods 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008117 stearic acid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 description 1
- 235000020238 sunflower seed Nutrition 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229940063650 terramycin Drugs 0.000 description 1
- 229930101283 tetracycline Natural products 0.000 description 1
- 230000002103 transcriptional effect Effects 0.000 description 1
- 101150059923 trc gene Proteins 0.000 description 1
- 229960004799 tryptophan Drugs 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
- 239000011782 vitamin Substances 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 239000011720 vitamin B Substances 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 210000005253 yeast cell Anatomy 0.000 description 1
- 239000012138 yeast extract Substances 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
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/005—Amino acids other than alpha- or beta amino acids, e.g. gamma amino acids
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/02—Amides, e.g. chloramphenicol or polyamides; Imides or polyimides; Urethanes, i.e. compounds comprising N-C=O structural element or polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P13/00—Preparation of nitrogen-containing organic compounds
- C12P13/04—Alpha- or beta- amino acids
- C12P13/08—Lysine; Diaminopimelic acid; Threonine; Valine
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Genetics & Genomics (AREA)
- Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Plant Pathology (AREA)
- Molecular Biology (AREA)
- Biophysics (AREA)
- Physics & Mathematics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
本发明提供通过构建重组微生物和培养所述微生物生产β-赖氨酸的方法,其中所述微生物具有去调控的赖氨酸-2,3-氨基变位酶基因和至少一个去调控的选自组(i)的基因,所述组(i)由天冬氨酸激酶,天冬氨酸半醛脱氢酶,二氢吡啶二羧酸合酶,二氢吡啶二羧酸还原酶,四氢吡啶二羧酸琥珀酰基化酶,琥珀酰-氨基-酮庚二酸氨基转移酶,琥珀酰二氨基庚二酸脱琥珀酰基酶,二氨基庚二酸差向异构酶,二氨基庚二酸脱氢酶,精氨酰tRNA合成酶,二氨基庚二酸脱羧酶,丙酮酸羧化酶,磷酸烯醇式丙酮酸羧化酶,葡萄糖-6-磷酸脱氢酶,转酮酶,转醛酶,6-磷酸葡糖酸内酯酶,果糖1,6-二磷酸酶,高丝氨酸脱氢酶,磷酸烯醇式丙酮酸羧基激酶,琥珀酰辅酶A合成酶,甲基丙二酰辅酶A变位酶组成,条件是如果天冬氨酸激酶作为基因(i)去调控,则非天冬氨酸激酶的至少第二基因(i)必须去调控。
Description
技术领域
本发明涉及一种生产β-赖氨酸的方法。更具体地,本发明涉及重组微生物的使用,所述微生物包括去调控形式的、生产β-赖氨酸所必需的DNA分子。
背景技术
虽然与对应的α-氨基酸相比而言,β-氨基酸较少,但其仍以游离形式和存于多肽中的形式存在于自然界中。Cardillo和Tomasini,Chem.Soc.Rev.25:77(1996);Sewald,Amino Acids 11:397(1996)。由于β-氨基酸比对应的α-氨基酸是更强的碱和更弱的酸,因此,含有β-氨基酸而非α-氨基酸的多肽具有不同的骨架原子模式,导致新的性质。
在20世纪50年代,L-β-赖氨酸在由链霉菌属(Streptomyces)所产生的几种强碱性肽抗生素中被鉴定到。通过水解产生L-β-赖氨酸的抗生素包括紫霉素,黄链菌素A,紫放线菌素,玫瑰丝菌素和地霉素。Stadtman,Adv.Enzymol.Relat.Areas Molec.Biol.38:413(1973)。β-赖氨酸也是由真菌诺卡氏菌属(Nocardia)所产抗生素,如菌霉素,的组分,并且β-赖氨酸可用于制备其他的生物学活性化合物。然而,β-赖氨酸的化学合成是耗费时间的,需要昂贵的原料,并且产生外消旋混合物。
发明概述
一方面,本发明提供通过构建重组微生物和培养所述微生物生产β-赖氨酸的方法,其中所述微生物具有去调控的赖氨酸-2,3-氨基变位酶和至少一个去调控的基因,该基因选自于赖氨酸生物合成途径中必需的基因。
另一方面,本发明提供β-氨基-ε-己内酰胺的生产方法,其包括上述用于β-赖氨酸生产的步骤。
另一方面,本发明提供ε-己内酰胺的生产方法,其包括上述用于β-赖氨酸生产的步骤。
发明详述
在下述的发明详述中,许多术语被广泛地使用。在此提供定义以利于本发明的理解。
术语β-赖氨酸指L-β-赖氨酸。
启动子:一段DNA序列,其指导结构基因转录产生mRNA。通常,启动子位于基因的5’区,靠近结构基因的起始密码子。如果启动子为诱导型启动子,则转录速率将响应于诱导物而增加。相反,如果启动子为组成型启动子,则转录速率不受诱导物的调控。
增强子:一种启动子元件。增强子可以提高特定基因转录成mRNA的效率,而不论该增强子相对于转录起始位点的距离或方向。
表达。表达是指由结构基因产生多肽的过程。该过程涉及基因转录为mRNA和该mRNA翻译为多肽。
克隆载体。一种DNA分子,如质粒,粘粒、噬菌粒或噬菌体,其具有在宿主细胞中自主复制的能力,且其可以用于基因操作中转化细胞。克隆载体通常含有一个或少数限制性内切酶识别位点,在这些位点处外源DNA序列可以以可确定的方式插入,而不导致载体的必需生物学功能的丧失;此外,还包括标记基因,该标记基因适用于鉴定和选择已经转化了该克隆载体的细胞。标记基因通常包括提供四环素抗性或氨苄青霉素抗性的基因。
表达载体。一种DNA分子,其包含编码外源蛋白的克隆的结构基因,其提供外源蛋白在重组宿主中的表达。通常,克隆基因的表达被置于(即,有效地连接到)某些调控序列,如启动子和增强子序列的控制之下。启动子序列可以是组成型或是诱导型。
重组宿主。重组宿主可以是含有克隆载体或表达载体的任何原核或真核细胞。该术语也旨在包括已通过基因工程在宿主细胞的染色体或基因组中包含了克隆基因的那些原核或真核细胞。适合的宿主的例子见Sambrook等,MOLECULAR CLONING:A LABORATORY MANUAL,第二版,Cold Spring Harbor Laboratory,Cold Spring Harbor,N.Y.(1989)["Sambrook"].
本文中,基本上纯的蛋白质是指,如通过聚丙烯酰胺-十二烷基硫酸钠凝胶电泳(SDS-PAGE)后的单一条带所表明的,该期望的纯化蛋白质基本上不含污染的细胞成分。术语“基本上纯”还意在通过本领域技术人员所用的一种或多种纯度或同质性特征描述同质的分子。例如,基本上纯的赖氨酸2,3-氨基变位酶将显示出处于参数的标准实验偏差范围内的恒定和重复性特征,所述参数例如:分子量,色谱迁移,氨基酸组成,氨基酸序列,封闭或未封闭的N-端,HPLC洗脱曲线,生物活性,及其他此类参数。然而,该术语不意在排除赖氨酸2,3-氨基变位酶与其他化合物的人工的或合成的混合物。另外,该术语不意在排除从重组宿主中分离的赖氨酸2,3-氨基变位酶融合蛋白。
第一方面,本发明提供通过构建重组微生物和培养所述微生物生产β-赖氨酸的方法,所述微生物具有去调控的赖氨酸-2,3-氨基变位酶和至少一个去调控的选自组(i)的基因,组(i)由天冬氨酸激酶,天冬氨酸半醛脱氢酶,二氢吡啶二羧酸合酶,二氢吡啶二羧酸还原酶,四氢吡啶二羧酸琥珀酰基化酶(succinylase),琥珀酰-氨基-酮庚二酸氨基转移酶,琥珀酰二氨基庚二酸脱琥珀酰基酶(desuccinylase),二氨基庚二酸差向异构酶,二氨基庚二酸脱氢酶,精氨酰tRNA合成酶,二氨基庚二酸脱羧酶,丙酮酸羧化酶,磷酸烯醇式丙酮酸羧化酶,葡萄糖6-磷酸脱氢酶,转酮酶,转醛酶,6-磷酸葡糖酸内酯酶,果糖1,6-二磷酸酶,高丝氨酸脱氢酶,磷酸烯醇式丙酮酸羧基激酶,琥珀酰辅酶A合成酶,甲基丙二酰辅酶A变位酶组成,条件是如果天冬氨酸激酶基作为基因(i)去调控,则非天冬氨酸激酶的至少第二基因(i)必须去调控。
本发明的方法学涉及重组微生物,优选包括如本文所述的载体或基因(例如,野生型和/或突变的基因),和/或以导致β-赖氨酸生产的方式培养。
术语“重组”微生物包括已被遗传改变、修饰或工程化(例如,基因工程化)从而与其来源自的天然微生物相比展现出改变的,修饰的或不同的基因型和/或表型(例如,当遗传修饰影响微生物的编码核酸序列时)的微生物(如细菌,酵母细胞,真菌细胞等)。
术语“去调控(deregulated)”包括基因产物(例如,赖氨酸-2,3-氨基变位酶)的表达对比该微生物操作之前的表达或未经操作的可比微生物中的表达而言水平较低或较高。在一个实施方案中,可以对微生物进行遗传操作(例如,基因工程化),使基因产物以高于或低于该微生物操作之前的表达或未经操作的可比微生物中的表达的水平表达。遗传操作可包括,但不限于,改变或修饰与特定基因的表达相关的调控序列或位点(例如,通过去除强启动子,诱导型启动子或多个启动子),修改特定基因的染色体定位,改变毗邻特定基因的核酸序列,如核糖体结合位点或转录终止子,减少特定基因的拷贝数,修饰参与转录特定基因和/或翻译特定基因产物的蛋白(例如,调节蛋白,抑制子,增强子,转录激活因子等),或本领域常规用于去调控特定基因的表达的任何其他常规手段(包括但不限于反义核酸分子的使用,或其他的敲除或阻断靶标蛋白的表达的方法)。
术语“去调控的赖氨酸-2,3-氨基变位酶”也指将赖氨酸-2,3-氨基变位酶活性引入到之前未观察到赖氨酸-2,3-氨基变位酶活性的微生物中,如通过引入一个或多个拷贝的异源赖氨酸-2,3-氨基变位酶基因到微生物中,优选利用基因工程方法进行。
赖氨酸2,3-氨基变位酶催化L-赖氨酸可逆异构化为β-赖氨酸。由近端梭菌(Clostridium subterminale)SB4株中分离的该酶是一个具有明显相同的亚基的六聚体蛋白,如由扩散和沉降系数所确定的,其分子量为285,000。Chirpich等,J.Biol.Chem.245:1778(1970);Aberhart等,J.Am.Chem.Soc.105:5461(1983);Chang等,Biochemistry 35:11081(1996)。该梭菌酶含有铁-硫簇,钴和锌,和5′-磷酸吡哆醛,并且它可由S-腺苷甲硫氨酸激活。不像典型的腺苷酰钴胺素依赖性氨基变位酶,该梭菌酶不包含或要求任何种类的维生素B12辅酶。
梭菌赖氨酸2,3-氨基变位酶的核苷酸和预测的氨基酸序列(SEQ IDNOs:1和2)公开于US6,248,874B1中。
编码梭菌赖氨酸2,3-氨基变位酶基因的DNA分子,可以使用具有基于SEQ ID NO:1的核苷酸序列的多聚核苷酸探针,筛选cDNA或基因组文库而获得。如,合适的文库可经由自近端梭菌SB4株(ATCC No.29748)获得基因组DNA并根据标准方法构建文库而制备。见,例如,Ausubel等(编),SHORT PROTOCOLS IN MOLECULAR BIOLOGY,第3版,2-1至2-13页和5-1至5-6页(John Wiley & Sons,Inc.1995)。
备选地,梭菌赖氨酸2,3-氨基变位酶基因可使用互为引物的长寡核苷酸通过合成DNA分子而获得。见,例如,Ausubel等(编),CURRENTPROTOCOLS IN MOLECULAR BIOLOGY,8.2.8至8.2.13页(1990)["Ausubel"]。此外,也可见Wosnick等,Gene 60:115(1987);和Ausubel等(编),SHORT PROTOCOLS IN MOLECULAR BIOLOGY,第3版,8-8至8-9页(John Wiley&Sons,Inc.1995)。利用聚合酶链式反应的成熟技术提供了合成至少2千碱基长度的DNA分子的能力。见Adang等,Plant Molec.Biol.21:1131(1993);Bambot等,PCR Methods andApplications 2:266(1993);Dillon等,"聚合酶链式反应用于快速构建合成基因,"METHODS IN MOLECULAR BIOLOGY,Vol.15:PCRPROTOCOLS:CURRENT METHODS AND APPLICATIONS,White(ed.),263-268页,(Humana Press,Inc.1993);Holowachuk等,PCRMethods Appl.4:299(1995)。
可以产生相比于亲本酶含有保守氨基酸改变的梭菌赖氨酸2,3-氨基变位酶变体。即,可获得SEQ ID NO:2中包含一个或多个氨基酸替换的变体,其中以烷基氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的烷基氨基酸,以芳族氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的芳族氨基酸,以含硫氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的含硫氨基酸,以含羟基的氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的含羟基的氨基酸,以酸性氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的酸性氨基酸,以碱性氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的碱性氨基酸,或以羧酸氨基酸替代梭菌赖氨酸2,3-氨基变位酶的氨基酸序列中的二碱基一羧酸氨基酸。
在常见氨基酸中,例如,“保守氨基酸替代”可以由以下各组中的氨基酸之间的替代来说明:(1)甘氨酸,丙氨酸,缬氨酸,亮氨酸和异亮氨酸,(2)苯丙氨酸,酪氨酸和色氨酸,(3)半胱氨酸和蛋氨酸,(4)丝氨酸和苏氨酸,(5)天冬氨酸和谷氨酸,(6)谷氨酰胺和天冬酰胺,(7)赖氨酸,精氨酸和组氨酸。
于梭菌赖氨酸2,3-氨基变位酶中的保守氨基酸改变,可通过SEQ IDNO:1.中所述核苷酸的核苷酸替换而引入。这种“保守氨基酸”变体可以,如通过寡核苷酸定向诱变,接头分区诱变,利用聚合酶链式反应的诱变等获得。见Ausubel等,同上引文,8.0.3-8.5.9页;Ausubel等(编),SHORTPROTOCOLS IN MOLECULAR BIOLOGY,第3版,8-10至8-22页(John Wiley & Sons,Inc.1995)。一般地也可见McPherson(ed.),DIRECTED MUTAGENESIS:A PRACTICAL APPROACH,IRL Press(1991)。变体转换L-赖氨酸为L-β-赖氨酸的能力可使用标准酶活性分析试验,如在此所述的分析试验来确定。
来自近端梭菌之外的其它来源,如来自枯草芽孢杆菌(Bacillus subtilis)或大肠杆菌(Escherichia coli)的赖氨酸2,3-氨基变位酶已公开于US6,248,874B1中。该美国专利中涉及赖氨酸2,3-氨基变位酶的分离,SEQID NOs及表达的部分特此明确地并入作为参考。
优选的本发明赖氨酸2,3-氨基变位酶是来源于近端梭菌、枯草芽孢杆菌和大肠杆菌的赖氨酸2,3-氨基变位酶,及它们的等价基因,所述等价基因与对应的“原始”基因产物具有高达80%,优选90%,最优选95%和98%的序列一致性(基于氨基酸序列),并仍具有赖氨酸2,3-氨基变位酶的生物学活性。这些等价基因可容易地通过以本领域所熟知的方法引入核苷酸替换、缺失或插入而构建。
另一本发明的优选实施方案是源于近端梭菌的赖氨酸2,3-氨基变位酶(US6,248,874B1的SEQ ID NO:2),其通过应用谷氨酸棒状杆菌(Corynebacterium glutamicum)的密码子用法返译为DNA。该赖氨酸2,3-氨基变位酶多核苷酸序列用于在棒杆菌属(Corynebacterium)的微生物,尤其是谷氨酸棒状杆菌中表达赖氨酸2,3-氨基变位酶。
除了去调控的赖氨酸2,3-氨基变位酶基因,根据本发明的微生物还必须具有至少一个去调控的选自组(i)的基因。该组(i)是在赖氨酸生物合成中起关键作用的一组基因,由天冬氨酸激酶、天冬氨酸半醛脱氢酶、二氢吡啶二羧酸合酶、二氢吡啶二羧酸还原酶、四氢吡啶二羧酸琥珀酰基化酶、琥珀酰-氨基-酮庚二酸氨基转移酶、琥珀酰二氨基庚二酸脱琥珀酰基酶、二氨基庚二酸差向异构酶、二氨基庚二酸脱氢酶、精氨酰tRNA合成酶、二氨基庚二酸脱羧酶、丙酮酸羧化酶、磷酸烯醇式丙酮酸羧化酶、葡萄糖6-磷酸脱氢酶、转酮酶、转醛酶、6-磷酸葡糖酸内酯酶、果糖1,6-二磷酸酶、高丝氨酸脱氢酶、磷酸烯醇式丙酮酸羧基激酶、琥珀酰辅酶A合成酶、甲基丙二酰辅酶A变位酶组成。
根据本发明的方法至少一个组(i)的基因必须被去调控。根据本发明,优选一个以上的组(i)的基因,例如:二,三,四,五,六,七,八,九,十个基因在微生物中被去调控。
组(i)的基因和基因产物在本领域中是已知的。EP 1108790公开了高丝氨酸脱氢酶和丙酮酸羧化酶基因的突变,这些突变对重组棒状杆菌生产赖氨酸的生产力具有有利的影响。WO 00/63388公开了天冬氨酸激酶基因的突变,该突变对重组棒状杆菌生产赖氨酸的生产力具有有利的影响。就上文所述基因的突变,将EP 1108790及WO 00/63388并入作为参考。
在下表中针对每个基因/基因产物,提及了相应基因的可能去调控方式。在表的“去调控”列中引用的文献和文件就基因去调控方面并入此处作为参考。在表中所提及的方式为相应基因的去调控的优选实施方案。
表1
酶(基因产物) | 基因 | 去调控 |
天冬氨酸激酶 | ask | 经点突变解除反馈抑制(Eggeling等,(编),Handbook ofCorynebacterium glutamicum,20.2.2页(CRC press,2005))和扩增) |
天冬氨酸半醛脱氢酶 | asd | 扩增 |
二氢吡啶二羧酸合酶 | dapA | 扩增 |
二氢吡啶二羧酸还原酶 | dapB | 扩增 |
四氢吡啶二羧酸琥珀酰基化酶 | dapD | 扩增 |
琥珀酰-氨基-酮庚二酸氨基转移酶 | dapC | 扩增 |
琥珀酰-二氨基庚二酸脱琥珀酰基酶 | dapE | 扩增 |
二氨基庚二酸脱氢酶 | ddh | 扩增 |
二氨基庚二酸差向异构酶 | dapF | 扩增 |
精氨酰tRNA合成酶 | argS | 扩增 |
二氨基庚二酸脱羧酶 | lysA | 扩增 |
丙酮酸羧化酶 | pycA | 经点突变解除反馈抑制(EP1108790)及扩增 |
磷酸烯醇式丙酮酸羧化酶 | ppc | 扩增 |
葡萄糖-6-磷酸脱氢酶 | zwf | 经点突变解除反馈抑制(US2003/0175911)及扩增 |
转酮酶 | tkt | 扩增 |
转醛酶 | tal | 扩增 |
6-磷酸葡糖酸内酯酶 | pgl | 扩增 |
果糖1,6-二磷酸酶 | fbp | 扩增 |
高丝氨酸脱氢酶 | hom | 经点突变衰减(EP1108790) |
磷酸烯醇式丙酮酸羧基激酶 | pck | 经突变或其他方式敲除或沉默 |
琥珀酰辅酶A合成酶 | sucC | 经点突变衰减(WO 05/58945) |
甲基丙二酰辅酶A变位酶 | 经点突变衰减(WO 05/58945) |
天冬氨酸激酶、天冬氨酸半醛脱氢酶、二氢吡啶二羧酸合酶、二氢吡啶二羧酸还原酶、四氢吡啶二羧酸琥珀酰基化酶、琥珀酰-氨基-酮庚二酸氨基转移酶、琥珀酰二氨基庚二酸脱琥珀酰基酶、二氨基庚二酸差向异构酶、二氨基庚二酸脱氢酶、精氨酰tRNA合成酶、二氨基庚二酸脱羧酶、丙酮酸羧化酶、磷酸烯醇式丙酮酸羧化酶、葡萄糖6-磷酸脱氢酶、转酮酶、转醛酶、6-磷酸葡糖酸内酯酶、果糖1,6-二磷酸酶基因的去调控的一个优选方法为增加基因活性的“向上”突变,如提高酶活性的基因扩增、使用强表达信号和/或点突变。
高丝氨酸脱氢酶,磷酸烯醇式丙酮酸羧基激酶,琥珀酰辅酶A合成酶,甲基丙二酰辅酶A变位酶基因的去调控的一个优选方法为降低基因活性的“向下”突变,如基因缺失或破坏、使用弱表达信号和/或点突变。
如果天冬氨酸激酶作为基因(i)组的成员被去调控,那么至少第二基因(i)成员——非天冬氨酸激酶——也必须被去调控。
为了表达根据本发明的去调控的基因,编码酶的DNA序列必须与在表达载体中控制转录表达的调控序列有效连接,然后导入原核或真核宿主细胞。除了转录调控序列如启动子和增强子外,表达载体还可以包括翻译调节序列和标记基因,所述标记基因适用于选择携带该表达载体的细胞。
在原核宿主中用于表达的合适的启动子可以是可阻遏的,组成型的或可诱导的。合适的启动子是本领域技术人员熟知的,包括能够识别T4,T3,Sp6和T7聚合酶的启动子,λ噬菌体的PR和PL启动子,大肠杆菌的trp,recA,热休克,lacUV5,tac,lpp-lacλpr,phoA,gal,trc和lacZ启动子,枯草芽孢杆菌的α-淀粉酶和σ28特异性启动子,芽孢杆菌属(Bacillus)的噬菌体的启动子,链霉菌属启动子,λ噬菌体的int启动子,pBR322的β-内酰胺酶基因的bla启动子,和氯霉素乙酰转移酶基因的CAT启动子。原核启动子见Glick的综述,J.Ind.Microbiol.1:277(1987);Watson等,MOLECULAR BIOLOGY OF THE GENE,第4版,Benjamin Cummins(1987);Ausubel等,同上引文,和Sambrook等,同上引文。
用于赖氨酸2,3-氨基变位酶的表达的优选启动子是谷氨酸棒状杆菌的sodA启动子。为了改善表达,终止子,如谷氨酸棒状杆菌的groEL终止子可插入到赖氨酸2,3-氨基变位酶基因的下游。
在原核宿主中表达蛋白质的方法是本领域技术人员熟知的。见,如,Williams等,"使用质粒载体在大肠杆菌中表达外源蛋白质并使用特异性多克隆抗体纯化,"DNA CLONING 2:EXPRESSION SYSTEMS,第2版,Glover等(编),15-58页(Oxford University Press1995)。也见Ward等,"抗体的遗传操作和表达,"MONOCLONAL ANTIBODIES:PRINCIPLESAND APPLICATIONS,137-185页(Wiley-Liss,Inc.1995);及见Georgiou,"在细菌中表达蛋白质,"PROTEIN ENGINEERING:PRINCIPLES AND PRACTICE,Cleland等(编),101-127页(John Wiley& Sons,Inc.1996)。
表达载体可利用各种技术导入细菌宿主细胞,包括氯化钙转化,电穿孔等。如,见Ausubel等(编),SHORT PROTOCOLS IN MOLECULARBIOLOGY,第3版,1-1至1-24页(John Wiley & Sons,Inc.1995)。
本发明的一个重要方面涉及培养本文所述的重组微生物,以便产生期望的化合物β-赖氨酸。术语“培养”包括本发明的活微生物的维持和/或生长(如培养物或菌株的维持和/或生长)。在一个实施方案中,本发明的微生物培养在液体培养基中。在另一实施方案中,本发明的微生物培养在固体培养基或半固体培养基中。在一优选的实施方案中,本发明的微生物培养在包括必须养分或有利于微生物的维持和/或生长的养分的培养基(例如,灭菌的液体培养基)中。
可用碳源包括糖和碳水化合物,例如葡萄糖,蔗糖,乳糖,果糖,麦芽糖,糖蜜,淀粉和纤维素,油和脂肪,如豆油,葵花籽油,花生油和椰子油,脂肪酸,如棕榈酸,硬脂酸和亚油酸,醇类,如甘油和乙醇,及有机酸如乙酸。在一优选的实施方案中,葡萄糖,果糖或蔗糖用作碳源。这些物质可单独使用或作为混合物使用。
可用氮源包括有机含氮化合物,如蛋白胨,酵母提取物,肉膏,麦芽提取物,玉米浆,大豆粉和尿素,或无机化合物,如硫酸铵,氯化铵,磷酸铵,碳酸铵和硝酸铵。该氮源可单独使用或作为混合物使用。可用磷源是磷酸、磷酸二氢钾、磷酸氢二钾或对应的含钠盐。培养基中还必须含有生长所必需的金属盐,如硫酸镁或硫酸铁。最后,除上述物质外,还可以使用必需的促生长物质,例如,氨基酸和维生素。合适的前体也可添加到培养基中。所述的饲养物质可作为单一一批添加到培养基中或适当地在培养过程中添加。
优选地,本发明的微生物在受控的pH条件下进行培养。术语“受控的pH”包括可导致期望的精细化学品,例如,β-赖氨酸生产的任何pH值。在一个实施方案中,微生物培养在pH值约为7的条件下。在另一实施方案中,在6.0和8.5之间的pH培养微生物。期望的pH值可以通过本领域技术人员已知的任何方法来维持。例如,碱性化合物,如氢氧化钠,氢氧化钾,氨,或氨水,或酸性化合物,如磷酸或硫酸,可以用来适当地控制培养基的pH值。
也优选地,本发明的微生物培养在受控的通气条件下。术语“受控的通气”包括足够的通气(例如,氧)以导致期望的精细化学品,例如,β-赖氨酸的产生。在一个实施方案中,通气可通过调节培养基中的氧水平,例如,通过调节培养基中的溶氧量来进行控制。优选地,培养物的通气通过搅拌培养物来控制。搅拌可以利用螺旋桨或类似的机械搅拌设备,通过旋转或摇动生长容器(如发酵罐)或通过各种泵设备来提供。通气还可以通过让无菌空气或氧气通过培养基(例如,通过发酵混合物)来控制。也优选,本发明的微生物在无过量起泡的条件下(例如,通过消泡剂的添加,如加入脂肪酸聚乙二醇酯)培养。
此外,本发明的微生物可以培养在受控的温度条件下。术语“受控的温度”包括可以导致期望的精细化学品,例如,β-赖氨酸产生的任何温度。在一个实施方案中,受控的温度包括15℃和95℃之间的温度。在另一实施方案中,受控的温度包括15℃和70℃之间的温度。优选温度在20℃和55℃之间,更优选温度在30℃和45℃之间或30℃和50℃之间。
微生物可培养(如维持和/或生长)在液体培养基中,并且优选地通过常规的培养方法进行连续培养或间歇式培养,所述培养方法为如静置培养,试管培养,振荡培养(例如,旋转振荡培养,振荡摇瓶培养等),通气旋动培养或发酵。在一个优选的实施方案中,微生物培养在摇瓶中。在一更优选的实施方案中,微生物培养在发酵罐中(例如,发酵方法)。本发明的发酵方法包括,但不仅限于,分批,补料分批和连续发酵方法。术语“分批方法”或“分批发酵”是指一个封闭的系统,其中培养基的组成,营养物,补充添加剂等在开始发酵时已设定,且不在发酵过程中改变,然而,可尝试控制诸如pH值和氧浓度等因素以防止培养基过度酸化和/或微生物死亡。术语“分批补料方法”或“分批补料”发酵是指随着发酵的进展添加一种或多种底物或补充物(例如,递增地或连续地添加)的分批发酵。术语“连续方法”或“连续发酵”是指这样的系统,在该系统中连续地将确定成分的发酵培养基加到发酵罐中并同时移出等量的已用过的培养基或“条件”培养基,优选用于回收期望的β-赖氨酸。各种这样的方法已经开发出来并且为本领域所熟知。
本发明的方法可以进一步包括回收β-赖氨酸的步骤。术语“回收”β-赖氨酸包括从培养基中提取,收获,分离或纯化该化合物。回收该化合物可以根据本领域已知的任何常规的分离或纯化方法完成,所述方法包括但不限于使用常规树脂处理(例如,阴离子或阳离子交换树脂,非离子型吸附树脂等),使用常规吸附剂处理(例如,活性炭,硅酸,硅胶,纤维素,氧化铝等),改变pH值,溶剂萃取法(例如,采用常规的溶剂,如乙醇,乙酸乙酯,己烷等),蒸馏,透析,过滤,浓缩,结晶,重结晶,调节pH值,冷冻干燥等。例如β-赖氨酸可从培养基中首先通过去除微生物而回收。去除生物质后的发酵液然后通过或经过阳离子交换树脂以去除不想要的阳离子,然后通过或经过阴离子交换树脂以去除不需要的无机阴离子和比β-赖氨酸具有更强酸性的有机酸。
另一方面,本发明提供了用于β-氨基-ε-己内酰胺生产的方法,其包括如上所述用于β-赖氨酸生产的步骤。β-赖氨酸经过分子内环化形成β-氨基-ε-己内酰胺。该环化反应可在β-赖氨酸的分离和/或纯化之前直接完成,或是使用分离的β-赖氨酸进行。
另一方面,本发明提供了用于ε-己内酰胺生产的方法,其包括如上所述用于β-赖氨酸生产的步骤。正如上所述β-赖氨酸可经分子内环化形成β-氨基-ε-己内酰胺,而β-氨基-ε-己内酰胺可以通过选择性地脱氨而得到ε-己内酰胺。该脱氨方法在本领域中是已知的。
本发明的另一方面是生产酸的方法,其包括如上所述用于β-赖氨酸生产的步骤及随后β-赖氨酸的β-氨基官能团的脱氨。由此产生的ε-氨基己酸可转化为ε-己内酰胺或直接地——不经环化为内酰胺——经由已知的聚合技术转化为聚酰胺。
ε-己内酰胺是用于聚酰胺,特别是PA6生产的非常重要的单体。
实施例
1.近端梭菌赖氨酸2,3-氨基变位酶基因的克隆
根据具核梭杆菌(Fusobacterium nucleatum)和腾冲嗜热厌氧菌(Thermoanaerobacter tengcongensis)的赖氨酸2,3-氨基变位酶基因的上游和下游的保守区,设计一组寡核苷酸引物用于分离近端梭菌赖氨酸2,3-氨基变位酶基因(kamA)。使用PCR引物WKJ90/WKJ65和WKJ68/WKJ93,并使用近端梭菌的染色体作为模板,扩增上游和下游区的DNA片段,分别包括kamA基因的N端和C端序列。扩增DNA片段的序列分析完成后,进行纯化,得到含有kamA结构区的起始和终止序列的产物。基于已确定的上游和下游序列,合成PCR引物WKJ105/WKJ106,用于分离近端梭菌kamA基因的全序列。纯化扩增的PCR片段,用限制性酶Xho I和Mlu I消化,并连接到由相同限制性酶消化后的pClik5aMCS载体上(pClik5aMCS kamA)。
2.合成的近端梭菌赖氨酸2,3-氨基变位酶基因的克隆
近端梭菌kamA基因的密码子用法与谷氨酸棒状杆菌的十分不同,这可能导致在谷氨酸棒状杆菌赖氨酸生产菌株中基因表达的降低。为提高谷氨酸棒状杆菌中的基因表达,构建了合成的kamA基因,其适应于谷氨酸棒状杆菌的密码子用法并具有替换其自身启动子和终止子的谷氨酸棒状杆菌sodA启动子(Psod)和groEL终止子。合成的kamA基因与原始基因对比显示72%的核苷酸序列相似性。合成的kamA基因已克隆到pClik5aMCS载体上(pClik5aMCS syn_kamA)。
3.枯草芽孢杆菌赖氨酸2,3-氨基变位酶基因的克隆
含有枯草芽孢杆菌赖氨酸2,3-氨基变位酶基因(yodO)的DNA片段用PCR引物WKJ71/WKJ72自染色体DNA进行了扩增。扩增的DNA片段经纯化,Xho I和Mlu I消化后,插入到pClik5aMCS载体的Xho I和Mlu I切割位点之间(pClik5aMCS yodO)。
为增加基因的表达,在yodO基因的编码区的前面替换为谷氨酸棒状杆菌的sod A启动子。分别用PCR引物WKJ75/WKJ78和WKJ73/WKJ76从各染色体DNA上扩增含有sod A启动子和yodO基因的上游区的DNA片段,该片段作为模板与PCR引物WKJ73/WKJ78一起用于融合PCR以产生yodO上游-Psod产物。随后,Psod-控制的yodO基因利用WKJ73/WKJ74引物、及yodO上游-Psod和yodO编码区(使用引物WKJ77/WKJ74扩增的)作为模板,经融合PCR产生。PCR产物经纯化,Xho I和Mlu I消化后,插入pClik5aMCS载体(pClik5aMCSPsod yodO)。
4.大肠杆菌赖氨酸2,3-氨基变位酶基因的克隆
以PCR引物WKJ29/WKJ30及大肠杆菌染色体作为模板来扩增赖氨酸2,3-氨基变位酶基因(yjeK)。扩增的PCR片段经纯化,Xho I和Nde I限制性酶消化后,连接到经相同限制性酶消化的pClik5aMCS载体上(pClik5aMCS yjeK)。
为增加该基因的表达,在yjeK基因的起始密码子的前面替换为谷氨酸棒状杆菌的sod A启动子。含有sod A启动子和包括下游区的yjeK基因编码区的DNA片段分别采用PCR引物WKJ31/OLD47及WKJ32/WKJ30自各染色体DNA扩增,该DNA片段作为模板与WKJ31/WKJ30引物用于融合PCR产生Psod-yjeK基因。PCR片段经纯化,Xho I和Nde I消化后,插入pClik5aMCS载体的Xho I-Nde I切割位点中(pClik5aMCSPsod yjeK)。
所用寡核苷酸引物:
WKJ29 gagagagactcgagttctacgcgagtaccggtcag
WKJ30 caacagcaatgcatatgaataattaaaggttatgc
WKJ31 gagagagactcgagtagctgccaattattccggg
WKJ32 tacgaaaggattttttacccatggcgcatattgtaaccct
WKJ65 cagtctgcatcgctaacatc
WKJ68 ggctctagaaccagtaggat
WKJ71 gagagagagctcgagaagctttttaatcgaggcgt
WKJ72 ctctctctcacgcgtaagcttgagctgctgatatgtcaggc
WKJ73 tcccgaaagtttatggtgaa
WKJ74 gagagagactcgagtagctgccaattattccggg
WKJ75 acgaaaggattttttacccatgaacatcattgccattatg
WKJ76 ctctctctcactagtgctcaatcacatattgccca
WKJ77 gagagagactcgagccggaagcgatggcggcatc
WKJ78 tacgaaaggattttttacccatgagttctgccaagaagat
WKJ90 cctaacacagaaatgtc
WKJ93 tcctttgtaatatcgc
WKJ105 atcttcttggcagaactcatgggtaaaaaatcctttcgta
WKJ106 gagagagatctagatagctgccaattattccggg
OLD47 gggtaaaaaatcctttcgtag
表2.所用质粒
质粒 | 特性 |
pClik5aMCS | 大肠杆菌/谷氨酸棒状杆菌穿梭载体,Kmr |
pClik5aMCS kamA | pClik5aMCS携带近端梭菌赖氨酸2,3-氨基变位酶基因(kamA) |
pClik5aMCS syn_kamA | pClik5aMCS携带由sodA启动子、适应于谷氨酸棒状杆菌密码子用法的kamA基因及groEL终止子组成的、合成的近端梭菌kamA |
pClik5aMCS yodO | pClik5aMCS携带枯草芽孢杆菌赖氨酸2,3-氨基变位酶基因(yodO) |
pClik5aMCS Psod yodO | pClik5aMCS携带与谷氨酸棒状杆菌sodA启动子融合的枯草芽孢杆菌yodO |
pClik5aMCS yjeK | pClik5aMCS携带大肠杆菌赖氨酸2,3-氨基变位酶基因(yjeK) |
pClik5aMCS Psod yjeK | pClik5aMCS携带与谷氨酸棒状杆菌sodA启动子融合的大肠杆菌yjeK |
5.谷氨酸棒状杆菌的β-赖氨酸生产菌株的构建
为构建重组β-赖氨酸生产菌株,用具有赖氨酸2,3-氨基变位酶基因的重组质粒转化赖氨酸生产菌LU11271,其中所述生产菌LU11271是由谷氨酸棒状杆菌野生型菌株ATCC 13032通过将点突变T311I并入天冬氨酸激酶基因中,使二氨基庚二酸脱氢酶基因加倍和破坏磷酸烯醇式丙酮酸羧基激酶基因而构建的。
6.在摇瓶培养中生产β-赖氨酸
摇瓶实验在重组菌株上进行以检测β-赖氨酸的生产。如WO2005059139所述的,使用与赖氨酸生产相同的培养基和条件。为了对照,宿主菌株和具有pClik5aMCS的重组菌株平行检测。菌株于30℃过夜在CM琼脂上进行预培养,将培养的细胞收集到含有1.5ml 0.9% NaCl的微管中,且涡旋后通过610nm吸光度测定细胞密度。对于主培养,用悬浮的细胞接种10ml生产培养基以达到1.5的初始OD,所述生产培养基包含在高压灭菌的100ml Erlenmeyer摇瓶中具有0.5g CaCO3。主培养于旋转摇床(Infors AJ118,Bottmingen,Switzerland)上于30℃200rpm进行48-78小时。为了监测细胞的生长,0.1ml培养液混合0.9ml1N HCl以消除CaCO3,并在适当稀释后于610nm测定吸光度。采用HPLC法(Agilent 1100 Series LC system)测定β-赖氨酸、赖氨酸及残余的糖,包括葡萄糖,果糖和蔗糖的浓度。
正如下表显示,与对照菌株相比,在含有合成的近端梭菌kamA基因的重组菌株的培养液中观测到β-赖氨酸的积累,这表明合成的近端梭菌kamA基因在谷氨酸棒状杆菌中具有功能。另外,合成的kamA基因的表达经SDS-PAGE已证实。
表3.具有近端梭菌kamA扩增的菌株的摇瓶培养物
Claims (9)
1.通过构建重组微生物和培养所述微生物生产β-赖氨酸的方法,其中所述微生物具有去调控的赖氨酸-2,3-氨基变位酶基因和至少一个去调控的选自组(i)的基因,所述组(i)由天冬氨酸激酶、天冬氨酸半醛脱氢酶、二氢吡啶二羧酸合酶、二氢吡啶二羧酸还原酶、四氢吡啶二羧酸琥珀酰基化酶、琥珀酰-氨基-酮庚二酸氨基转移酶、琥珀酰-二氨基庚二酸脱琥珀酰基酶、二氨基庚二酸差向异构酶、二氨基庚二酸脱氢酶、精氨酰tRNA合成酶、二氨基庚二酸脱羧酶、丙酮酸羧化酶、磷酸烯醇式丙酮酸羧化酶、葡萄糖-6-磷酸脱氢酶、转酮酶、转醛酶、6-磷酸葡糖酸内酯酶、果糖1,6-二磷酸酶、高丝氨酸脱氢酶、磷酸烯醇式丙酮酸羧基激酶、琥珀酰辅酶A合成酶、甲基丙二酰辅酶A变位酶组成,条件是如果天冬氨酸激酶作为基因(i)去调控,则非天冬氨酸激酶的至少第二基因(i)必须被去调控。
2.根据权利要求1的方法,其中微生物属于棒状杆菌属。
3.根据权利要求1的方法,其中微生物是谷氨酸棒状杆菌。
4.根据权利要求1的方法,其中去调控的赖氨酸2,3-氨基变位酶对于该微生物为异源赖氨酸2,3-氨基变位酶。
5.根据权利要求1的方法,其中重组微生物具有源于梭菌属、芽孢杆菌属或埃希氏杆菌属的赖氨酸2,3-氨基变位酶。
6.根据权利要求1的方法,其中赖氨酸2,3-氨基变位酶具有近端梭菌、枯草芽孢杆菌或大肠杆菌的赖氨酸2,3-氨基变位酶的多肽序列或与对应的原始多肽具有至少80%的同一性的、具有赖氨酸2,3-氨基变位酶活性的多肽序列。
7.用于β-氨基-ε-己内酰胺生产的方法,包括如权利要求1所述的步骤。
8.用于ε-己内酰胺生产的方法,包括如权利要求1所述的步骤。
9.用于ε-氨基己酸生产的方法,包括如权利要求1所述的步骤。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06110914.6 | 2006-03-09 | ||
EP06110914 | 2006-03-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN101400799A true CN101400799A (zh) | 2009-04-01 |
Family
ID=37944124
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNA2007800082921A Pending CN101400799A (zh) | 2006-03-09 | 2007-03-07 | 生产β-赖氨酸的方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090029425A1 (zh) |
EP (1) | EP1996714A1 (zh) |
KR (1) | KR20080113225A (zh) |
CN (1) | CN101400799A (zh) |
BR (1) | BRPI0708680A2 (zh) |
WO (1) | WO2007101867A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011111073A2 (en) * | 2010-03-11 | 2011-09-15 | Anand Bhadalakar | PROCESS FOR BIOGENESIS OF L-LYSINE FROM ε-CAPROLACTAM OR ε-CAPROLACTAM DEGRADATION OR RELATED INTERMEDIATES |
WO2013093737A1 (en) * | 2011-12-22 | 2013-06-27 | Basf Se | Processes and recombinant microorganisms for the production of fine chemicals |
CN104611264A (zh) * | 2015-02-02 | 2015-05-13 | 中国科学院亚热带农业生态研究所 | 一种赖氨酸高产菌株及应用 |
CN116042416A (zh) * | 2023-01-09 | 2023-05-02 | 天津科技大学 | 高产ε-聚赖氨酸的多基因过表达链霉菌工程菌株及方法与应用 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1761487B1 (en) | 2004-06-10 | 2013-08-07 | Board of Trustees of Michigan State University | Synthesis of caprolactam from lysine |
WO2008103366A2 (en) | 2007-02-20 | 2008-08-28 | Board Of Trustees Of Michigan State University | Catalytic deamination for carprolactam production |
EP2240594A1 (en) * | 2008-02-04 | 2010-10-20 | Basf Se | Method for the production of dipicolinate |
ES2510865T3 (es) * | 2008-03-03 | 2014-10-21 | Global Bio-Chem Technology Group Company Limited | Microorganismo recombinante y procedimiento para producir L-lisina |
KR20090131073A (ko) * | 2008-06-17 | 2009-12-28 | 이화여자대학교 산학협력단 | 코리네박테리움 속의 균을 이용한 산화물의 제조방법 |
US8647642B2 (en) | 2008-09-18 | 2014-02-11 | Aviex Technologies, Llc | Live bacterial vaccines resistant to carbon dioxide (CO2), acidic PH and/or osmolarity for viral infection prophylaxis or treatment |
JP2010176489A (ja) * | 2009-01-30 | 2010-08-12 | Toshiba Corp | 情報処理装置、方法及びプログラム |
US8404465B2 (en) | 2009-03-11 | 2013-03-26 | Celexion, Llc | Biological synthesis of 6-aminocaproic acid from carbohydrate feedstocks |
KR101580785B1 (ko) * | 2014-04-10 | 2015-12-29 | 씨제이제일제당 주식회사 | O-숙시닐호모세린 생산 미생물 및 이를 이용한 o-숙시닐호모세린의 생산방법 |
US11180535B1 (en) | 2016-12-07 | 2021-11-23 | David Gordon Bermudes | Saccharide binding, tumor penetration, and cytotoxic antitumor chimeric peptides from therapeutic bacteria |
US11129906B1 (en) | 2016-12-07 | 2021-09-28 | David Gordon Bermudes | Chimeric protein toxins for expression by therapeutic bacteria |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6248874B1 (en) * | 1998-11-24 | 2001-06-19 | Wisconsin Alumni Research Foundation | DNA molecules encoding bacterial lysine 2,3-aminomutase |
JP4526710B2 (ja) * | 1999-04-19 | 2010-08-18 | 協和発酵バイオ株式会社 | 新規な脱感作型アスパルトキナーゼ |
JP4623825B2 (ja) * | 1999-12-16 | 2011-02-02 | 協和発酵バイオ株式会社 | 新規ポリヌクレオチド |
US20030175911A1 (en) * | 2000-03-20 | 2003-09-18 | Stephen Hans | Process for the preparation of L-amino acids with amplification of the zwf gene |
US6893484B2 (en) * | 2003-10-06 | 2005-05-17 | Desert Energy Ltd | Low operating pressure gas scrubber |
DE10359661A1 (de) * | 2003-12-18 | 2005-07-28 | Basf Ag | Genvarianten die für Proteine aus dem Stoffwechselweg von Feinchemikalien codieren |
CA2547860A1 (en) * | 2003-12-18 | 2005-06-30 | Basf Aktiengesellschaft | Methods for the preparation of lysine by fermentation of corynebacterium glutamicum |
-
2007
- 2007-03-07 EP EP07712462A patent/EP1996714A1/en not_active Withdrawn
- 2007-03-07 US US12/281,789 patent/US20090029425A1/en not_active Abandoned
- 2007-03-07 BR BRPI0708680-6A patent/BRPI0708680A2/pt not_active Application Discontinuation
- 2007-03-07 WO PCT/EP2007/052138 patent/WO2007101867A1/en active Application Filing
- 2007-03-07 KR KR1020087024567A patent/KR20080113225A/ko not_active Application Discontinuation
- 2007-03-07 CN CNA2007800082921A patent/CN101400799A/zh active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011111073A2 (en) * | 2010-03-11 | 2011-09-15 | Anand Bhadalakar | PROCESS FOR BIOGENESIS OF L-LYSINE FROM ε-CAPROLACTAM OR ε-CAPROLACTAM DEGRADATION OR RELATED INTERMEDIATES |
WO2011111073A3 (en) * | 2010-03-11 | 2011-11-03 | Anand Bhadalakar | PROCESS FOR BIOGENESIS OF L-LYSINE FROM ε-CAPROLACTAM OR ε-CAPROLACTAM DEGRADATION OR RELATED INTERMEDIATES |
WO2013093737A1 (en) * | 2011-12-22 | 2013-06-27 | Basf Se | Processes and recombinant microorganisms for the production of fine chemicals |
EP2794852A4 (en) * | 2011-12-22 | 2015-09-02 | Basf Se | METHOD AND RECOMBINANT MICROORGANISMS FOR THE PRODUCTION OF FINE CHEMICALS |
US9644220B2 (en) | 2011-12-22 | 2017-05-09 | Basf Se | Processes and recombinant microorganisms for the production of fine chemicals |
CN104611264A (zh) * | 2015-02-02 | 2015-05-13 | 中国科学院亚热带农业生态研究所 | 一种赖氨酸高产菌株及应用 |
CN104611264B (zh) * | 2015-02-02 | 2017-08-18 | 中国科学院亚热带农业生态研究所 | 一种赖氨酸高产菌株及应用 |
CN116042416A (zh) * | 2023-01-09 | 2023-05-02 | 天津科技大学 | 高产ε-聚赖氨酸的多基因过表达链霉菌工程菌株及方法与应用 |
Also Published As
Publication number | Publication date |
---|---|
EP1996714A1 (en) | 2008-12-03 |
KR20080113225A (ko) | 2008-12-29 |
US20090029425A1 (en) | 2009-01-29 |
BRPI0708680A2 (pt) | 2011-06-07 |
WO2007101867A1 (en) | 2007-09-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101400799A (zh) | 生产β-赖氨酸的方法 | |
CN101389765B (zh) | 生产尸胺的方法 | |
CN101600796B (zh) | 具有增强的l-赖氨酸产率的棒状杆菌属微生物以及使用所述微生物生产l-赖氨酸的方法 | |
CN102753682A (zh) | 用于生产尸胺的方法和重组微生物 | |
CN101765659B (zh) | L-赖氨酸的生产方法 | |
CN103492553A (zh) | 用于生产尸胺的方法和重组微生物 | |
KR20140090130A (ko) | L-라이신 생산능을 갖는 미생물을 이용하여 l-라이신을 생산하는 방법 | |
CN103403147A (zh) | 产腐胺的微生物以及使用此微生物生产腐胺的方法 | |
CN103635578A (zh) | 编码甘油醛3-磷酸脱氢酶的gap基因的启动子的变体 | |
CN103497979A (zh) | 用于改良生产天冬氨酸衍生的氨基酸及化学品的改变的乙醛酸支路 | |
CN106795485A (zh) | 生产o‑磷酸丝氨酸的微生物和利用其生产o‑磷酸丝氨酸或l‑半胱氨酸的方法 | |
KR100815041B1 (ko) | 아미노산 생산의 대사 공학 | |
CN107002027A (zh) | 用于生产l‑精氨酸的棒状杆菌属微生物和使用其的l‑精氨酸生产方法 | |
KR20090084099A (ko) | 개량된 프로모터 및 이를 이용한 l-라이신의 생산 방법 | |
CN101463358B (zh) | 一种腈水合酶基因簇及其应用 | |
CN105555953A (zh) | 新型突变体鸟氨酸脱羧酶蛋白和其用途 | |
AU775301B2 (en) | Method for increasing the yield of recombinant proteins in microbial fermentation processes | |
CN1254545C (zh) | 蛋白质的生产方法 | |
JPH0227980A (ja) | 新規微生物及びそれを用いるd−ビオチンの製法 | |
CN103459412A (zh) | 发酵制备有机化合物的微生物和方法 | |
CN116656754A (zh) | 一种异亮氨酸生产方法、乙酰羟酸合酶突变体及重组微生物与应用 | |
CN116262915A (zh) | 3-异丙基苹果酸脱水酶突变体及其应用 | |
KR20090092438A (ko) | L-트립토판을 생산하는 미생물 및 이를 이용한l-트립토판 생산 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090401 |