CN114507649B - 嗜热酶及一锅法高效合成udp-葡萄糖和udp-葡萄糖醛酸的方法 - Google Patents
嗜热酶及一锅法高效合成udp-葡萄糖和udp-葡萄糖醛酸的方法 Download PDFInfo
- Publication number
- CN114507649B CN114507649B CN202210140823.9A CN202210140823A CN114507649B CN 114507649 B CN114507649 B CN 114507649B CN 202210140823 A CN202210140823 A CN 202210140823A CN 114507649 B CN114507649 B CN 114507649B
- Authority
- CN
- China
- Prior art keywords
- udp
- gcc
- gag
- thermophilic
- ctc
- 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.)
- Active
Links
- HSCJRCZFDFQWRP-UHFFFAOYSA-N Uridindiphosphoglukose Natural products OC1C(O)C(O)C(CO)OC1OP(O)(=O)OP(O)(=O)OCC1C(O)C(O)C(N2C(NC(=O)C=C2)=O)O1 HSCJRCZFDFQWRP-UHFFFAOYSA-N 0.000 title claims abstract description 113
- HSCJRCZFDFQWRP-JZMIEXBBSA-N UDP-alpha-D-glucose Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1OP(O)(=O)OP(O)(=O)OC[C@@H]1[C@@H](O)[C@@H](O)[C@H](N2C(NC(=O)C=C2)=O)O1 HSCJRCZFDFQWRP-JZMIEXBBSA-N 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 36
- 108090000790 Enzymes Proteins 0.000 title claims abstract description 35
- 102000004190 Enzymes Human genes 0.000 title claims abstract description 33
- 238000005580 one pot reaction Methods 0.000 title claims abstract description 25
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 22
- HDYANYHVCAPMJV-UHFFFAOYSA-N Uridine diphospho-D-glucuronic acid Natural products O1C(N2C(NC(=O)C=C2)=O)C(O)C(O)C1COP(O)(=O)OP(O)(=O)OC1OC(C(O)=O)C(O)C(O)C1O HDYANYHVCAPMJV-UHFFFAOYSA-N 0.000 title abstract description 33
- HDYANYHVCAPMJV-USQUEEHTSA-N udp-glucuronic acid Chemical compound O([P@](O)(=O)O[P@](O)(=O)OC[C@H]1[C@@H]([C@H]([C@@H](O1)N1C(NC(=O)C=C1)=O)O)O)[C@H]1O[C@@H](C(O)=O)[C@H](O)[C@@H](O)[C@@H]1O HDYANYHVCAPMJV-USQUEEHTSA-N 0.000 title abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 60
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 102000030595 Glucokinase Human genes 0.000 claims description 12
- 108010021582 Glucokinase Proteins 0.000 claims description 12
- 102000009569 Phosphoglucomutase Human genes 0.000 claims description 11
- 108091000115 phosphomannomutase Proteins 0.000 claims description 11
- 108010009595 Inorganic Pyrophosphatase Proteins 0.000 claims description 10
- 102000009617 Inorganic Pyrophosphatase Human genes 0.000 claims description 9
- 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 claims description 7
- 239000002773 nucleotide Substances 0.000 claims description 6
- 125000003729 nucleotide group Chemical group 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 3
- 239000007853 buffer solution Substances 0.000 claims description 3
- XCCTYIAWTASOJW-XVFCMESISA-N Uridine-5'-Diphosphate Chemical compound O[C@@H]1[C@H](O)[C@@H](COP(O)(=O)OP(O)(O)=O)O[C@H]1N1C(=O)NC(=O)C=C1 XCCTYIAWTASOJW-XVFCMESISA-N 0.000 claims description 2
- 102100027050 Inorganic pyrophosphatase Human genes 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 17
- 239000000758 substrate Substances 0.000 abstract description 17
- 230000037361 pathway Effects 0.000 abstract description 5
- 108091028043 Nucleic acid sequence Proteins 0.000 abstract description 4
- 238000006555 catalytic reaction Methods 0.000 abstract description 3
- XCCTYIAWTASOJW-UHFFFAOYSA-N UDP-Glc Natural products OC1C(O)C(COP(O)(=O)OP(O)(O)=O)OC1N1C(=O)NC(=O)C=C1 XCCTYIAWTASOJW-UHFFFAOYSA-N 0.000 abstract 2
- 241000282326 Felis catus Species 0.000 description 17
- 239000000047 product Substances 0.000 description 16
- 238000003786 synthesis reaction Methods 0.000 description 16
- 108091008146 restriction endonucleases Proteins 0.000 description 14
- 102000057144 Uridine Diphosphate Glucose Dehydrogenase Human genes 0.000 description 11
- 108010054269 Uridine Diphosphate Glucose Dehydrogenase Proteins 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 10
- 241000588724 Escherichia coli Species 0.000 description 10
- 108090000623 proteins and genes Proteins 0.000 description 10
- PGAVKCOVUIYSFO-XVFCMESISA-N UTP Chemical compound O[C@@H]1[C@H](O)[C@@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=O)O[C@H]1N1C(=O)NC(=O)C=C1 PGAVKCOVUIYSFO-XVFCMESISA-N 0.000 description 9
- 108010085781 maltodextrin phosphorylase Proteins 0.000 description 9
- 229950010342 uridine triphosphate Drugs 0.000 description 9
- PGAVKCOVUIYSFO-UHFFFAOYSA-N uridine-triphosphate Natural products OC1C(O)C(COP(O)(=O)OP(O)(=O)OP(O)(O)=O)OC1N1C(=O)NC(=O)C=C1 PGAVKCOVUIYSFO-UHFFFAOYSA-N 0.000 description 9
- 108020004414 DNA Proteins 0.000 description 8
- 239000000872 buffer Substances 0.000 description 8
- 230000035484 reaction time Effects 0.000 description 8
- 239000005913 Maltodextrin Substances 0.000 description 7
- 238000005251 capillar electrophoresis Methods 0.000 description 7
- 239000008103 glucose Substances 0.000 description 7
- 238000006206 glycosylation reaction Methods 0.000 description 7
- 102000051366 Glycosyltransferases Human genes 0.000 description 6
- 108700023372 Glycosyltransferases Proteins 0.000 description 6
- 229920002774 Maltodextrin Polymers 0.000 description 6
- 238000007036 catalytic synthesis reaction Methods 0.000 description 6
- 238000001976 enzyme digestion Methods 0.000 description 6
- 108700014210 glycosyltransferase activity proteins Proteins 0.000 description 6
- 229940035034 maltodextrin Drugs 0.000 description 6
- 239000013612 plasmid Substances 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 6
- ALYNCZNDIQEVRV-UHFFFAOYSA-N 4-aminobenzoic acid Chemical compound NC1=CC=C(C(O)=O)C=C1 ALYNCZNDIQEVRV-UHFFFAOYSA-N 0.000 description 5
- 241001200922 Gagata Species 0.000 description 5
- 230000002255 enzymatic effect Effects 0.000 description 5
- BPHPUYQFMNQIOC-NXRLNHOXSA-N isopropyl beta-D-thiogalactopyranoside Chemical compound CC(C)S[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O BPHPUYQFMNQIOC-NXRLNHOXSA-N 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- BAWFJGJZGIEFAR-NNYOXOHSSA-N NAD zwitterion Chemical compound NC(=O)C1=CC=C[N+]([C@H]2[C@@H]([C@H](O)[C@@H](COP([O-])(=O)OP(O)(=O)OC[C@@H]3[C@H]([C@@H](O)[C@@H](O3)N3C4=NC=NC(N)=C4N=C3)O)O2)O)=C1 BAWFJGJZGIEFAR-NNYOXOHSSA-N 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000013595 glycosylation Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229930027945 nicotinamide-adenine dinucleotide Natural products 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 150000003384 small molecules Chemical class 0.000 description 4
- 239000013598 vector Substances 0.000 description 4
- 238000005160 1H NMR spectroscopy Methods 0.000 description 3
- 102000002260 Alkaline Phosphatase Human genes 0.000 description 3
- 108020004774 Alkaline Phosphatase Proteins 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001962 electrophoresis Methods 0.000 description 3
- 229950006238 nadide Drugs 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 241000193385 Geobacillus stearothermophilus Species 0.000 description 2
- 229920001090 Polyaminopropyl biguanide Polymers 0.000 description 2
- 241000205188 Thermococcus Species 0.000 description 2
- 241000589596 Thermus Species 0.000 description 2
- ISAKRJDGNUQOIC-UHFFFAOYSA-N Uracil Chemical compound O=C1C=CNC(=O)N1 ISAKRJDGNUQOIC-UHFFFAOYSA-N 0.000 description 2
- 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 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 239000000411 inducer Substances 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229940005657 pyrophosphoric acid Drugs 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000004809 thin layer chromatography Methods 0.000 description 2
- 108050004944 Alpha-glucan phosphorylases Proteins 0.000 description 1
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
- 239000005695 Ammonium acetate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- DBPRUZCKPFOVDV-UHFFFAOYSA-N Clorprenaline hydrochloride Chemical compound O.Cl.CC(C)NCC(O)C1=CC=CC=C1Cl DBPRUZCKPFOVDV-UHFFFAOYSA-N 0.000 description 1
- 238000012270 DNA recombination Methods 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
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 108010002747 Pfu DNA polymerase Proteins 0.000 description 1
- 108010073135 Phosphorylases Proteins 0.000 description 1
- 102000009097 Phosphorylases Human genes 0.000 description 1
- 102000009609 Pyrophosphatases Human genes 0.000 description 1
- 108010009413 Pyrophosphatases Proteins 0.000 description 1
- YWPVROCHNBYFTP-UHFFFAOYSA-N Rubusoside Natural products C1CC2C3(C)CCCC(C)(C(=O)OC4C(C(O)C(O)C(CO)O4)O)C3CCC2(C2)CC(=C)C21OC1OC(CO)C(O)C(O)C1O YWPVROCHNBYFTP-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 241001052560 Thallis Species 0.000 description 1
- 241000203780 Thermobifida fusca Species 0.000 description 1
- 241000135044 Thermobifida fusca YX Species 0.000 description 1
- 241000696041 Thermococcus onnurineus Species 0.000 description 1
- 241001054881 Thermococcus onnurineus NA1 Species 0.000 description 1
- 241000868182 Thermus thermophilus HB8 Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000370 acceptor Substances 0.000 description 1
- 238000001042 affinity chromatography Methods 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 229940043376 ammonium acetate Drugs 0.000 description 1
- 235000019257 ammonium acetate Nutrition 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 230000006696 biosynthetic metabolic pathway Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006356 dehydrogenation reaction Methods 0.000 description 1
- 238000006209 dephosphorylation reaction Methods 0.000 description 1
- 238000001784 detoxification Methods 0.000 description 1
- 239000001177 diphosphate Substances 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 235000011180 diphosphates Nutrition 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000006911 enzymatic reaction Methods 0.000 description 1
- 239000013604 expression vector Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000023611 glucuronidation Effects 0.000 description 1
- 239000000348 glycosyl donor Substances 0.000 description 1
- 125000003147 glycosyl group Chemical group 0.000 description 1
- 235000013402 health food Nutrition 0.000 description 1
- 150000002433 hydrophilic molecules Chemical class 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 150000002634 lipophilic molecules Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012269 metabolic engineering Methods 0.000 description 1
- 230000037353 metabolic pathway Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 229940101270 nicotinamide adenine dinucleotide (nad) Drugs 0.000 description 1
- BOPGDPNILDQYTO-NNYOXOHSSA-N nicotinamide-adenine dinucleotide Chemical compound C1=CCC(C(=O)N)=CN1[C@H]1[C@H](O)[C@H](O)[C@@H](COP(O)(=O)OP(O)(=O)OC[C@@H]2[C@H]([C@@H](O)[C@@H](O2)N2C3=NC=NC(N)=C3N=C2)O)O1 BOPGDPNILDQYTO-NNYOXOHSSA-N 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000002777 nucleoside Substances 0.000 description 1
- 150000003833 nucleoside derivatives Chemical class 0.000 description 1
- 229920001542 oligosaccharide Polymers 0.000 description 1
- 150000002482 oligosaccharides Chemical class 0.000 description 1
- 239000008057 potassium phosphate buffer Substances 0.000 description 1
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 1
- 230000006824 pyrimidine synthesis Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 229930188195 rebaudioside Natural products 0.000 description 1
- 238000003259 recombinant expression Methods 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- YWPVROCHNBYFTP-OSHKXICASA-N rubusoside Chemical compound O([C@]12C(=C)C[C@@]3(C1)CC[C@@H]1[C@@](C)(CCC[C@]1([C@@H]3CC2)C)C(=O)O[C@H]1[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O1)O)[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O YWPVROCHNBYFTP-OSHKXICASA-N 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 229930000044 secondary metabolite Natural products 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 239000012089 stop solution Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 108091035539 telomere Proteins 0.000 description 1
- 102000055501 telomere Human genes 0.000 description 1
- 229940124597 therapeutic agent Drugs 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011426 transformation method Methods 0.000 description 1
- 229940035893 uracil Drugs 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
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
- C12N9/1205—Phosphotransferases with an alcohol group as acceptor (2.7.1), e.g. protein kinases
-
- 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
- C12N9/0004—Oxidoreductases (1.)
- C12N9/0006—Oxidoreductases (1.) acting on CH-OH groups as donors (1.1)
-
- 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
- C12N9/10—Transferases (2.)
- C12N9/1048—Glycosyltransferases (2.4)
- C12N9/1051—Hexosyltransferases (2.4.1)
-
- 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
- C12N9/10—Transferases (2.)
- C12N9/12—Transferases (2.) transferring phosphorus containing groups, e.g. kinases (2.7)
- C12N9/1241—Nucleotidyltransferases (2.7.7)
-
- 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
- C12N9/90—Isomerases (5.)
-
- 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
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/26—Preparation of nitrogen-containing carbohydrates
- C12P19/28—N-glycosides
- C12P19/30—Nucleotides
- C12P19/305—Pyrimidine nucleotides
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y101/00—Oxidoreductases acting on the CH-OH group of donors (1.1)
- C12Y101/01—Oxidoreductases acting on the CH-OH group of donors (1.1) with NAD+ or NADP+ as acceptor (1.1.1)
- C12Y101/01022—UDP-glucose 6-dehydrogenase (1.1.1.22)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y207/00—Transferases transferring phosphorus-containing groups (2.7)
- C12Y207/01—Phosphotransferases with an alcohol group as acceptor (2.7.1)
- C12Y207/01002—Glucokinase (2.7.1.2)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y207/00—Transferases transferring phosphorus-containing groups (2.7)
- C12Y207/01—Phosphotransferases with an alcohol group as acceptor (2.7.1)
- C12Y207/0101—Phosphoglucokinase (2.7.1.10)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y207/00—Transferases transferring phosphorus-containing groups (2.7)
- C12Y207/07—Nucleotidyltransferases (2.7.7)
- C12Y207/07009—UTP-glucose-1-phosphate uridylyltransferase (2.7.7.9), i.e. UDP-glucose-pyrophosphorylase
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y504/00—Intramolecular transferases (5.4)
- C12Y504/02—Phosphotransferases (phosphomutases) (5.4.2)
- C12Y504/02002—Phosphoglucomutase (5.4.2.2)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y504/00—Intramolecular transferases (5.4)
- C12Y504/02—Phosphotransferases (phosphomutases) (5.4.2)
- C12Y504/02005—Phosphoglucomutase (glucose-cofactor) (5.4.2.5)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y504/00—Intramolecular transferases (5.4)
- C12Y504/02—Phosphotransferases (phosphomutases) (5.4.2)
- C12Y504/02006—Beta-phosphoglucomutase (5.4.2.6)
Abstract
嗜热酶及一锅法高效合成UDP‑葡萄糖和UDP‑葡萄糖醛酸的方法,属于生物工程及生物合成技术领域。本发明使用热稳定性更好的嗜热酶(核苷酸序列分别如SEQ ID No.1~5所示)代替常温酶催化UDP‑Glc的合成反应,并将一锅法反应体系拆分为几个分步反应,对每步反应的条件进行系统优化,最终整合各步反应最适条件的基础上设计一锅法反应条件,以达到高效合成UDP‑Glc和UDP‑GlcUA的目的。与全细胞催化相比,UDP‑Glc终产量提高了约14倍(Leloir途径)和3.5倍(非Leloir途径)。反应合成的UDP‑Glc作为底物进一步合成了药用价值更高的UDP‑葡萄糖醛酸(UDP‑GlcUA)。
Description
技术领域
本发明属于生物工程及生物合成技术领域,具体涉及一系列嗜热酶及一锅法高效合成UDP-葡萄糖和一锅法高效合成UDP-葡萄糖醛酸的方法。
背景技术
天然小分子的糖基化反应是当今糖生物学的研究热点之一,糖基化对生物体的正常生命活动具有重要意义,该反应是自然界中最普遍也是最重要的修饰作用之一,许多疾病均与蛋白质的异常糖基化相关。在糖基化反应中,糖残基可以转移至大分子上(如蛋白质和脂质等),也可以转移至小分子上(如某些特定的次级代谢产物和寡糖),这些小分子的糖基化作用通常具有深远影响,可以极大地改变被修饰分子的稳定性、溶解度和生物活性等。研究发现葡萄糖醛酸化作用可以将体内的外源或内源亲脂性化合物转变为亲水性化合物,以达到解毒的效果;此外糖基化的小分子还可用作食品添加剂、治疗剂和保健食品等。综上所述,小分子糖基化在科学研究和日常生活中均展现出广阔的应用前景。
糖基化反应通常是由糖基转移酶催化的,尿嘧啶核苷二磷酸(UDP)-葡萄糖依赖的糖基转移酶是目前应用最多的糖基转移酶之一。糖基转移酶可以将糖残基从活化后的糖基供体转移至各种受体上,UDP-葡萄糖(UDP-Glc)是糖基化反应的主要供体之一。目前,UDP-Glc已实现商品化生产,但昂贵的价格(1 g约1700元)及较差的稳定性是限制UDP-Glc依赖的糖基转移酶进一步发展的主要障碍,使糖基转移酶只能停留于实验室研究水平。探索建立高效合成UDP-Glc的方法势在必行。
目前通常采用酶法或化学法合成UDP-Glc。化学法由于立体选择性较低及过程相对复杂等因素,不适合行业的长期发展。因此,酶法合成UDP-Glc逐渐成为主流。改造细胞内代谢途径合成UDP-Glc是研究比较多的一类方法,利用代谢工程改造宿主的UDP-Glc生物合成途径,提高内源性UDP-Glc合成量,并采用全细胞反应与发酵法进行底物的糖基化修饰。专利CN 110699373A改造了大肠杆菌中嘧啶合成途径、改变碳源流量和 UDP-Glc的代谢去路,构建了UDP-Glc高产菌株,并验证了其应用的可行性,在完全避免外源性UDP-Glc使用的情况下,UDP-Glc高产大肠杆菌菌株可实现22.5 g/L甜茶苷高效合成莱鲍迪苷KA,甜茶苷的转化率达到95.7%。专利CN 109371079A以可溶淀粉为主要初始原料,将高温α-葡聚糖磷酸化酶和高温糖-1-磷酸核苷酸化酶分别在大肠杆菌中重组表达,利用表达后的菌体进行高温全细胞催化合成UDP-Glc,省去了酶纯化提取的步骤,节约了时间与成本,简化了操作步骤。但由于全细胞合成的体内代谢网络复杂,反应难操控且产物纯化难度高,产物量偏低。因此,体外一锅法(One-pot)是目前最为常用的酶法UDP-Glc合成策略。然而,现有一锅法合成UDP-Glc的反应中使用的酶均为常温酶,稳定性较差。嗜热酶的应用可以很好地解决这一问题,成为高效合成UDP-Glc的理想选择。
发明内容
本发明的目的是提供一系列嗜热酶(核苷酸序列分别如SEQ ID No.1、SEQ IDNo.2、SEQ ID No.3、SEQ ID No.4、SEQ ID No.5所示)及一锅法高效合成UDP-葡萄糖(UDP-Glc)和一锅法高效合成UDP-葡萄糖醛酸(UDP- GlcUA)的方法。本发明通过廉价的葡萄糖和麦芽糊精最终得到价值昂贵的UDP-Glc和UDP- GlcUA,且通过优化反应条件最终实现UDP-Glc和UDP- GlcUA的高效合成。
本发明使用热稳定性更好的嗜热酶代替常温酶来催化UDP-Glc的合成反应,整合各嗜热酶的最适反应条件并确定一锅法最优反应条件以达到高效合成UDP-Glc和UDP-GlcUA的目的。除此之外,本发明还引入了两种一锅法直接合成1-磷酸-葡萄糖(1-P -Glc)的方法(非Leloir途径),以期对现有的合成路线进行补充。结果显示,与全细胞(CN109371079A)催化相比,UDP-Glc终产量提高了约14倍(Leloir途径)和3.5倍(非Leloir途径)。反应合成的UDP-Glc作为底物进一步合成了药用价值更高的UDP-葡萄糖醛酸(UDP-GlcUA)。
为了达到上述目的,本发明的技术方案具体如下:
首先UDP-Glc合成的关键嗜热酶是分别从实验室保藏的嗜热菌Geobacillus stearothermophilusX1中筛选得到的嗜热葡萄糖激酶GS01513、Thermus thermophilusHB8中筛选得到的嗜热磷酸葡萄糖变位酶TTHA0353、Thermococcus onnurineusNA1中筛选得到的嗜热麦芽糊精磷酸化酶TON_0191及Thermobifida fusca YX中筛选得到的嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155,其核苷酸序列分别为SEQ ID No.1、SEQ ID No.2、SEQID No.3、SEQ ID No.4。
上述四种嗜热酶是通过DNA重组构建大肠杆菌表达菌,再利用异丙基硫代半乳糖苷(IPTG)诱导剂诱导酶表达获得的。首先,通过NCBI GenBank搜索得到来自嗜热细菌Geobacillus stearothermophilusX1的葡萄糖激酶GS01513基因(954 bp,编码317 aa,SEQID No.1)、Thermus thermophilusHB8的磷酸葡萄糖变位酶TTHA0353基因(1575 bp,编码524 aa,SEQ ID No.2)、Thermococcus onnurineusNA1的麦芽糊精磷酸化酶TON_0191基因(2502 bp,编码833 aa,SEQ ID No.3)及Thermobifida fusca YX的尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155基因(930 bp ,编码309 aa,SEQ ID No.4)的核苷酸序列,然后根据四种酶的核苷酸序列SEQ ID No.1-4设计引物,PCR扩增酶基因,并将基因与表达载体pET28a连接构建重组质粒,分别转化大肠杆菌表达宿主菌BL21(DE3)感受态细胞构建重组酶表达菌,再经诱导剂IPTG(异丙基硫代半乳糖苷)诱导重组酶表达菌表达四种嗜热酶,由于表达蛋白是细胞内可溶蛋白,最后再通过细胞超声破碎、Ni-NTA亲和层析进行分离纯化得到嗜热葡萄糖激酶GS01513、嗜热磷酸葡萄糖变位酶TTHA0353、嗜热麦芽糊精磷酸化酶TON_0191、嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155。
本发明设计了两种反应路径,通过一锅法合成UDP-Glc:
路径一是由嗜热葡萄糖激酶GS01513、嗜热磷酸葡萄糖变位酶TTHA0353和嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155催化合成得到UDP-Glc(GPUP),该一锅法反应包括三个催化过程:(i)以D-葡萄糖、UTP(尿嘧啶核苷三磷酸)为底物,嗜热葡萄糖激酶GS01513催化合成得到6-P-Glc(6-磷酸-葡萄糖);(ⅱ)以6-P-Glc为底物,嗜热磷酸葡萄糖变位酶TTHA0353催化合成得到1-P-Glc(1-磷酸-葡萄糖);(iii)以1-P-Glc和UTP为底物,嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155催化合成得到UDP-Glc并产生反应抑制副产物PPi(焦磷酸),同时嗜热无机焦磷酸酶PPase(专利申请号:202110765804.0,核苷酸序列为SEQID No.6所示)去除副产物PPi ,提高产物合成效率。
由上述四种酶催化的一锅法偶联反应(GPUP)具体实验流程如下:
将UTP和D-葡萄糖按摩尔比2:1加入到50 mM的Na2HPO4-NaOH缓冲液(pH 8.0~10.0)中使二者的终浓度分别为50~120 mM,再加入终浓度为5~10 mM的MgCl2;随后依次加入嗜热葡萄糖激酶GS01513、嗜热磷酸葡萄糖变位酶TTHA0353、嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155和嗜热无机焦磷酸酶PPase,四种酶的终浓度分别为0.3~0.6 mg/mL;最后于50~60℃下以150~200 rpm振荡反应4~6 h,沸水浴2~5 min终止反应,得到产物UDP-Glc;
路径二是由嗜热麦芽糊精磷酸化酶TON_0191、嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155催化合成得到UDP-Glc(MUP),本次一锅法反应包括两个催化过程:(i)以麦芽糊精为底物,嗜热麦芽糊精磷酸化酶TON_0191催化合成得到1-P-Glc;(ⅱ)以1-P-Glc和UTP为底物,嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155催化合成得到UDP-Glc并产生反应抑制副产物PPi(焦磷酸),同时嗜热无机焦磷酸酶PPase去除副产物PPi,提高产物合成效率。
以上述三种酶催化的一锅法偶联反应(MUP)具体实验流程如下:
将麦芽糊精和UTP溶于200 mM 的磷酸钾缓冲液(pH 7.0~7.5)中,麦芽糊精的最终质量浓度为5%,UTP的终浓度为50~120 mM;然后加入MgCl2使其终浓度为5 mM,再依次加入嗜热麦芽糊精磷酸化酶TON_0191、嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155和嗜热无机焦磷酸酶PPase,三种酶的终浓度分别为0.3~2.0 mg/mL;最后于60~70℃、150~200 rpm下振荡反应4~6 h,再加入等体积的反应终止液(2 mM PABA和14 mM SDS的混合液)终止反应,得到产物UDP-Glc。
将本发明合成的UDP-Glc作为底物,利用嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630,可进一步催化合成得到UDP-葡萄糖醛酸(UDP-GlcUA),最终构建了嗜热酶法合成UDP-Glc和UDP- GlcUA的方法。嗜热酶法合成UDP- GlcUA的方法中使用的嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630来源于嗜热菌Geobacillus stearothermophilusX1,利用基因重组技术构建大肠杆菌表达菌发酵生产,其核苷酸序列如SEQ ID NO.5所示。
上述合成UDP- GlcUA的具体方法:依次添加终浓度为 2~5 mM 的UDP-Glc、4~10mM的 烟酰胺腺嘌呤二核苷酸(NAD+)及0.2~2.0 mg/mL 的嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630至50 mM的Na2HPO4-NaH2PO4缓冲液(pH 7~8)中,然后于37℃以 150~200 rpm振荡反应1~3 h,再加入等体积反应终止液(2 mM PABA和14 mM SDS的混合液)终止反应,从而得到UDP- GlcUA。
附图说明
图1:GPUP及MUP一锅法级联反应合成UDP-Glc的薄层层析检测图;其中1为UDP-葡萄糖,2为GPUP反应,3为MUP反应,4为对照组;对照组和实验组相比不加酶,结果表明GPUP和MUP反应路径都能高效合成UDP-Glc。
图2:以UDP-Glc为底物合成UDP-GlcUA的薄层层析检测图;其中1为UDP-葡萄糖,2为实验组;结果为UV254nm 下观测的产物荧光点,结果显示嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630可以催化UDP-Glc生成UDP-GlcUA。
图3:UDP-葡萄糖(UDP-Glc)的1H NMR结果谱图;1HNMR(400MHz , D2O) δ 7.87 (d, J=8.02 Hz , 1H) , 5.89 (d , J=8.6 Hz , 1H) , 5.51 (t , J=9.92 Hz , 1H) ,4.70 (D2O) , 4.29 (s , 1H) , 4.15 (t , J=24.88 Hz , 1H) , 3.79 (t , J=13.2 Hz, 1H) , 3.71-3.66 (m , 1H) , 3.46-3.35(m , 1H),该核磁结果证明GPUP和MUP反应得到的物质是UDP-Glc。
图4:UDP-葡萄糖醛酸(UDP- GlcUA)的1H NMR结果谱图;1HNMR(400MHz,D2O) δ7.80d , J=8.14 Hz , 1H) , 5.835 (t , J=7.88 Hz , 2H) , 5.46(d , J=11.12 Hz ,1H) , 4.63 (D2O) , 4.215 (d , J=4.04 Hz , 1H) , 4.13 (s , 1H) , 3.07-4.03 (m, 1H) , 3.99 (s , 1H) , 3.97(s , 1H) , 3.63 (t , J=18.92 Hz , 1H) , 3.50 (s ,1H) , 3.43-3.37 (m , 1H) , 3.35 (t , J=9.72 Hz , 1H) ,该核磁结果证明嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630催化反应得到的物质是UDP-GlcUA。
图5:嗜热葡萄糖激酶GS01513催化合成6-P-Glc的反应时间进程曲线;横坐标为反应时间(min),纵坐标为底物的转化率(%),结果表明反应20 min达到平衡,最终葡萄糖的转化率可达95%以上。
图6: 嗜热磷酸葡萄糖变位酶TTHA0353催化合成1-P-Glc的反应时间进程曲线;横坐标为反应时间(min),纵坐标为底物的转化率(%),结果表明反应10 min达到平衡,最终6-P-Glc的转化率可达75%以上。
图7: 嗜热麦芽糊精磷酸化酶TON_0191催化合成1-P-Glc的反应时间进程曲线;横坐标为反应时间(min),纵坐标为底物的转化率(%),结果表明反应180 min达到平衡,最终1-P-Glc的转化率可达65%以上。。
图8:尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155催化合成1-P-Glc的反应时间进程曲线;横坐标为反应时间(min),纵坐标为底物的转化率(%),结果表明反应50 min达到平衡;添加无机焦磷酸酶PPase可以使转化率达到80%,较未加无机焦磷酸酶组提高1倍以上。
图9:嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630 催化合成UDP-葡萄糖醛酸的毛细管电泳曲线;由上至下四条曲线分别为UDP-Glc+PAPB(PAPB为反应终止液,具体反应见实施例3)、NAD+、实验组和对照组,其中对照组与实验组相比只是不添加酶。其中1为NAD+,2为NADH,3为UDP-Glc,4为PABA,5为UDP-GlcUA;由图显示毛细管电泳可以分离得到产物UDP-GlcUA,通过与标准品对比可以直观看出嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630催化反应得到的物质是UDP-GlcUA。
具体实施方式
实施例1:GS01513、TTHA0353、TON_0191、IM867_06155和N231_05630工程菌的构建及蛋白的表达纯化,包括以下步骤:
1. GS01513、TTHA0353 、TON_0191、IM867_06155和N231_05630基因的扩增
五种嗜热酶基因扩增的引物序列如下:
(1)嗜热葡萄糖激酶GS01513:
上游引物:GAGGGAGAATTCATGGAACAATGGTTGGTAGG,横线处为限制酶EcoR Ⅰ识别位点;
下游引物:ATATTTTACTCGAGTTAGGCGCCGATGAGCGATTTC ,横线处为限制酶Xho Ⅰ识别位点;
(2)嗜热磷酸葡萄糖变位酶TTHA0353:
上游引物:ACAATGGCCATATGGAGATCACCCGGCTC ,横线处为限制酶Nde Ⅰ识别位点;
下游引物:GAAAGCGAATTCTCAGGCGAGGGCCTTG,横线处为限制酶EcoR Ⅰ识别位点;
(3)嗜热麦芽糊精磷酸化酶TON_0191:
上游引物:TAATTGGGATCCATGGCCGACGTTGAAAC,横线处为限制酶BamH Ⅰ识别位点;
下游引物:GCGGGGGAATTCTCACTCAAAGAAACCT,横线处为限制酶EcoR Ⅰ识别位点。
4)嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155:
上游引物:ATCGTGGAATTCATGACAGATGAACAGCACT,横线处为限制酶EcoR Ⅰ识别位点;
下游引物:CGTTTCCTCGAGTTACCTGGTGGAGTCTGT,横线处为限制酶Xho Ⅰ识别位点。
5)嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630:
上游引物:TGAGGACATATGAAGATAGCGATTGCGGGA,横线处为限制酶Nde Ⅰ识别位点;
下游引物:CTAACCGAATTCTCATTCGTGATGCTCCAC,横线处为限制酶EcoR Ⅰ识别位点。
五种酶的PCR反应体系如下
表1: PCR反应体系
组分 | 体积(μL) |
基因组DNA | 1 |
10×Easy Pfu缓冲液 | 10 |
2.5 mM dNTPs | 10 |
上游引物(10 μM) | 1 |
下游引物(10 μM) | 1 |
Easy Pfu DNA聚合酶 | 2 |
无菌水(ddH2O) | 75 |
总体积 | 100 |
PCR反应条件:94 ℃,5 min;94 ℃,30 s,60 ℃,30 s,72 ℃,2.41 min,30个循环;72 ℃,10 min;4 ℃,保存。
2. 重组表达菌的构建及酶蛋白的表达
将嗜热葡萄糖激酶GS01513的PCR产物用限制酶EcoR Ⅰ和Xho Ⅰ酶切、嗜热磷酸葡萄糖变位酶TTHA0353用Nde Ⅰ和EcoR Ⅰ酶切、嗜热麦芽糊精磷酸化酶TON_0191用BamH Ⅰ和EcoR Ⅰ酶切、嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155用EcoR Ⅰ和Xho Ⅰ、嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630用Nde Ⅰ和EcoR Ⅰ酶切,载体pET28a也分别用相应的限制酶酶切。酶切体系如下:
表2:载体质粒的酶切反应体系
组分 | 体积(μL) |
10×缓冲液 | 5 |
PCR产物或pET-28a质粒 | 40 |
限制性内切酶 Ⅰ | 2.5 |
限制性内切酶 Ⅱ | 2.5 |
总体积 | 50 |
于 37 ℃孵育4 h得到酶切产物。其中,载体pET28a酶切产物继续进行去磷酸化反应。向酶切体系中依次加入5.5 μL Fast 碱性磷酸酶(AP) Buffer和0.5 μL Fast AP后继续孵育30 min得到酶切产物,随后将5 µL酶切产物与3 µL pET28a载体片段、1 µL 10×T4DNA buffer和1 µL T4 DNA Ligase混合,16 ℃连接过夜。取10 µL连接混合物转化100 µL大肠杆菌感受态细胞DH5α,筛选重组质粒。将重组质粒转化大肠杆菌感受态细胞BL21(DE3),培养至OD600为0.6-1.0时加入0.5 mM IPTG于25 ℃振荡培养过夜,诱导目标蛋白的表达。
质粒的提取、大肠杆菌感受态细胞制备及载体转化方法参照“分子克隆实验指南”(第三版,科学出版社,2002年)。
实施例2:UDP-Glc的大量合成
UDP-Glc的一锅法合成主要包括两种途径
1、以D-葡萄糖为初始底物级联一锅法(GPUP)合成UDP-Glc具体反应方程如下:
具体实验反应条件如下:
将D-葡萄糖和UTP加入50 mM Na2HPO4-NaOH缓冲液(pH 8.0)中使其终浓度达到60mM和120 mM再加入MgCl2(终浓度为6 mM)、嗜热葡萄糖激酶GS01513(终浓度为0.6 mg/mL)、嗜热磷酸葡萄糖变位酶TTHA0353(终浓度为0.3 mg/mL)、尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155(终浓度为0.3 mg/mL)和嗜热无机焦磷酸酶PPase(终浓度为0.3 mg/mL),以无酶反应体系为空白对照,于60 ℃、180 rpm振荡反应5 h后,沸水浴3 min终止反应。反应液离心(13000 rpm,10 min)后取适量上清进行产物的毛细管电泳(Capillaryelectrophoresis,CE)检测。产物UDP-Glc的产量可达29.6 mM,CN109371079A合成UDP-Glc的产量约2.1mM,与其相比的最大产量提高了约14倍。
2、以麦芽糊精为初始底物级联一锅法合成UDP-葡萄糖(MUP)的具体反应方程如下:
具体实验反应条件如下:
依次加入终浓度为5%的麦芽糊精和100 mM UTP溶于200 mM Na2HPO4-NaOH缓冲液中(pH 7.5),加入MgCl2(终浓度为5 mM),加入嗜热麦芽糊精磷酸化酶TON_0191 (终浓度为2.0 mg/mL)、尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155 (终浓度为0.6 mg/mL)和嗜热无机焦磷酸酶PPase(终浓度为 0.3 mg/mL),于60 ℃、180 rpm振荡反应5 h后,反应结束后取部分样品加入等比例反应终止液(2 mM PABA和14 mM SDS混合液),混合均匀后通过CE检测生成的UDP-Glc。结果显示终产率可达14.09%,产量为9.1mM,比专利CN 109371079A的最大产量提高了3.5倍左右。
毛细管电泳检测:UDP-Glc在254 nm处具有强紫外吸收,可通过毛细管电泳(Capillary electrophoresis,CE)对其进行定量。本发明使用来自贝克曼公司的P/ACETMMDQ高效毛细管电泳系统,配备裸熔融弹性石英毛细管和光电二极管阵列(PDA)检测器。分离过程在有效长度为50 cm(总长60 cm,内径75 μm)的毛细管中进行,CE缓冲液配制方法:50 mM 乙酸铵,1 mM EDTA,1 M NaOH调pH至9.2。电泳条件:阳极加压上样(0.5 psi,5 s),液冷控温23 ℃,PDA检测器波长设置为254 nm,于15 kV(0.1 psi辅助分离)下电泳20 min,相邻样品的检测之间均使用CE缓冲液清洗(10 psi,10 min)。
实例3:嗜热酶法合成UDP-葡萄糖醛酸
以实施例2合成的UDP-Glc为底物,使用嗜热尿苷二磷酸葡萄糖脱氢酶N231_05630催化UDP-Glc脱氢合成UDP-葡萄糖醛酸,反应体系见表3。
表3:酶法合成UDP-葡萄糖醛酸的反应体系
将终浓度5 mM UDP-Glc,5 mM NAD+加入到50 mM Na2HPO4-NaOH缓冲液中(pH 7.3)中,加入1 mg/mL的N231_05630于37℃、160rpm振荡反应1 h后,加入反应终止液(2 mM PABA和14 mM SDS混合液)混匀后进行CE检测参照实例2。结果显示产率可达84%,产量2.44 mg/mL。专利CN112608960A利用尿苷二磷酸葡萄糖脱氢酶氧化UDP-Glc生成UDP-葡萄糖醛酸的产量为1.01 mg/mL,本发明较其提高了2.4倍。
<110> 吉林大学
<120>嗜热酶及一锅法高效合成UDP-葡萄糖和UDP-葡萄糖醛酸的方法
<130> 2022.2.16
<160> 6
<170> PatentIn version 3.5
<210> 1
<211> 954
<212> DNA
<213> Geobacillus stearothermophilus X1
<221> CDS
<222> (1)..(954)
<400> 1
atg gaa caa tgg ttg gta ggc atc gat ctt ggc ggc acg acg acg aag 48
atg gcg ttt att aca gaa gac gga att att gta cac aaa tgg gaa att 96
cca aca gac acg tcc aac cgc ggc gaa cgg atc gtc gcc cat atc gcc 144
cgg tcg ttg gat gaa acg ctc gcc cgg ctt ggc gga acg aaa gaa cag 192
ctg ctc gcc atc gga atc ggc gcc ccc ggg ccg gtt cag gaa gaa aca 240
gga atg ctg tat gaa gcg gtc aat cta gga tgg aaa cac tac ccc tta 288
aaa cga cag ctc gaa gaa gag aca ggg ctg ccg gtg gcc gtc gac aat 336
gac gcg aat atc gcc gcc ctc ggc gaa atg tgg aaa ggg gcc ggg gga 384
ggg gcg cgc cat ttg ctg ttt gtg acg ctc ggc acc ggc gtt ggc ggc 432
ggc gta atc gcc aac ggg gcc atc gtg cgc ggg acg aac ggc gcc ggt 480
gga gaa atc ggc cat atg acg atg gtt gca gac ggc ggc gcg ccg tgc 528
aac tgc ggc aaa acg ggc tgt ttg gaa acg att gcg tcg gcg acc ggc 576
att gtg cgg att gcc ggc gaa aag ctg gct gcc agc gag cgt ccg agc 624
gcg ctc cgc ggc ggc gat gtc acc gcc aaa gct gtg ttt gac gcc gcc 672
aaa acg ggg gat gcg ctc gcg ctt gag gtt gtt gag gag gtg acg cgc 720
tat ctc ggt ttg gcg ttg gcg aat gcg gct aat gtg acc aat ccg gag 768
aaa att gtg atc ggc ggc ggt gtc tcg aag gcg ggg gca ctg ctc gtt 816
gag cat gtc gcc gcc cat ttc cgc cgc tat gct ttt ccg cgt gtc gcc 864
gcc gga gcg gag atc gtg ctg gca acg ctc ggc aat gac gcc gga gtc 912
atc ggc ggc gcc tgg ttg gcg aaa tcg ctc atc ggc gcc taa 954
<210> 2
<211> 1575
<212> DNA
<213> Thermus thermophilus HB8
<221> CDS
<222> (1)..(1575)
<400> 2
atg gag atc acc cgg ctc ctc acc ctc tac tac gag gcg acc cca gac 48
ccc caa aac ccc ttg gag ggg gtc cgc ttc ggc acg agc ggc cac cgg 96
gga agc agc ctc aag gcc act ttc acc gag gcc cac gtc ctg gcc atc 144
gcc cag gcc atc gcc gag ctc cgg cca agc ttc ggg gcc acg ggg ccc 192
ctc ttc ctg gcc aag gac acc cac gcc ctc tcc gag ccc gcc tgg gcc 240
acg gcc ctc tcc gtc ttc gcc gcc cac gga ata gag gtc cgc gtg gag 288
gcg gac ggg gac tac acc ccc acg ccc ctc gtc tcc ctg gcc atc ctg 336
gag cac aac gcc cac cac gag gcc aag gcc gat ggc gtc ctc ctc acc 384
ccg agc cac aac ccc ccg gag gac ggc ggc ttc aag tac aac ccc ccc 432
acg ggg ggt ccg gcg aac gcc cgc atc acc cgg gcc ata gag gag agg 480
gcc aac gcc ctc ctc cag gag ggc ctc aag ggc gtg aag cgc ctc ccc 528
ctc cgg gag gcc ctg gcc cgg gcc aag cct ttt gac tac gcg ggg ctt 576
tac gtg gaa aag gtg gcg gag gcg gtg gac ctc gag gcc atc cgg gcc 624
tcg ggc ctt agg atc ggg gtg gac ccc tta ggg ggg gcg agc cta agg 672
gtg tgg gag cgg ctc gcc gag tcc cac ggg ctc ccc ctg gag gtg gtg 720
aac ccc acc cta gac ccc acc ttc cgc ttc atg ccc aag gac cac gac 768
ggc aag atc cgc atg gac tgc tcc agc ccc tac gcc atg gcg ggc ctc 816
ctc gcc ctc aag gac cgc ttt gac ctc gcc atc ggc aac gac ccc gac 864
gcc gac cgc cac ggg atc gtc acc ccg cgg ggc ctg atg aac ccc aac 912
cac tac ctg gcc gcc gcc ctc cac cac ctc tac acc acc cgg tcc tgg 960
ccc ggg gcc aag gtg ggg aag acg gcg gtg acc agc gcc ctc ctg gac 1008
cgg gtg gcc cag gcc ctg ggg cgg gag gtg tac gag acc ccc gtg ggg 1056
ttc aag cac ttc gtg gcg ggg ctc ctc gag ggg tgg ctc ggc ttc gcc 1104
ggg gag gag agc gcc ggg gca agc ttc ctc cgc ttt gac ggg agg ccc 1152
ttc tcc acc gac aaa gac ggg atc ctc atg ggc ctc ctc gcc gcc gag 1200
ctc atg gcc aag cga ggc cag gcc ccg gac gcc ctt tac gag gcc ctg 1248
gcg gaa aag ctg ggc cgc ccc tac tac gcc cgc aag gac ctc ccc gtc 1296
tcc ccc gag gcc aag gcc cgc ctg gcc cgg ctc tcc gcc aag gag gtc 1344
cat ccc tcc acc ctc gcc ggg gag ccc gtc ctc cag gtc ctg gac cgg 1392
gcc acg ggc aac ggg gag cct ctg ggc ggg atc aag gtg gtg gcg gcc 1440
aac gcc tgg ttc gcc gtg cgc cca agc ggc acc gag gac gtg gcc aag 1488
gtc tac gcg gaa agc ttc ctc ggg gaa gcc cac ctg gaa agg gtc ctg 1536
gag gaa gcc acc gcc ctc ctc cac aag gcc ctc gcc tga 1575
<210> 3
<211> 2502
<212> DNA
<213> Thermococcus onnurineus NA1
<221> CDS
<222> (1)..(2502)
<400> 3
atg gcc gac gtt gaa act ccc acc cac gat tta atc agg gag aag ctt 48
ccc cat ccc atc aag gat ttg gct gat ctg gcc tac aac tac tgg tgg 96
agc tgg aac agg agg gca acg agg ctc tgg gag tat att gac ccg gta 144
cac tgg agg gaa cac aag aat ccg gtt aag ctc ctt ctc gac gtt tcc 192
gag gag cgc ctc gag gag ctt ctg aag gac gac gac ttc atg aac ctc 240
tac gag ctc gtt atg gaa caa ttc cgg gat tat atg aat cca gat tcg 288
acc tgg ttc tca acc aac tac ccc aag tgg gac aag ccc ata gtg tat 336
ctc tgc atg gag tac ggc ata agc agg act ctg ccc ata tac tct ggt 384
ggt ctg ggg ata ctc gct ggt gac cac gtg aag acc gcc agt gac ctt 432
ggc ctg cct ttc ata gca ata ggt ctg ctc tat aag cac ggc tac ttc 480
aag cag gag ata gac aga gac gga aga cag atc gag atc ttc cca gag 528
tac agg cca gag gag atg ccg ata aaa ccg gtt ctc ggg aag gat gga 576
aag cca ctc ctt ata gag gtc ccc ata gag gac aga atc gtt tac gcg 624
agg gcc tcg gag gtt gag gtt gga agg gtg aag ata tat cta ctg gac 672
acc gac gtt ccc gag aac agc gcg gac gac aga acc ata tgc gac tac 720
ctc tac aat gcc gag ata gac aag cgc ata aag cag gag ata ctt cta 768
gga atc ggt gga atg cgc ctg ctt aaa gct ttg ggc att gaa ccc ggc 816
gtt gtc cac ctc aac gag ggg cat cca gcc ttt gct aac ctt cag agg 864
ata gcc tgg tac atg gat gaa ggg ttg acc ttt acc gag gcg ttg agt 912
att gtc aga ggg act acg gtt ttc acc acg cac acc cca gtt cca gcg 960
ggc cac gat cgc ttc cca att gag gag gtc agg aag agg ctc gcc aag 1008
ttc ctt gag gat aag gac gag aga ctc ctg gag ctc ggc cgt gag agg 1056
gat gaa atc aac atg acc tta ctg gcc ata aga act tcc agc tac gtc 1104
aac ggc gtc agt aag ctc cat gcc gag gta agc aag cgc atg tgg cag 1152
aat ctt tgg ccc gga gtt ccg ctg gat gag ata ccc atc gag ggc atc 1200
acc aac ggc gta cac acc atg acc tgg gtt cac agc gag atg aga aag 1248
ctc ttt gac cgc tat ctc gga aag gca tgg cgc gag cac acg aac atc 1296
gag ggt ctg tgg tac gcc att gag agg att ccc gat gaa gag ctc tgg 1344
gag gcc cat ctt aag gcc aag agg gag ttc ata gag cta ctg aag agg 1392
aag att agg gcg agg aac gag agg ctt gga ata gat gat ccc ctg cca 1440
gag ata gac gag aac gcg ctc atc ata ggc ttt gcc cgg cgc ttc gcg 1488
acc tac aag cgc gcc acc cta ctc ttt acg gat att gaa agg ctc aag 1536
aga ctt ctg aac aac cca gag agg cca gtc tac ata gtc ttt ggt gga 1584
aag gcc cat cca atg gac gag gcc ggc aaa gag ttc cta aag aaa gtc 1632
tac gag gcc tct cag atg ccc gag ttc agg ggc aag ata ttc gtc ctt 1680
gag aac tac gat atg gga agt gca agg ctc atg gtg gcc gga gtt gac 1728
ctc tgg ctc aac aat ccg cgc agg ccg atg gaa gct agc gga acg agt 1776
gga atg aaa gcc ggg ctg aac gga gtg ctc aac gcg agc atc tac gag 1824
ggc tgg tgg gtg gaa ggc tac aac ggc agg aac ggg tgg atc att gga 1872
gag gag agt acg gag ccc gag acc gaa gcc gac gac ata aag gac gca 1920
gag agc ctc tac aat ctg ctg gag agg gaa ata atc cca acc tac tac 1968
ggc aac cgc ggg aaa tgg att tac atg atg aag gag agc atc aag agc 2016
ata gcc ccg cgc ttc agc act cac agg atg gtc aag gaa tac atg gat 2064
cgt ttc tat tcc aag gct atg agt aac tac atc tgg ctc acg agg ggt 2112
aac tac gcc ggt gcc aag gag atg gcc gca tgg aaa gac cgc gtt atc 2160
agt gca tgg aac aac gtg agc atc gaa agt gta gcc ata aaa gat gga 2208
agc aga ctt gag atc ctc gtc tac ctc gat gaa ctt aag ccc gaa gac 2256
gtc cgt ctt gag ctc tac tac ggc gtc cat gcc gag gag caa cgc ata 2304
gag aaa ccg cat atc gtt gag ctg agg cat cca aag gag ctc ggg ggt 2352
ggg agg tgg ctc tac acc tat gag gga agt gct ctg agg cac ctc ggt 2400
aat tcc tgc tgg aac tat gcg ata agg att tac ccc cac cac gaa aag 2448
cta ccc cac cgg ttc ttg ctc gga ttg gtg aag tgg aga ggt ttc ttt 2496
gag tga 2502
<210> 4
<211> 930
<212> DNA
<213> Thermobifida fusca YX
<221> CDS
<222> (1)..(930)
<400> 4
atg aca gat gaa cag cac tct gta act ccg gtg acc aaa gcg gtc att 48
ccc gtg gca gga ctg ggg acg aga ttc ctc ccc gcc act aag tcc acg 96
ccc aaa gag atg ctg ccg atc gtc gac aag ccg gcg atc cag tac gta 144
gtg gag gaa gcg gtc tcc gcc ggg ctc aac gac atc ctc atg atc acc 192
ggg cgc aac aag cgt tcc atc gag gac cac ttc gac cgg gcc tac gaa 240
ctg gag gag gcc ctc cgc gcc aaa ggt gac atc gaa cgg ctc aac gcg 288
gtg cgc cac ccc agt gac ctc gcc caa ctg cac tac gtg cgg caa ggg 336
gaa ccg cgc ggc ctg ggg cac gcg gtg ctg tgc ggc gcc gcc cac gtg 384
ggc aac gag ccg ttc gcg gtc ctg ctc ggc gac gac ctc atc ggc gcg 432
cgg gaa acc ctg ctg cag cgg atg atc gag gtc cgc cag acc tac ggg 480
ggc agc gtc atc gcc ctg atg gag gtg gaa ccc gac cag gtc tcg ctg 528
tac ggg tgc gcc gcg atc gaa ccc acc gac gag ccc gac gtc gtg acc 576
gtc acc gac ctt gtc gag aag cct ccg gcg gac cag gcg ccc agc cgc 624
tgg gcg atc atc ggc cgc tac atc tgc gac ccg gag atc ttc gaa gtg 672
ctg cgc aag acc cca ccg gga cgc ggc ggg gag atc cag ttg acc gac 720
gcg ctc cgg gaa ctc gcc cag cgc agc tcc aat ggg gga gga agg gtc 768
cac ggt gtg ctt ttc cgc ggt caa cgc ttc gat acc ggg aac aag ctt 816
gac tac ctt cgc acc gtg gtg gag ttc gcc tgt gag agt ccg gat ctt 864
gcc aag gag ttc gtg ccg tgg ctg cgt gac ttc ctg acg agg tat gcg 912
aca gac tcc acc agg taa 930
<210> 5
<211> 1341
<212> DNA
<213> Geobacillus stearothermophilus X1
<221> CDS
<222> (1)..(1341)
<400> 5
gtg aag ata gcg att gcg gga acg gga tat gtt gga ctt gtg acc gcg 48
gct tgt ctg gcc gat aaa ggg cat gat gtg aca tgc gtc gat gtg aac 96
gaa gag aaa att cgc cta tta aat gaa ggg atc gtc ccg att tat gag 144
ccg ggg ctt gac tcg ctt att cag cga aac ggc gtt cgc ctt cgc ttt 192
acg acc aac gat gtg gaa gcg tat caa cgg gcg gaa gtg atc atg atc 240
gcc gtc ggc acg ccg ccg cag ccg gac ggg tct gtg cgg ctt gat gat 288
gta tgg ggc gca ttg cga cgc atc gcc agg gcg gcc gaa cgc gat tgc 336
ctt gtc gtt atc aag tcg acc gtg ccc gtc ggc act ggc gat gaa gcc 384
gcc cgt ttt ttg gcg gaa aac gga cgg ccg gag gtg aaa ttc gac gtc 432
gta tcc aac ccg gag ttt ttg tcg caa gga acg gca gtg cgc gat aca 480
ctg cag gcg ccg cgc att gta ttg gga gtg gat tcg gac cgg gct gaa 528
cgg gtg atg aag gag ctg tac gcc ccg ttt gcc ctc ccg tac gtc gtg 576
acg gac cgg aga agc gct gag atg atc aag tat gcg gcc aat gtg ttt 624
ttg gcg ttg aaa att tcg tac atc aac gag atc gcc aat gta tgc gag 672
ttg gta ggc gct gat att cag gcg gtg gcg gaa gga atc ggc atg gat 720
ccg cgc atc ggc cgc cgc ttt ttg cgc gcc ggc gtc ggg tat ggc ggc 768
tct tgc ctg ccg aaa gat gca aat gcc ctc tat tcc ttg gcg gct tcc 816
cac ggc tat tcg ctc aaa acg gta tgg gcg gcg atc gac gtc aat gag 864
aaa caa aaa tgg aaa ctt ctt gac aaa gcg cgt ctg cac att ggg gat 912
ttc cgc aac cgg acg gtc gcc gtg ctt ggc gcc gca ttc aag ccg ggc 960
acc gat gat gtg cgc gag tct cct gcc ttg gcg aac atc gag cgg ctc 1008
att gcc gaa gga gca gtc gtg cgc gtc tgg gac cca gcc gct ctc gaa 1056
cat gtc gtc cgc cgt ttt ggc gat gcg gtt gtt tgt tgc gag acg atc 1104
gag gaa gcc att cgc ggc gcg gat gtt tgt ttc att ttc acc gaa tgg 1152
ccg gct gtg ctg caa ttt gac ctt cac cgt tac aag acg ctg atg aaa 1200
aca ccg ctt gtg gtg gat ggg cgg aat tgc tac gac ccg aag gcg gcc 1248
gaa gcc gcc ggc tta atc tac gag tcg att ggg cgg ccg gtg gtg gtc 1296
gga tgg caa agc gcg ata aag gaa acg gtg gag cat cac gaa tga 1341
<210> 6
<211> 537
<212> DNA
<213> Thermococcus onnurineus
<400> 6
atgaacccgt tccacgagct tgagcccgga ccggaggttc cagaggtcgt ttacgctctt 60
atagagattc cgaagggaag caggaacaag tacgagctcg acaagaagac cggccttctc 120
aagcttgata gagtgctcta cagcccgttc ttctacccgg ttgactacgg aatcatcccg 180
cagacctggt acgacgacgg cgaccccttt gacataatgg tcatcatgcg cgagccggtc 240
tacccgctca ccatcgtcga ggccaggccg ataggcatca tgaagatgga ggacagcgga 300
gacaaagact ggaaggttct cgccgttccc gtcgaggatc cgtacttcaa tgactggaag 360
gacatcgacg acgttccgaa ggccttcctt gacgagatag cccacttctt ccagaggtac 420
aaggagctcc agggcaaagt caccaccgtc gaaggctggg gcaccgccga ggaggccaag 480
agggaaatcc tcagggccat cgagatgtac aaagagaagt tcggtaagaa ggagtga 537
Claims (1)
1.一种嗜热酶一锅法高效合成UDP-葡萄糖的方法,其特征在于:将UTP和D-葡萄糖按摩尔比1:1加入到50 mM 、pH 8.0~10.0的Na2HPO4-NaOH缓冲液中使二者的终浓度分别为50~120 mM,再加入终浓度为5~10 mM的MgCl2;随后依次加入嗜热葡萄糖激酶GS01513、嗜热磷酸葡萄糖变位酶TTHA0353、嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155和嗜热无机焦磷酸酶PPase,四种酶的终浓度分别为0.3~0.6 mg/mL;最后于50~60℃下以150~200 rpm振荡反应4~6 h,沸水浴2~5 min终止反应,得到产物UDP-葡萄糖;其中,UTP为尿嘧啶核苷二磷酸,嗜热葡萄糖激酶GS01513的核苷酸序列如SEQ ID No.1所示,嗜热磷酸葡萄糖变位酶TTHA0353的核苷酸序列如SEQ ID No.2所示,嗜热尿苷二磷酸葡萄糖焦磷酸化酶IM867_06155的核苷酸序列如SEQ ID No.4所示,嗜热无机焦磷酸酶Ppase的核苷酸序列如SEQ IDNo.6所示。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210140823.9A CN114507649B (zh) | 2022-02-16 | 2022-02-16 | 嗜热酶及一锅法高效合成udp-葡萄糖和udp-葡萄糖醛酸的方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210140823.9A CN114507649B (zh) | 2022-02-16 | 2022-02-16 | 嗜热酶及一锅法高效合成udp-葡萄糖和udp-葡萄糖醛酸的方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114507649A CN114507649A (zh) | 2022-05-17 |
CN114507649B true CN114507649B (zh) | 2023-11-21 |
Family
ID=81551698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210140823.9A Active CN114507649B (zh) | 2022-02-16 | 2022-02-16 | 嗜热酶及一锅法高效合成udp-葡萄糖和udp-葡萄糖醛酸的方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114507649B (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113481180A (zh) * | 2021-07-05 | 2021-10-08 | 吉林大学 | 碱性嗜热无机焦磷酸酶及其在增强聚合酶链式反应和合成udp-半乳糖反应中的应用 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003274948A (ja) * | 2002-03-22 | 2003-09-30 | Kyowa Hakko Kogyo Co Ltd | Udp−グルクロン酸の製造法 |
CN104561195A (zh) * | 2013-10-22 | 2015-04-29 | 上海兆维科技发展有限公司 | 一种尿苷二磷酸葡萄糖的制备方法 |
CN106834249A (zh) * | 2017-01-10 | 2017-06-13 | 广州海力特生物科技有限公司 | 一种改造的热稳定无机焦磷酸酶 |
CN109371079A (zh) * | 2018-11-12 | 2019-02-22 | 安徽禾庚生物技术有限公司 | 一种尿苷二磷酸葡萄糖及尿苷二磷酸葡萄糖醛酸的生物合成方法 |
CN110846361A (zh) * | 2019-12-04 | 2020-02-28 | 美亚药业海安有限公司 | 一种固定化酶法制备二磷酸尿苷葡萄糖的方法 |
CN112608960A (zh) * | 2020-12-30 | 2021-04-06 | 江南大学 | 一种尿苷二磷酸葡萄糖醛酸的制备方法 |
CN113265434A (zh) * | 2021-05-19 | 2021-08-17 | 吉林大学 | 一种合成udp-半乳糖及合成半乳糖基化合物的方法 |
CN113481180A (zh) * | 2021-07-05 | 2021-10-08 | 吉林大学 | 碱性嗜热无机焦磷酸酶及其在增强聚合酶链式反应和合成udp-半乳糖反应中的应用 |
WO2021219463A1 (de) * | 2020-04-28 | 2021-11-04 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen | Enzymkaskaden auf basis von saccharose synthase und pyrophosphorylase zur umsetzung von adp zu atp |
WO2022034080A1 (en) * | 2020-08-10 | 2022-02-17 | Inbiose N.V. | Cellular production of sialylated di- and/or oligosaccharides |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002530087A (ja) * | 1998-11-18 | 2002-09-17 | ネオーズ テクノロジーズ, インコーポレイテッド | オリゴ糖の安価な産生 |
CA2852487C (en) * | 2008-11-11 | 2017-01-31 | Alimentary Health Limited | Bifidobacterium longum strain ah1714 |
KR20170068303A (ko) * | 2015-12-09 | 2017-06-19 | 삼성전자주식회사 | 프로모터 영역을 포함하는 분리된 폴리뉴클레오티드, 그를 포함하는 숙주 세포 및 상기 숙주 세포를 이용하여 목적 유전자를 발현시키는 방법 |
-
2022
- 2022-02-16 CN CN202210140823.9A patent/CN114507649B/zh active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003274948A (ja) * | 2002-03-22 | 2003-09-30 | Kyowa Hakko Kogyo Co Ltd | Udp−グルクロン酸の製造法 |
CN104561195A (zh) * | 2013-10-22 | 2015-04-29 | 上海兆维科技发展有限公司 | 一种尿苷二磷酸葡萄糖的制备方法 |
CN106834249A (zh) * | 2017-01-10 | 2017-06-13 | 广州海力特生物科技有限公司 | 一种改造的热稳定无机焦磷酸酶 |
CN109371079A (zh) * | 2018-11-12 | 2019-02-22 | 安徽禾庚生物技术有限公司 | 一种尿苷二磷酸葡萄糖及尿苷二磷酸葡萄糖醛酸的生物合成方法 |
CN110846361A (zh) * | 2019-12-04 | 2020-02-28 | 美亚药业海安有限公司 | 一种固定化酶法制备二磷酸尿苷葡萄糖的方法 |
WO2021219463A1 (de) * | 2020-04-28 | 2021-11-04 | Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen | Enzymkaskaden auf basis von saccharose synthase und pyrophosphorylase zur umsetzung von adp zu atp |
WO2022034080A1 (en) * | 2020-08-10 | 2022-02-17 | Inbiose N.V. | Cellular production of sialylated di- and/or oligosaccharides |
CN112608960A (zh) * | 2020-12-30 | 2021-04-06 | 江南大学 | 一种尿苷二磷酸葡萄糖醛酸的制备方法 |
CN113265434A (zh) * | 2021-05-19 | 2021-08-17 | 吉林大学 | 一种合成udp-半乳糖及合成半乳糖基化合物的方法 |
CN113481180A (zh) * | 2021-07-05 | 2021-10-08 | 吉林大学 | 碱性嗜热无机焦磷酸酶及其在增强聚合酶链式反应和合成udp-半乳糖反应中的应用 |
Non-Patent Citations (6)
Title |
---|
Bioactive Mushroom Polysaccharides: A Review on Monosaccharide Composition, Biosynthesis and Regulation;Wang Q等;Molecules;第22卷(第6期);955 * |
Catalytic Mechanism and Allosteric Regulation of UDP-Glucose Pyrophosphorylase from Leishmania major;Führing, J等;ACS CATALYSIS;第3卷(第12期);2976-2985 * |
Efficient biosynthesis of uridine diphosphate glucose from maltodextrin by multiple enzymes immobilized on magnetic nanoparticles;Dong Q等;Carbohydr Res;第345卷;摘要,第1624页左栏第1段 * |
Thermobifida fusca strain UPMC 901 chromosome, complete genome;Mohd Zanudin,M.H.等;GenBank Dtabase;Accession No. CP063232.1 * |
Thermococcus onnurineus NA1, complete genome;Lee,H.S.等;GenBank Dtabase;Accession No.CP000855.1 * |
以纤维二糖为底物利用重组大肠杆菌合成海藻糖;李新等;食品科学;第40卷;180-186 * |
Also Published As
Publication number | Publication date |
---|---|
CN114507649A (zh) | 2022-05-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101185788B1 (ko) | 락토-n-비오스i 또는 갈락토-n-비오스의 제조방법 | |
JP2015529461A5 (zh) | ||
CN112159831B (zh) | 一种制备烟酰胺单核苷酸的方法 | |
JP4505011B2 (ja) | 3’−ホスホアデノシン−5’−ホスホ硫酸の酵素合成法 | |
CN110699373B (zh) | 尿苷二磷酸葡萄糖高产菌株及其应用 | |
CN113265434B (zh) | 一种合成udp-半乳糖及合成半乳糖基化合物的方法 | |
CN114507649B (zh) | 嗜热酶及一锅法高效合成udp-葡萄糖和udp-葡萄糖醛酸的方法 | |
CN108018252B (zh) | 一种中间体2’-脱氧鸟苷的制备方法 | |
Taran et al. | Enzymatic transglycosylation of natural and modified nucleosides by immobilized thermostable nucleoside phosphorylases from Geobacillus stearothermophilus | |
JP2000295996A5 (zh) | ||
CN106222211B (zh) | 1,6-二磷酸果糖的制备方法 | |
KR100922085B1 (ko) | Cmp-n-아세틸뉴라민산의 제조 방법 | |
CN113913481B (zh) | 甘露糖的生物制备方法 | |
CN115851855A (zh) | 酶催化合成嘌呤核苷的方法及组合物 | |
JP3833584B2 (ja) | Cmp−n−アセチルノイラミン酸の製造法 | |
JP5068956B2 (ja) | デオキシリボヌクレオシド一リン酸からのデオキシリボヌクレオシド三リン酸の製造方法 | |
EP1233072B1 (en) | Novel use of uridine diphosphate glucose 4-epimerase | |
CN105907816A (zh) | 一种酶法生产大元环糊精的方法 | |
CN117051049B (zh) | 一种d-手性肌醇的制备方法 | |
JPWO2005030974A1 (ja) | Cmp−n−アセチルノイラミン酸の製造法 | |
CN112391427B (zh) | 一种利用NsGfo氧化还原酶催化核苷合成阿糖核苷的方法 | |
CN116925993B (zh) | 用于酶催化生产胞苷酸的基因工程改造菌株和方法 | |
CN117587086B (zh) | 一种制备n1-甲基假尿苷三磷酸的方法 | |
CN108795919B (zh) | 一种催化制备udp-鼠李糖的融合酶及其应用 | |
CN116479074A (zh) | 一种由GDP-Mannose合成稀有糖类核苷酸的方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |