CN112746067A - 用于制备d-鸟氨酸的赖氨酸脱羧酶突变体 - Google Patents
用于制备d-鸟氨酸的赖氨酸脱羧酶突变体 Download PDFInfo
- Publication number
- CN112746067A CN112746067A CN202110102476.6A CN202110102476A CN112746067A CN 112746067 A CN112746067 A CN 112746067A CN 202110102476 A CN202110102476 A CN 202110102476A CN 112746067 A CN112746067 A CN 112746067A
- Authority
- CN
- China
- Prior art keywords
- ala
- leu
- gly
- asp
- val
- 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.)
- Granted
Links
- AHLPHDHHMVZTML-SCSAIBSYSA-N D-Ornithine Chemical compound NCCC[C@@H](N)C(O)=O AHLPHDHHMVZTML-SCSAIBSYSA-N 0.000 title claims abstract description 22
- 108010048581 Lysine decarboxylase Proteins 0.000 title description 11
- KDXKERNSBIXSRK-YFKPBYRVSA-N L-lysine Chemical compound NCCCC[C@H](N)C(O)=O KDXKERNSBIXSRK-YFKPBYRVSA-N 0.000 claims abstract description 76
- 239000004472 Lysine Substances 0.000 claims abstract description 42
- 235000019766 L-Lysine Nutrition 0.000 claims abstract description 37
- AHLPHDHHMVZTML-BYPYZUCNSA-N L-Ornithine Chemical compound NCCC[C@H](N)C(O)=O AHLPHDHHMVZTML-BYPYZUCNSA-N 0.000 claims abstract description 29
- AHLPHDHHMVZTML-UHFFFAOYSA-N Orn-delta-NH2 Natural products NCCCC(N)C(O)=O AHLPHDHHMVZTML-UHFFFAOYSA-N 0.000 claims abstract description 29
- 150000001413 amino acids Chemical group 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 15
- 229960003104 ornithine Drugs 0.000 claims abstract description 15
- 238000006114 decarboxylation reaction Methods 0.000 claims abstract description 9
- 239000013612 plasmid Substances 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 108090000623 proteins and genes Proteins 0.000 claims description 24
- 244000005700 microbiome Species 0.000 claims description 21
- 241000588724 Escherichia coli Species 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 9
- 244000063299 Bacillus subtilis Species 0.000 claims description 5
- 235000014469 Bacillus subtilis Nutrition 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 241000235058 Komagataella pastoris Species 0.000 claims description 4
- 239000002773 nucleotide Substances 0.000 claims description 4
- 125000003729 nucleotide group Chemical group 0.000 claims description 4
- 241001198387 Escherichia coli BL21(DE3) Species 0.000 claims description 2
- LOKCTEFSRHRXRJ-UHFFFAOYSA-I dipotassium trisodium dihydrogen phosphate hydrogen phosphate dichloride Chemical group P(=O)(O)(O)[O-].[K+].P(=O)(O)([O-])[O-].[Na+].[Na+].[Cl-].[K+].[Cl-].[Na+] LOKCTEFSRHRXRJ-UHFFFAOYSA-I 0.000 claims 1
- 239000002953 phosphate buffered saline Substances 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 2
- UTJLXEIPEHZYQJ-UHFFFAOYSA-N Ornithine Natural products OC(=O)C(C)CCCN UTJLXEIPEHZYQJ-UHFFFAOYSA-N 0.000 abstract 1
- 102000004190 Enzymes Human genes 0.000 description 36
- 108090000790 Enzymes Proteins 0.000 description 36
- 108090000489 Carboxy-Lyases Proteins 0.000 description 27
- 102000004031 Carboxy-Lyases Human genes 0.000 description 27
- 210000004027 cell Anatomy 0.000 description 16
- 230000000694 effects Effects 0.000 description 15
- 235000001014 amino acid Nutrition 0.000 description 9
- 230000035772 mutation Effects 0.000 description 9
- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 8
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 description 8
- NGVDGCNFYWLIFO-UHFFFAOYSA-N pyridoxal 5'-phosphate Chemical compound CC1=NC=C(COP(O)(O)=O)C(C=O)=C1O NGVDGCNFYWLIFO-UHFFFAOYSA-N 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 7
- 238000012216 screening Methods 0.000 description 7
- 108020004705 Codon Proteins 0.000 description 6
- XSLXHSYIVPGEER-KZVJFYERSA-N Thr-Ala-Val Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](C)C(=O)N[C@@H](C(C)C)C(O)=O XSLXHSYIVPGEER-KZVJFYERSA-N 0.000 description 6
- IEZVHOULSUULHD-XGEHTFHBSA-N Thr-Ser-Val Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CO)C(=O)N[C@@H](C(C)C)C(O)=O IEZVHOULSUULHD-XGEHTFHBSA-N 0.000 description 6
- AZSHAZJLOZQYAY-FXQIFTODSA-N Val-Ala-Ser Chemical compound CC(C)[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@@H](CO)C(O)=O AZSHAZJLOZQYAY-FXQIFTODSA-N 0.000 description 6
- 108010079547 glutamylmethionine Proteins 0.000 description 6
- 239000002609 medium Substances 0.000 description 6
- XCVRVWZTXPCYJT-BIIVOSGPSA-N Ala-Asn-Pro Chemical compound C[C@@H](C(=O)N[C@@H](CC(=O)N)C(=O)N1CCC[C@@H]1C(=O)O)N XCVRVWZTXPCYJT-BIIVOSGPSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 235000018977 lysine Nutrition 0.000 description 5
- 239000006228 supernatant Substances 0.000 description 5
- GIKOVDMXBAFXDF-NHCYSSNCSA-N Asp-Val-Leu Chemical compound [H]N[C@@H](CC(O)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC(C)C)C(O)=O GIKOVDMXBAFXDF-NHCYSSNCSA-N 0.000 description 4
- 108020004414 DNA Proteins 0.000 description 4
- 102000004316 Oxidoreductases Human genes 0.000 description 4
- 108090000854 Oxidoreductases Proteins 0.000 description 4
- 102000003992 Peroxidases Human genes 0.000 description 4
- 239000005700 Putrescine Substances 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- XKUKSGPZAADMRA-UHFFFAOYSA-N glycyl-glycyl-glycine Natural products NCC(=O)NCC(=O)NCC(O)=O XKUKSGPZAADMRA-UHFFFAOYSA-N 0.000 description 4
- 108040007629 peroxidase activity proteins Proteins 0.000 description 4
- 108010070409 phenylalanyl-glycyl-glycine Proteins 0.000 description 4
- 239000008057 potassium phosphate buffer Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 235000007682 pyridoxal 5'-phosphate Nutrition 0.000 description 4
- 239000011589 pyridoxal 5'-phosphate Substances 0.000 description 4
- 229960001327 pyridoxal phosphate Drugs 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- HHGYNJRJIINWAK-FXQIFTODSA-N Ala-Ala-Arg Chemical compound C[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@H](C(O)=O)CCCN=C(N)N HHGYNJRJIINWAK-FXQIFTODSA-N 0.000 description 3
- VBDMWOKJZDCFJM-FXQIFTODSA-N Ala-Ala-Met Chemical compound CSCC[C@@H](C(O)=O)NC(=O)[C@H](C)NC(=O)[C@H](C)N VBDMWOKJZDCFJM-FXQIFTODSA-N 0.000 description 3
- BEMGNWZECGIJOI-WDSKDSINSA-N Ala-Gly-Glu Chemical compound [H]N[C@@H](C)C(=O)NCC(=O)N[C@@H](CCC(O)=O)C(O)=O BEMGNWZECGIJOI-WDSKDSINSA-N 0.000 description 3
- QUIGLPSHIFPEOV-CIUDSAMLSA-N Ala-Lys-Ala Chemical compound [H]N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](C)C(O)=O QUIGLPSHIFPEOV-CIUDSAMLSA-N 0.000 description 3
- SUHLZMHFRALVSY-YUMQZZPRSA-N Ala-Lys-Gly Chemical compound NCCCC[C@H](NC(=O)[C@@H](N)C)C(=O)NCC(O)=O SUHLZMHFRALVSY-YUMQZZPRSA-N 0.000 description 3
- YHBDGLZYNIARKJ-GUBZILKMSA-N Ala-Pro-Val Chemical compound CC(C)[C@@H](C(O)=O)NC(=O)[C@@H]1CCCN1C(=O)[C@H](C)N YHBDGLZYNIARKJ-GUBZILKMSA-N 0.000 description 3
- BGGAIXWIZCIFSG-XDTLVQLUSA-N Ala-Tyr-Glu Chemical compound [H]N[C@@H](C)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(=O)N[C@@H](CCC(O)=O)C(O)=O BGGAIXWIZCIFSG-XDTLVQLUSA-N 0.000 description 3
- NVCIXQYNWYTLDO-IHRRRGAJSA-N Arg-His-Leu Chemical compound CC(C)C[C@@H](C(=O)O)NC(=O)[C@H](CC1=CN=CN1)NC(=O)[C@H](CCCN=C(N)N)N NVCIXQYNWYTLDO-IHRRRGAJSA-N 0.000 description 3
- GNYUVVJYGJFKHN-RVMXOQNASA-N Arg-Ile-Pro Chemical compound CC[C@H](C)[C@@H](C(=O)N1CCC[C@@H]1C(=O)O)NC(=O)[C@H](CCCN=C(N)N)N GNYUVVJYGJFKHN-RVMXOQNASA-N 0.000 description 3
- IIAXFBUTKIDDIP-ULQDDVLXSA-N Arg-Leu-Phe Chemical compound [H]N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC1=CC=CC=C1)C(O)=O IIAXFBUTKIDDIP-ULQDDVLXSA-N 0.000 description 3
- YTMKMRSYXHBGER-IHRRRGAJSA-N Arg-Phe-Asn Chemical compound C1=CC=C(C=C1)C[C@@H](C(=O)N[C@@H](CC(=O)N)C(=O)O)NC(=O)[C@H](CCCN=C(N)N)N YTMKMRSYXHBGER-IHRRRGAJSA-N 0.000 description 3
- NCFJQJRLQJEECD-NHCYSSNCSA-N Asn-Leu-Val Chemical compound [H]N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(O)=O NCFJQJRLQJEECD-NHCYSSNCSA-N 0.000 description 3
- KSZHWTRZPOTIGY-AVGNSLFASA-N Asn-Tyr-Gln Chemical compound C1=CC(=CC=C1C[C@@H](C(=O)N[C@@H](CCC(=O)N)C(=O)O)NC(=O)[C@H](CC(=O)N)N)O KSZHWTRZPOTIGY-AVGNSLFASA-N 0.000 description 3
- IXIWEFWRKIUMQX-DCAQKATOSA-N Asp-Arg-Leu Chemical compound CC(C)C[C@@H](C(O)=O)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@@H](N)CC(O)=O IXIWEFWRKIUMQX-DCAQKATOSA-N 0.000 description 3
- LKIYSIYBKYLKPU-BIIVOSGPSA-N Asp-Asp-Pro Chemical compound C1C[C@@H](N(C1)C(=O)[C@H](CC(=O)O)NC(=O)[C@H](CC(=O)O)N)C(=O)O LKIYSIYBKYLKPU-BIIVOSGPSA-N 0.000 description 3
- VAWNQIGQPUOPQW-ACZMJKKPSA-N Asp-Glu-Ala Chemical compound [H]N[C@@H](CC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C)C(O)=O VAWNQIGQPUOPQW-ACZMJKKPSA-N 0.000 description 3
- PSLSTUMPZILTAH-BYULHYEWSA-N Asp-Gly-Ile Chemical compound CC[C@H](C)[C@@H](C(O)=O)NC(=O)CNC(=O)[C@@H](N)CC(O)=O PSLSTUMPZILTAH-BYULHYEWSA-N 0.000 description 3
- SEMWSADZTMJELF-BYULHYEWSA-N Asp-Ile-Gly Chemical compound [H]N[C@@H](CC(O)=O)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(O)=O SEMWSADZTMJELF-BYULHYEWSA-N 0.000 description 3
- FQHBAQLBIXLWAG-DCAQKATOSA-N Asp-Lys-Met Chemical compound CSCC[C@@H](C(=O)O)NC(=O)[C@H](CCCCN)NC(=O)[C@H](CC(=O)O)N FQHBAQLBIXLWAG-DCAQKATOSA-N 0.000 description 3
- OETOANMAHTWESF-KKUMJFAQSA-N Cys-Phe-His Chemical compound C1=CC=C(C=C1)C[C@@H](C(=O)N[C@@H](CC2=CN=CN2)C(=O)O)NC(=O)[C@H](CS)N OETOANMAHTWESF-KKUMJFAQSA-N 0.000 description 3
- CHRCKSPMGYDLIA-SRVKXCTJSA-N Cys-Phe-Ser Chemical compound [H]N[C@@H](CS)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CO)C(O)=O CHRCKSPMGYDLIA-SRVKXCTJSA-N 0.000 description 3
- LPIKVBWNNVFHCQ-GUBZILKMSA-N Gln-Ser-Leu Chemical compound [H]N[C@@H](CCC(N)=O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(C)C)C(O)=O LPIKVBWNNVFHCQ-GUBZILKMSA-N 0.000 description 3
- VAIWPXWHWAPYDF-FXQIFTODSA-N Glu-Asp-Gln Chemical compound [H]N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCC(N)=O)C(O)=O VAIWPXWHWAPYDF-FXQIFTODSA-N 0.000 description 3
- WLIPTFCZLHCNFD-LPEHRKFASA-N Glu-Gln-Pro Chemical compound C1C[C@@H](N(C1)C(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CCC(=O)O)N)C(=O)O WLIPTFCZLHCNFD-LPEHRKFASA-N 0.000 description 3
- CGOHAEBMDSEKFB-FXQIFTODSA-N Glu-Glu-Ala Chemical compound [H]N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](C)C(O)=O CGOHAEBMDSEKFB-FXQIFTODSA-N 0.000 description 3
- IVGJYOOGJLFKQE-AVGNSLFASA-N Glu-Leu-Lys Chemical compound CC(C)C[C@@H](C(=O)N[C@@H](CCCCN)C(=O)O)NC(=O)[C@H](CCC(=O)O)N IVGJYOOGJLFKQE-AVGNSLFASA-N 0.000 description 3
- ZYRXTRTUCAVNBQ-GVXVVHGQSA-N Glu-Val-Lys Chemical compound CC(C)[C@@H](C(=O)N[C@@H](CCCCN)C(=O)O)NC(=O)[C@H](CCC(=O)O)N ZYRXTRTUCAVNBQ-GVXVVHGQSA-N 0.000 description 3
- XUORRGAFUQIMLC-STQMWFEESA-N Gly-Arg-Tyr Chemical compound C1=CC(=CC=C1C[C@@H](C(=O)O)NC(=O)[C@H](CCCN=C(N)N)NC(=O)CN)O XUORRGAFUQIMLC-STQMWFEESA-N 0.000 description 3
- OCDLPQDYTJPWNG-YUMQZZPRSA-N Gly-Asn-Lys Chemical compound C(CCN)C[C@@H](C(=O)O)NC(=O)[C@H](CC(=O)N)NC(=O)CN OCDLPQDYTJPWNG-YUMQZZPRSA-N 0.000 description 3
- KAJAOGBVWCYGHZ-JTQLQIEISA-N Gly-Gly-Phe Chemical compound [NH3+]CC(=O)NCC(=O)N[C@H](C([O-])=O)CC1=CC=CC=C1 KAJAOGBVWCYGHZ-JTQLQIEISA-N 0.000 description 3
- ZOTGXWMKUFSKEU-QXEWZRGKSA-N Gly-Ile-Met Chemical compound [H]NCC(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCSC)C(O)=O ZOTGXWMKUFSKEU-QXEWZRGKSA-N 0.000 description 3
- QAMMIGULQSIRCD-IRXDYDNUSA-N Gly-Phe-Tyr Chemical compound C([C@H](NC(=O)C[NH3+])C(=O)N[C@@H](CC=1C=CC(O)=CC=1)C([O-])=O)C1=CC=CC=C1 QAMMIGULQSIRCD-IRXDYDNUSA-N 0.000 description 3
- CSMYMGFCEJWALV-WDSKDSINSA-N Gly-Ser-Gln Chemical compound NCC(=O)N[C@@H](CO)C(=O)N[C@H](C(O)=O)CCC(N)=O CSMYMGFCEJWALV-WDSKDSINSA-N 0.000 description 3
- XHVONGZZVUUORG-WEDXCCLWSA-N Gly-Thr-Lys Chemical compound NCC(=O)N[C@@H]([C@H](O)C)C(=O)N[C@H](C(O)=O)CCCCN XHVONGZZVUUORG-WEDXCCLWSA-N 0.000 description 3
- DNVDEMWIYLVIQU-RCOVLWMOSA-N Gly-Val-Asp Chemical compound NCC(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC(O)=O)C(O)=O DNVDEMWIYLVIQU-RCOVLWMOSA-N 0.000 description 3
- BNMRSWQOHIQTFL-JSGCOSHPSA-N Gly-Val-Phe Chemical compound NCC(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(O)=O)CC1=CC=CC=C1 BNMRSWQOHIQTFL-JSGCOSHPSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- FIMNVXRZGUAGBI-AVGNSLFASA-N His-Glu-Leu Chemical compound [H]N[C@@H](CC1=CNC=N1)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(C)C)C(O)=O FIMNVXRZGUAGBI-AVGNSLFASA-N 0.000 description 3
- RLAOTFTXBFQJDV-KKUMJFAQSA-N His-Phe-Asp Chemical compound C([C@H](N)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(O)=O)C(O)=O)C1=CN=CN1 RLAOTFTXBFQJDV-KKUMJFAQSA-N 0.000 description 3
- KFVUBLZRFSVDGO-BYULHYEWSA-N Ile-Gly-Asp Chemical compound CC[C@H](C)[C@H](N)C(=O)NCC(=O)N[C@H](C(O)=O)CC(O)=O KFVUBLZRFSVDGO-BYULHYEWSA-N 0.000 description 3
- DMSVBUWGDLYNLC-IAVJCBSLSA-N Ile-Ile-Phe Chemical compound CC[C@H](C)[C@H](N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@H](C(O)=O)CC1=CC=CC=C1 DMSVBUWGDLYNLC-IAVJCBSLSA-N 0.000 description 3
- PRTZQMBYUZFSFA-XEGUGMAKSA-N Ile-Tyr-Gly Chemical compound CC[C@H](C)[C@@H](C(=O)N[C@@H](CC1=CC=C(C=C1)O)C(=O)NCC(=O)O)N PRTZQMBYUZFSFA-XEGUGMAKSA-N 0.000 description 3
- LZDNBBYBDGBADK-UHFFFAOYSA-N L-valyl-L-tryptophan Natural products C1=CC=C2C(CC(NC(=O)C(N)C(C)C)C(O)=O)=CNC2=C1 LZDNBBYBDGBADK-UHFFFAOYSA-N 0.000 description 3
- WSGXUIQTEZDVHJ-GARJFASQSA-N Leu-Ala-Pro Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](C)C(=O)N1CCC[C@@H]1C(O)=O WSGXUIQTEZDVHJ-GARJFASQSA-N 0.000 description 3
- FIJMQLGQLBLBOL-HJGDQZAQSA-N Leu-Asn-Thr Chemical compound [H]N[C@@H](CC(C)C)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H]([C@@H](C)O)C(O)=O FIJMQLGQLBLBOL-HJGDQZAQSA-N 0.000 description 3
- TWQIYNGNYNJUFM-NHCYSSNCSA-N Leu-Asn-Val Chemical compound [H]N[C@@H](CC(C)C)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](C(C)C)C(O)=O TWQIYNGNYNJUFM-NHCYSSNCSA-N 0.000 description 3
- ILJREDZFPHTUIE-GUBZILKMSA-N Leu-Asp-Glu Chemical compound [H]N[C@@H](CC(C)C)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(O)=O ILJREDZFPHTUIE-GUBZILKMSA-N 0.000 description 3
- MYGQXVYRZMKRDB-SRVKXCTJSA-N Leu-Asp-Lys Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@H](C(O)=O)CCCCN MYGQXVYRZMKRDB-SRVKXCTJSA-N 0.000 description 3
- DDEMUMVXNFPDKC-SRVKXCTJSA-N Leu-His-Cys Chemical compound CC(C)C[C@@H](C(=O)N[C@@H](CC1=CN=CN1)C(=O)N[C@@H](CS)C(=O)O)N DDEMUMVXNFPDKC-SRVKXCTJSA-N 0.000 description 3
- LFSQWRSVPNKJGP-WDCWCFNPSA-N Leu-Thr-Glu Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@H](C(O)=O)CCC(O)=O LFSQWRSVPNKJGP-WDCWCFNPSA-N 0.000 description 3
- CGHXMODRYJISSK-NHCYSSNCSA-N Leu-Val-Asp Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(O)=O)CC(O)=O CGHXMODRYJISSK-NHCYSSNCSA-N 0.000 description 3
- MSSJJDVQTFTLIF-KBPBESRZSA-N Lys-Phe-Gly Chemical compound NCCCC[C@H](N)C(=O)N[C@@H](Cc1ccccc1)C(=O)NCC(O)=O MSSJJDVQTFTLIF-KBPBESRZSA-N 0.000 description 3
- YTJFXEDRUOQGSP-DCAQKATOSA-N Lys-Pro-Ser Chemical compound [H]N[C@@H](CCCCN)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(O)=O YTJFXEDRUOQGSP-DCAQKATOSA-N 0.000 description 3
- DRRXXZBXDMLGFC-IHRRRGAJSA-N Lys-Val-Leu Chemical compound CC(C)C[C@@H](C(O)=O)NC(=O)[C@H](C(C)C)NC(=O)[C@@H](N)CCCCN DRRXXZBXDMLGFC-IHRRRGAJSA-N 0.000 description 3
- AVTWKENDGGUWDC-BQBZGAKWSA-N Met-Cys-Gly Chemical compound CSCC[C@H](N)C(=O)N[C@@H](CS)C(=O)NCC(O)=O AVTWKENDGGUWDC-BQBZGAKWSA-N 0.000 description 3
- UYAKZHGIPRCGPF-CIUDSAMLSA-N Met-Glu-Ala Chemical compound C[C@@H](C(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCSC)N UYAKZHGIPRCGPF-CIUDSAMLSA-N 0.000 description 3
- CHQWUYSNAOABIP-ZPFDUUQYSA-N Met-Glu-Ile Chemical compound CC[C@H](C)[C@@H](C(=O)O)NC(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CCSC)N CHQWUYSNAOABIP-ZPFDUUQYSA-N 0.000 description 3
- LRALLISKBZNSKN-BQBZGAKWSA-N Met-Gly-Ser Chemical compound CSCC[C@H](N)C(=O)NCC(=O)N[C@@H](CO)C(O)=O LRALLISKBZNSKN-BQBZGAKWSA-N 0.000 description 3
- TZHFJXDKXGZHEN-IHRRRGAJSA-N Met-His-Leu Chemical compound [H]N[C@@H](CCSC)C(=O)N[C@@H](CC1=CNC=N1)C(=O)N[C@@H](CC(C)C)C(O)=O TZHFJXDKXGZHEN-IHRRRGAJSA-N 0.000 description 3
- AFVOKRHYSSFPHC-STECZYCISA-N Met-Ile-Tyr Chemical compound CSCC[C@H](N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@H](C(O)=O)CC1=CC=C(O)C=C1 AFVOKRHYSSFPHC-STECZYCISA-N 0.000 description 3
- JCMMNFZUKMMECJ-DCAQKATOSA-N Met-Lys-Asn Chemical compound [H]N[C@@H](CCSC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(O)=O JCMMNFZUKMMECJ-DCAQKATOSA-N 0.000 description 3
- XZFYRXDAULDNFX-UHFFFAOYSA-N N-L-cysteinyl-L-phenylalanine Natural products SCC(N)C(=O)NC(C(O)=O)CC1=CC=CC=C1 XZFYRXDAULDNFX-UHFFFAOYSA-N 0.000 description 3
- PESQCPHRXOFIPX-UHFFFAOYSA-N N-L-methionyl-L-tyrosine Natural products CSCCC(N)C(=O)NC(C(O)=O)CC1=CC=C(O)C=C1 PESQCPHRXOFIPX-UHFFFAOYSA-N 0.000 description 3
- 108010079364 N-glycylalanine Proteins 0.000 description 3
- 108010066427 N-valyltryptophan Proteins 0.000 description 3
- AGYXCMYVTBYGCT-ULQDDVLXSA-N Phe-Arg-Leu Chemical compound [H]N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(C)C)C(O)=O AGYXCMYVTBYGCT-ULQDDVLXSA-N 0.000 description 3
- SZYBZVANEAOIPE-UBHSHLNASA-N Phe-Met-Ala Chemical compound [H]N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](C)C(O)=O SZYBZVANEAOIPE-UBHSHLNASA-N 0.000 description 3
- IEOHQGFKHXUALJ-JYJNAYRXSA-N Phe-Met-Arg Chemical compound [H]N[C@@H](CC1=CC=CC=C1)C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CCCNC(N)=N)C(O)=O IEOHQGFKHXUALJ-JYJNAYRXSA-N 0.000 description 3
- AAERWTUHZKLDLC-IHRRRGAJSA-N Phe-Pro-Asp Chemical compound [H]N[C@@H](CC1=CC=CC=C1)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CC(O)=O)C(O)=O AAERWTUHZKLDLC-IHRRRGAJSA-N 0.000 description 3
- BPIMVBKDLSBKIJ-FCLVOEFKSA-N Phe-Thr-Phe Chemical compound C([C@H](N)C(=O)N[C@@H]([C@H](O)C)C(=O)N[C@@H](CC=1C=CC=CC=1)C(O)=O)C1=CC=CC=C1 BPIMVBKDLSBKIJ-FCLVOEFKSA-N 0.000 description 3
- NHDVNAKDACFHPX-GUBZILKMSA-N Pro-Arg-Ala Chemical compound [H]N1CCC[C@H]1C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](C)C(O)=O NHDVNAKDACFHPX-GUBZILKMSA-N 0.000 description 3
- QGOZJLYCGRYYRW-KKUMJFAQSA-N Pro-Glu-Tyr Chemical compound [H]N1CCC[C@H]1C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(O)=O QGOZJLYCGRYYRW-KKUMJFAQSA-N 0.000 description 3
- CZCCVJUUWBMISW-FXQIFTODSA-N Pro-Ser-Cys Chemical compound C1C[C@H](NC1)C(=O)N[C@@H](CO)C(=O)N[C@@H](CS)C(=O)O CZCCVJUUWBMISW-FXQIFTODSA-N 0.000 description 3
- ZMLRZBWCXPQADC-TUAOUCFPSA-N Pro-Val-Pro Chemical compound CC(C)[C@@H](C(=O)N1CCC[C@@H]1C(=O)O)NC(=O)[C@@H]2CCCN2 ZMLRZBWCXPQADC-TUAOUCFPSA-N 0.000 description 3
- 241000282849 Ruminantia Species 0.000 description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 3
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 3
- JPIDMRXXNMIVKY-VZFHVOOUSA-N Ser-Ala-Thr Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H]([C@@H](C)O)C(O)=O JPIDMRXXNMIVKY-VZFHVOOUSA-N 0.000 description 3
- BRGQQXQKPUCUJQ-KBIXCLLPSA-N Ser-Glu-Ile Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H]([C@@H](C)CC)C(O)=O BRGQQXQKPUCUJQ-KBIXCLLPSA-N 0.000 description 3
- QKQDTEYDEIJPNK-GUBZILKMSA-N Ser-Glu-Lys Chemical compound NCCCC[C@@H](C(O)=O)NC(=O)[C@H](CCC(O)=O)NC(=O)[C@@H](N)CO QKQDTEYDEIJPNK-GUBZILKMSA-N 0.000 description 3
- XJDMUQCLVSCRSJ-VZFHVOOUSA-N Ser-Thr-Ala Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](C)C(O)=O XJDMUQCLVSCRSJ-VZFHVOOUSA-N 0.000 description 3
- TWLMXDWFVNEFFK-FJXKBIBVSA-N Thr-Arg-Gly Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)NCC(O)=O TWLMXDWFVNEFFK-FJXKBIBVSA-N 0.000 description 3
- NLSNVZAREYQMGR-HJGDQZAQSA-N Thr-Asp-Leu Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC(C)C)C(O)=O NLSNVZAREYQMGR-HJGDQZAQSA-N 0.000 description 3
- BVOVIGCHYNFJBZ-JXUBOQSCSA-N Thr-Leu-Ala Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C)C(O)=O BVOVIGCHYNFJBZ-JXUBOQSCSA-N 0.000 description 3
- BIBYEFRASCNLAA-CDMKHQONSA-N Thr-Phe-Gly Chemical compound C[C@@H](O)[C@H](N)C(=O)N[C@H](C(=O)NCC(O)=O)CC1=CC=CC=C1 BIBYEFRASCNLAA-CDMKHQONSA-N 0.000 description 3
- OLFOOYQTTQSSRK-UNQGMJICSA-N Thr-Pro-Phe Chemical compound C[C@@H](O)[C@H](N)C(=O)N1CCC[C@H]1C(=O)N[C@H](C(O)=O)CC1=CC=CC=C1 OLFOOYQTTQSSRK-UNQGMJICSA-N 0.000 description 3
- DTPWXZXGFAHEKL-NWLDYVSISA-N Trp-Thr-Glu Chemical compound [H]N[C@@H](CC1=CNC2=C1C=CC=C2)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(O)=O DTPWXZXGFAHEKL-NWLDYVSISA-N 0.000 description 3
- WTRQBSSQBKRNKV-MNSWYVGCSA-N Trp-Thr-Tyr Chemical compound C([C@H](NC(=O)[C@@H](NC(=O)[C@@H](N)CC=1C2=CC=CC=C2NC=1)[C@H](O)C)C(O)=O)C1=CC=C(O)C=C1 WTRQBSSQBKRNKV-MNSWYVGCSA-N 0.000 description 3
- ZPZNQAZHMCLTOA-PXDAIIFMSA-N Trp-Tyr-Ile Chemical compound C([C@@H](C(=O)N[C@@H]([C@@H](C)CC)C(O)=O)NC(=O)[C@@H](N)CC=1C2=CC=CC=C2NC=1)C1=CC=C(O)C=C1 ZPZNQAZHMCLTOA-PXDAIIFMSA-N 0.000 description 3
- MICSYKFECRFCTJ-IHRRRGAJSA-N Tyr-Arg-Asp Chemical compound C1=CC(=CC=C1C[C@@H](C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CC(=O)O)C(=O)O)N)O MICSYKFECRFCTJ-IHRRRGAJSA-N 0.000 description 3
- QNJYPWZACBACER-KKUMJFAQSA-N Tyr-Asp-His Chemical compound C1=CC(=CC=C1C[C@@H](C(=O)N[C@@H](CC(=O)O)C(=O)N[C@@H](CC2=CN=CN2)C(=O)O)N)O QNJYPWZACBACER-KKUMJFAQSA-N 0.000 description 3
- DDRBQONWVBDQOY-GUBZILKMSA-N Val-Ala-Arg Chemical compound CC(C)[C@H](N)C(=O)N[C@@H](C)C(=O)N[C@@H](CCCN=C(N)N)C(O)=O DDRBQONWVBDQOY-GUBZILKMSA-N 0.000 description 3
- SZTTYWIUCGSURQ-AUTRQRHGSA-N Val-Glu-Glu Chemical compound CC(C)[C@H](N)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(O)=O SZTTYWIUCGSURQ-AUTRQRHGSA-N 0.000 description 3
- LAYSXAOGWHKNED-XPUUQOCRSA-N Val-Gly-Ser Chemical compound CC(C)[C@H](N)C(=O)NCC(=O)N[C@@H](CO)C(O)=O LAYSXAOGWHKNED-XPUUQOCRSA-N 0.000 description 3
- UVHFONIHVHLDDQ-IFFSRLJSSA-N Val-Thr-Glu Chemical compound C[C@H]([C@@H](C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC(=O)[C@H](C(C)C)N)O UVHFONIHVHLDDQ-IFFSRLJSSA-N 0.000 description 3
- 108010005233 alanylglutamic acid Proteins 0.000 description 3
- 108010047495 alanylglycine Proteins 0.000 description 3
- 108010087924 alanylproline Proteins 0.000 description 3
- KOSRFJWDECSPRO-UHFFFAOYSA-N alpha-L-glutamyl-L-glutamic acid Natural products OC(=O)CCC(N)C(=O)NC(CCC(O)=O)C(O)=O KOSRFJWDECSPRO-UHFFFAOYSA-N 0.000 description 3
- 108010080488 arginyl-arginyl-leucine Proteins 0.000 description 3
- 108010009111 arginyl-glycyl-glutamic acid Proteins 0.000 description 3
- 108010069205 aspartyl-phenylalanine Proteins 0.000 description 3
- 108010047857 aspartylglycine Proteins 0.000 description 3
- 108010092854 aspartyllysine Proteins 0.000 description 3
- FSXRLASFHBWESK-UHFFFAOYSA-N dipeptide phenylalanyl-tyrosine Natural products C=1C=C(O)C=CC=1CC(C(O)=O)NC(=O)C(N)CC1=CC=CC=C1 FSXRLASFHBWESK-UHFFFAOYSA-N 0.000 description 3
- 238000000855 fermentation Methods 0.000 description 3
- 230000004151 fermentation Effects 0.000 description 3
- 108010063718 gamma-glutamylaspartic acid Proteins 0.000 description 3
- 108010055341 glutamyl-glutamic acid Proteins 0.000 description 3
- VPZXBVLAVMBEQI-UHFFFAOYSA-N glycyl-DL-alpha-alanine Natural products OC(=O)C(C)NC(=O)CN VPZXBVLAVMBEQI-UHFFFAOYSA-N 0.000 description 3
- 108010067216 glycyl-glycyl-glycine Proteins 0.000 description 3
- 108010050848 glycylleucine Proteins 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 108010009298 lysylglutamic acid Proteins 0.000 description 3
- 108010054155 lysyllysine Proteins 0.000 description 3
- 108010085203 methionylmethionine Proteins 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 108010064486 phenylalanyl-leucyl-valine Proteins 0.000 description 3
- 108010012581 phenylalanylglutamate Proteins 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 108010031719 prolyl-serine Proteins 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 3
- 108010035534 tyrosyl-leucyl-alanine Proteins 0.000 description 3
- 108010020532 tyrosyl-proline Proteins 0.000 description 3
- HQFLTUZKIRYQSP-UHFFFAOYSA-N 3-ethyl-2h-1,3-benzothiazole-6-sulfonic acid Chemical compound OS(=O)(=O)C1=CC=C2N(CC)CSC2=C1 HQFLTUZKIRYQSP-UHFFFAOYSA-N 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 2
- GKAZXNDATBWNBI-DCAQKATOSA-N Ala-Met-Lys Chemical compound C[C@@H](C(=O)N[C@@H](CCSC)C(=O)N[C@@H](CCCCN)C(=O)O)N GKAZXNDATBWNBI-DCAQKATOSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- KASDBWKLWJKTLJ-GUBZILKMSA-N Glu-Glu-Met Chemical compound [H]N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCSC)C(O)=O KASDBWKLWJKTLJ-GUBZILKMSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 241000588729 Hafnia alvei Species 0.000 description 2
- GVKKVHNRTUFCCE-BJDJZHNGSA-N Ile-Leu-Ser Chemical compound CC[C@H](C)[C@@H](C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CO)C(=O)O)N GVKKVHNRTUFCCE-BJDJZHNGSA-N 0.000 description 2
- 108010093096 Immobilized Enzymes Proteins 0.000 description 2
- WNGVUZWBXZKQES-YUMQZZPRSA-N Leu-Ala-Gly Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](C)C(=O)NCC(O)=O WNGVUZWBXZKQES-YUMQZZPRSA-N 0.000 description 2
- VGPCJSXPPOQPBK-YUMQZZPRSA-N Leu-Gly-Ser Chemical compound CC(C)C[C@H](N)C(=O)NCC(=O)N[C@@H](CO)C(O)=O VGPCJSXPPOQPBK-YUMQZZPRSA-N 0.000 description 2
- YVMQJGWLHRWMDF-MNXVOIDGSA-N Lys-Gln-Ile Chemical compound CC[C@H](C)[C@@H](C(=O)O)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CCCCN)N YVMQJGWLHRWMDF-MNXVOIDGSA-N 0.000 description 2
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 2
- HBGFEEQFVBWYJQ-KBPBESRZSA-N Phe-Gly-Lys Chemical compound NCCCC[C@@H](C(O)=O)NC(=O)CNC(=O)[C@@H](N)CC1=CC=CC=C1 HBGFEEQFVBWYJQ-KBPBESRZSA-N 0.000 description 2
- 241000605036 Selenomonas Species 0.000 description 2
- 241000605031 Selenomonas ruminantium Species 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- XKWABWFMQXMUMT-HJGDQZAQSA-N Thr-Pro-Glu Chemical compound [H]N[C@@H]([C@@H](C)O)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CCC(O)=O)C(O)=O XKWABWFMQXMUMT-HJGDQZAQSA-N 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- OHDRQQURAXLVGJ-HLVWOLMTSA-N azane;(2e)-3-ethyl-2-[(e)-(3-ethyl-6-sulfo-1,3-benzothiazol-2-ylidene)hydrazinylidene]-1,3-benzothiazole-6-sulfonic acid Chemical compound [NH4+].[NH4+].S/1C2=CC(S([O-])(=O)=O)=CC=C2N(CC)C\1=N/N=C1/SC2=CC(S([O-])(=O)=O)=CC=C2N1CC OHDRQQURAXLVGJ-HLVWOLMTSA-N 0.000 description 2
- 239000011942 biocatalyst Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000007853 buffer solution Substances 0.000 description 2
- 229940041514 candida albicans extract Drugs 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000010353 genetic engineering Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004128 high performance liquid chromatography Methods 0.000 description 2
- 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 2
- 229930027917 kanamycin Natural products 0.000 description 2
- 229960000318 kanamycin Drugs 0.000 description 2
- SBUJHOSQTJFQJX-NOAMYHISSA-N kanamycin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O[C@@H]2[C@@H]([C@@H](N)[C@H](O)[C@@H](CO)O2)O)[C@H](N)C[C@@H]1N SBUJHOSQTJFQJX-NOAMYHISSA-N 0.000 description 2
- 229930182823 kanamycin A Natural products 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 108010048818 seryl-histidine Proteins 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 239000012137 tryptone Substances 0.000 description 2
- 239000012138 yeast extract Substances 0.000 description 2
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 1
- FWMNVWWHGCHHJJ-SKKKGAJSSA-N 4-amino-1-[(2r)-6-amino-2-[[(2r)-2-[[(2r)-2-[[(2r)-2-amino-3-phenylpropanoyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoyl]amino]hexanoyl]piperidine-4-carboxylic acid Chemical group C([C@H](C(=O)N[C@H](CC(C)C)C(=O)N[C@H](CCCCN)C(=O)N1CCC(N)(CC1)C(O)=O)NC(=O)[C@H](N)CC=1C=CC=CC=1)C1=CC=CC=C1 FWMNVWWHGCHHJJ-SKKKGAJSSA-N 0.000 description 1
- FVSOUJZKYWEFOB-KBIXCLLPSA-N Ala-Gln-Ile Chemical compound CC[C@H](C)[C@@H](C(O)=O)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](C)N FVSOUJZKYWEFOB-KBIXCLLPSA-N 0.000 description 1
- IYKVSFNGSWTTNZ-GUBZILKMSA-N Ala-Val-Arg Chemical compound C[C@H](N)C(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(O)=O)CCCN=C(N)N IYKVSFNGSWTTNZ-GUBZILKMSA-N 0.000 description 1
- 239000004475 Arginine Substances 0.000 description 1
- APHUDFFMXFYRKP-CIUDSAMLSA-N Asn-Asn-Lys Chemical compound C(CCN)C[C@@H](C(=O)O)NC(=O)[C@H](CC(=O)N)NC(=O)[C@H](CC(=O)N)N APHUDFFMXFYRKP-CIUDSAMLSA-N 0.000 description 1
- 102000016928 DNA-directed DNA polymerase Human genes 0.000 description 1
- 108010014303 DNA-directed DNA polymerase Proteins 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- APHGWLWMOXGZRL-DCAQKATOSA-N Glu-Glu-His Chemical compound N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](Cc1cnc[nH]1)C(O)=O APHGWLWMOXGZRL-DCAQKATOSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 239000007836 KH2PO4 Substances 0.000 description 1
- ODKSFYDXXFIFQN-BYPYZUCNSA-N L-arginine Chemical compound OC(=O)[C@@H](N)CCCN=C(N)N ODKSFYDXXFIFQN-BYPYZUCNSA-N 0.000 description 1
- 229930064664 L-arginine Natural products 0.000 description 1
- 235000014852 L-arginine Nutrition 0.000 description 1
- RCFDOSNHHZGBOY-UHFFFAOYSA-N L-isoleucyl-L-alanine Natural products CCC(C)C(N)C(=O)NC(C)C(O)=O RCFDOSNHHZGBOY-UHFFFAOYSA-N 0.000 description 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 1
- CCQLQKZTXZBXTN-NHCYSSNCSA-N Leu-Gly-Ile Chemical compound [H]N[C@@H](CC(C)C)C(=O)NCC(=O)N[C@@H]([C@@H](C)CC)C(O)=O CCQLQKZTXZBXTN-NHCYSSNCSA-N 0.000 description 1
- FBNPMTNBFFAMMH-UHFFFAOYSA-N Leu-Val-Arg Natural products CC(C)CC(N)C(=O)NC(C(C)C)C(=O)NC(C(O)=O)CCCN=C(N)N FBNPMTNBFFAMMH-UHFFFAOYSA-N 0.000 description 1
- 229910021380 Manganese Chloride Inorganic materials 0.000 description 1
- 108091028043 Nucleic acid sequence Proteins 0.000 description 1
- 102000052812 Ornithine decarboxylases Human genes 0.000 description 1
- 108700005126 Ornithine decarboxylases Proteins 0.000 description 1
- 238000012408 PCR amplification Methods 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- NAXPHWZXEXNDIW-JTQLQIEISA-N Phe-Gly-Gly Chemical compound OC(=O)CNC(=O)CNC(=O)[C@@H](N)CC1=CC=CC=C1 NAXPHWZXEXNDIW-JTQLQIEISA-N 0.000 description 1
- CLNJSLSHKJECME-BQBZGAKWSA-N Pro-Gly-Ala Chemical compound OC(=O)[C@H](C)NC(=O)CNC(=O)[C@@H]1CCCN1 CLNJSLSHKJECME-BQBZGAKWSA-N 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- MTCFGRXMJLQNBG-UHFFFAOYSA-N Serine Natural products OCC(N)C(O)=O MTCFGRXMJLQNBG-UHFFFAOYSA-N 0.000 description 1
- 241001052560 Thallis Species 0.000 description 1
- PFNZJEPSCBAVGX-CYDGBPFRSA-N Val-Arg-Ile Chemical compound CC[C@H](C)[C@@H](C(=O)O)NC(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](C(C)C)N PFNZJEPSCBAVGX-CYDGBPFRSA-N 0.000 description 1
- 108010041407 alanylaspartic acid Proteins 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- ODKSFYDXXFIFQN-UHFFFAOYSA-N arginine Natural products OC(=O)C(N)CCCNC(N)=N ODKSFYDXXFIFQN-UHFFFAOYSA-N 0.000 description 1
- 235000009697 arginine Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000005515 coenzyme Substances 0.000 description 1
- 238000004440 column chromatography Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- SUYVUBYJARFZHO-RRKCRQDMSA-N dATP Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@H]1C[C@H](O)[C@@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=O)O1 SUYVUBYJARFZHO-RRKCRQDMSA-N 0.000 description 1
- SUYVUBYJARFZHO-UHFFFAOYSA-N dATP Natural products C1=NC=2C(N)=NC=NC=2N1C1CC(O)C(COP(O)(=O)OP(O)(=O)OP(O)(O)=O)O1 SUYVUBYJARFZHO-UHFFFAOYSA-N 0.000 description 1
- RGWHQCVHVJXOKC-SHYZEUOFSA-J dCTP(4-) Chemical compound O=C1N=C(N)C=CN1[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)C1 RGWHQCVHVJXOKC-SHYZEUOFSA-J 0.000 description 1
- HAAZLUGHYHWQIW-KVQBGUIXSA-N dGTP Chemical compound C1=NC=2C(=O)NC(N)=NC=2N1[C@H]1C[C@H](O)[C@@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=O)O1 HAAZLUGHYHWQIW-KVQBGUIXSA-N 0.000 description 1
- NHVNXKFIZYSCEB-XLPZGREQSA-N dTTP Chemical compound O=C1NC(=O)C(C)=CN1[C@@H]1O[C@H](COP(O)(=O)OP(O)(=O)OP(O)(O)=O)[C@@H](O)C1 NHVNXKFIZYSCEB-XLPZGREQSA-N 0.000 description 1
- 230000002255 enzymatic effect Effects 0.000 description 1
- 238000003028 enzyme activity measurement method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 238000012268 genome sequencing Methods 0.000 description 1
- 238000013537 high throughput screening Methods 0.000 description 1
- 108010036413 histidylglycine Proteins 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
- 238000009776 industrial production Methods 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910001629 magnesium chloride Inorganic materials 0.000 description 1
- 239000011565 manganese chloride Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229930182817 methionine Natural products 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000006340 racemization Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C12N9/88—Lyases (4.)
-
- 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
- C12P13/10—Citrulline; Arginine; Ornithine
-
- 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
- C12P41/00—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture
- C12P41/001—Processes using enzymes or microorganisms to separate optical isomers from a racemic mixture by metabolizing one of the enantiomers
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Y—ENZYMES
- C12Y401/00—Carbon-carbon lyases (4.1)
- C12Y401/01—Carboxy-lyases (4.1.1)
- C12Y401/01018—Lysine decarboxylase (4.1.1.18)
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Genetics & Genomics (AREA)
- General Health & Medical Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
本发明公开了一种L‑赖氨酸脱羧酶突变体,其氨基酸序列为SEQ ID NO:4或SEQ ID NO:6,能够有效催化L‑鸟氨酸的脱羧反应,从而通过外消旋鸟氨酸拆分法制备D‑鸟氨酸,具有工业化开发应用价值。
Description
技术领域
本发明属于基因工程和酶催化技术领域,具体地说,涉及一种L-赖氨酸脱羧酶(L-lysine decarboxylase,Ldc)突变体、及其在制备D-鸟氨酸中的用途。
背景技术
D-鸟氨酸是一种非天然氨基酸,具有独特的生物学特性,在多肽药物以及一些氨基酸类抗生素中杂入D-鸟氨酸后,新形成的药物因难以被细菌降解,可以降低细菌耐药性的产生。此外,D-鸟氨酸也可用于新型氨基酸农药的合成,应用前景广阔。
已报道的D-鸟氨酸生产技术,一般是,以L-精氨酸为底物,经过水解和消旋反应得到DL-鸟氨酸混旋中间产物,然后使用蜂房哈夫尼菌(Hafnia alvei)A S1.1009中的赖氨酸脱羧酶进行拆分反应,获得D-鸟氨酸。目前也可以通过使用表达赖氨酸脱羧酶的大肠杆菌工程菌作为催化剂进行拆分反应,获得D-鸟氨酸。赖氨酸脱羧酶(EC 4.1.1.18),一般既可以催化L-赖氨酸发生脱羧反应,也可以催化L-鸟氨酸发生脱羧反应,其中L-鸟氨酸在L-赖氨酸脱羧酶(L-lysine decarboxylase,Ldc)的催化下,生成腐胺和二氧化碳。
发明内容
发明人对于能够催化L-鸟氨酸脱酸的赖氨酸脱羧酶进行了广泛筛选,发现来源于反刍月形单胞菌(Selenomonas ruminantium)的赖氨酸脱羧酶(UniProtKB-O50657)具有该功能,但酶活力偏低,难以进行工业化应用。于是尝试对其进行定向进化筛选,终于获得了酶活力明显提升的优良突变体,可以用于DL-鸟氨酸的拆分,实现D-鸟氨酸的制备。具体来说,本发明包括如下技术方案:
一种L-赖氨酸脱羧酶突变体,其氨基酸序列为:
SEQ ID NO:4,其为SEQ ID NO:1第136位的R替换为V、第64位的G替换为D、第207位的M替换为H的突变体,即:
MKNFRLSEKEVKTLAKRIPTPFLVASLDKVEENYQFMRRHLPRAGVFYAMKANPTPEILSLLADLGSHFDVASAGEMEILHELGVDGSQMIYANPVKDARGLKAAADYNVRRFTFDDPSEIDKMAKAVPGADVLVVIAVRNNKALVDLNTKFGAPVEEALDLLKAAQDAGLHAMGICFHVGSQSLSTAAYEEALLVARRLFDEAEEHGMHLTDLDIGGGFPVPDAKGLNVDLAAMMEAINKQIDRLFPDTAVWTEPGRYMCGTAVNLVTSVIGTKTRGEQPWYILDEGIYGCFSGIMYDHWTYPLHCFGKGNKKPSTFGGPSCDGIDVLYRDFMAPELKIGDKVLVTEMGSYTSVSATRFNGFYLAPTIIFEDQPEYAARLTEDDDVKKKAAV(SEQ ID NO:4);
SEQ ID NO:6,其为SEQ ID NO:1第136位的R替换为V、第67位的S替换为I、第241位的K替换为A、第310位的K替换为G的突变体,即:
MKNFRLSEKEVKTLAKRIPTPFLVASLDKVEENYQFMRRHLPRAGVFYAMKANPTPEILSLLAGLGIHFDVASAGEMEILHELGVDGSQMIYANPVKDARGLKAAADYNVRRFTFDDPSEIDKMAKAVPGADVLVVIAVRNNKALVDLNTKFGAPVEEALDLLKAAQDAGLHAMGICFHVGSQSLSTAAYEEALLVARRLFDEAEEMGMHLTDLDIGGGFPVPDAKGLNVDLAAMMEAINAQIDRLFPDTAVWTEPGRYMCGTAVNLVTSVIGTKTRGEQPWYILDEGIYGCFSGIMYDHWTYPLHCFGGGNKKPSTFGGPSCDGIDVLYRDFMAPELKIGDKVLVTEMGSYTSVSATRFNGFYLAPTIIFEDQPEYAARLTEDDDVKKKAAV(SEQ ID NO:6)。
优选上述突变体的氨基酸序列为SEQ ID NO:6。
本发明的第二个目的在于提供编码上述L-赖氨酸脱羧酶突变体的基因。
优选地,编码上述突变体SEQ ID NO:4的基因具有下述核苷酸序列:
atgaaaaatttcagacttagcgaaaaagaagtaaaaacgcttgccaagcgtatcccgacgccctttttggtggcttcactggacaaggttgaggaaaactaccagtttatgcgccgtcatttgccgcgggcgggagtgttttatgccatgaaggcgaatcctacgccagaaatactgtccctgctggctGATcttggttctcactttgatgtggcctctgccggggagatggagatcctccatgaattgggcgtagatggttcccagatgatatatgccaatccggtaaaggatgcccgtggcctcaaggctgcggctgactacaatgtccgccggtttactttcgacgatccgtcggaaatcgacaagatggccaaggctgtgccgggagccgatgtgctggtgGTGatcgccgtgcgcaacaacaaagctttggtggatctgaatacgaagtttggtgcgccggtggaagaagcgctggatcttttaaaggctgcgcaggatgctggcctgcatgccatggggatttgcttccatgtgggcagccagtccctgtctacggcggcttatgaggaagccctgctggtggctcgtaggctctttgatgaggcggaagaaCATggcatgcacctgactgacctcgacatcggcggcggtttccctgttcccgatgccaaggggctcaatgtggatctggcggccatgatggaagccatcaacaagcagatcgaccgcctgttcccggatacagctgtttggacggaaccgggccgttatatgtgcggtacggcggtgaacctcgtcacatcggttatcggcacgaaaacccgtggtgagcagccttggtatatcttagatgaaggcatctatggctgcttctccggcatcatgtatgaccactggacgtacccgcttcattgcttcggcaaggggaataagaaaccttcgactttcggcggccccagctgcgatggcatcgatgtgctctatcgcgacttcatggcaccggagctcaagatcggggacaaggtgctggtgacggaaatgggttcctataccagcgtcagcgctacgcgtttcaacggtttctacctggcgcccaccatcatctttgaggaccagccggaatatgcagcccgtctgacggaagatgatgatgtgaagaaaaaggcggctgtataa(SEQ ID NO:3)。
编码上述突变体SEQ ID NO:6的基因具有下述核苷酸序列:
atgaaaaatttcagacttagcgaaaaagaagtaaaaacgcttgccaagcgtatcccgacgccctttttggtggcttcactggacaaggttgaggaaaactaccagtttatgcgccgtcatttgccgcgggcgggagtgttttatgccatgaaggcgaatcctacgccagaaatactgtccctgctggctggccttggtATCcactttgatgtggcctctgccggggagatggagatcctccatgaattgggcgtagatggttcccagatgatatatgccaatccggtaaaggatgcccgtggcctcaaggctgcggctgactacaatgtccgccggtttactttcgacgatccgtcggaaatcgacaagatggccaaggctgtgccgggagccgatgtgctggtgGTGatcgccgtgcgcaacaacaaagctttggtggatctgaatacgaagtttggtgcgccggtggaagaagcgctggatcttttaaaggctgcgcaggatgctggcctgcatgccatggggatttgcttccatgtgggcagccagtccctgtctacggcggcttatgaggaagccctgctggtggctcgtaggctctttgatgaggcggaagaaatgggcatgcacctgactgacctcgacatcggcggcggtttccctgttcccgatgccaaggggctcaatgtggatctggcggccatgatggaagccatcaacGCCcagatcgaccgcctgttcccggatacagctgtttggacggaaccgggccgttatatgtgcggtacggcggtgaacctcgtcacatcggttatcggcacgaaaacccgtggtgagcagccttggtatatcttagatgaaggcatctatggctgcttctccggcatcatgtatgaccactggacgtacccgcttcattgcttcggcGGCgggaataagaaaccttcgactttcggcggccccagctgcgatggcatcgatgtgctctatcgcgacttcatggcaccggagctcaagatcggggacaaggtgctggtgacggaaatgggttcctataccagcgtcagcgctacgcgtttcaacggtttctacctggcgcccaccatcatctttgaggaccagccggaatatgcagcccgtctgacggaagatgatgatgtgaagaaaaaggcggctgtataa(SEQ ID NO:5)。
本发明的第三个目的在于提供包含上述基因的质粒。该质粒例如可以选自pSH质粒、pET系列比如pET24a或pET28a等。
本发明的第四个目的在于提供一种表达上述L-赖氨酸脱羧酶突变体SEQ ID NO:4或SEQ ID NO:6的微生物。该微生物例如是转化了上述质粒的微生物。
优选地,上述微生物选自大肠杆菌、酵母、枯草杆菌。更优选大肠杆菌BL21(DE3)。
通过上述微生物的发酵,可获得L-赖氨酸脱羧酶突变体。例如,在微生物发酵后,菌体用缓冲液重悬,超声破碎,离心,收集上清过柱层析,洗脱目的蛋白,即得纯化的L-赖氨酸脱羧酶突变体。
本发明的第四个方面在于提供一种生产D-鸟氨酸的方法。该方法通过对外消旋的DL-鸟氨酸进行酶促拆分来制备D-鸟氨酸,即,以外消旋体DL-鸟氨酸为底物,使用上述L-赖氨酸脱羧酶突变体或者上述微生物来催化L-鸟氨酸发生脱羧反应,得到未反应的残留D-鸟氨酸。
上述生产D-鸟氨酸的外消旋体拆分反应体系可以为缓冲液体系比如磷酸盐缓冲液,pH5.0-9.0,优选pH6.0-8.0、pH6.2-7.5,例如为pH6.5-7.0。反应温度可以为25-45℃,例如28-42℃,优选30-38℃、最优选35-37℃。
该反应体系中不需要添加有磷酸吡哆醛(PLP),不像鸟氨酸脱羧酶那样需要PLP作为辅酶。而且,本发明得到的L-赖氨酸脱羧酶突变体SEQ ID NO:4和SEQ ID NO:6都对于脱羧产物腐胺具有较高浓度的耐受性,即,产物抑制性较小,可以在反应体系中加入较高浓度的DL-鸟氨酸,提高时空反应速率,这对于拆分反应也是有利的。
与来源的野生型L-赖氨酸脱羧酶SEQ ID NO:1相比,本发明获得的L-赖氨酸脱羧酶突变体SEQ ID NO:4和SEQ ID NO:6具有显著提高的酶活力,能够有效催化L-鸟氨酸的脱羧反应,从而通过外消旋体拆分法制备D-鸟氨酸。
具体实施方式
为了获得高酶活力的能催化L-鸟氨酸脱羧的L-赖氨酸脱羧酶,为工业化生产D-鸟氨酸提供基础,发明人对于赖氨酸脱羧酶进行了大量的筛选比较,选择底物抑制性低、产物抑制性低和对L-鸟氨酸立体专一性高的酶品种,最终选择反刍月形单胞菌(Selenomonasruminantium)来源的赖氨酸脱羧酶(UniProtKB-O50657)作为改造对象。该野生型Ldc的氨基酸序列为SEQ ID NO:1:
MKNFRLSEKEVKTLAKRIPTPFLVASLDKVEENYQFMRRHLPRAGVFYAMKANPTPEILSLLAGLGSHFDVASAGEMEILHELGVDGSQMIYANPVKDARGLKAAADYNVRRFTFDDPSEIDKMAKAVPGADVLVRIAVRNNKALVDLNTKFGAPVEEALDLLKAAQDAGLHAMGICFHVGSQSLSTAAYEEALLVARRLFDEAEEMGMHLTDLDIGGGFPVPDAKGLNVDLAAMMEAINKQIDRLFPDTAVWTEPGRYMCGTAVNLVTSVIGTKTRGEQPWYILDEGIYGCFSGIMYDHWTYPLHCFGKGNKKPSTFGGPSCDGIDVLYRDFMAPELKIGDKVLVTEMGSYTSVSATRFNGFYLAPTIIFEDQPEYAARLTEDDDVKKKAAV(SEQ ID NO:1)。
该野生酶的编码基因(KEGG,SELR_16380)的碱基序列为SEQ ID NO:2:
atgaaaaatttcagacttagcgaaaaagaagtaaaaacgcttgccaagcgtatcccgacgccctttttggtggcttcactggacaaggttgaggaaaactaccagtttatgcgccgtcatttgccgcgggcgggagtgttttatgccatgaaggcgaatcctacgccagaaatactgtccctgctggctggccttggttctcactttgatgtggcctctgccggggagatggagatcctccatgaattgggcgtagatggttcccagatgatatatgccaatccggtaaaggatgcccgtggcctcaaggctgcggctgactacaatgtccgccggtttactttcgacgatccgtcggaaatcgacaagatggccaaggctgtgccgggagccgatgtgctggtgcgcatcgccgtgcgcaacaacaaagctttggtggatctgaatacgaagtttggtgcgccggtggaagaagcgctggatcttttaaaggctgcgcaggatgctggcctgcatgccatggggatttgcttccatgtgggcagccagtccctgtctacggcggcttatgaggaagccctgctggtggctcgtaggctctttgatgaggcggaagaaatgggcatgcacctgactgacctcgacatcggcggcggtttccctgttcccgatgccaaggggctcaatgtggatctggcggccatgatggaagccatcaacaagcagatcgaccgcctgttcccggatacagctgtttggacggaaccgggccgttatatgtgcggtacggcggtgaacctcgtcacatcggttatcggcacgaaaacccgtggtgagcagccttggtatatcttagatgaaggcatctatggctgcttctccggcatcatgtatgaccactggacgtacccgcttcattgcttcggcaaggggaataagaaaccttcgactttcggcggccccagctgcgatggcatcgatgtgctctatcgcgacttcatggcaccggagctcaagatcggggacaaggtgctggtgacggaaatgggttcctataccagcgtcagcgctacgcgtttcaacggtttctacctggcgcccaccatcatctttgaggaccagccggaatatgcagcccgtctgacggaagatgatgatgtgaagaaaaaggcggctgtataa(SEQ ID NO:2)。
本发明对野生酶Ldc的基因序列SEQ ID NO:2进行点突变。通过易错PCR技术获得一个氨基酸第136位点精氨酸(R)取代的突变体氨基酸序列,然后采用组合突变的技术,将包括64位甘氨酸(G)、67位丝氨酸(S)、第207位甲硫氨酸(M)、第241位赖氨酸(K)、第310位赖氨酸(K)进行组合突变,获得本发明中具有氨基酸序列SEQ ID NO:4和SEQ ID NO:6的突变体,两者的氨基酸序列保持了90%以上的同源性。
在本发明中,术语“野生(型)”、“野生酶”、“野生型酶”表示相同的意义,都是指野生型L-赖氨酸脱羧酶SEQ ID NO:1。
本发明的L-赖氨酸脱羧酶突变体的氨基酸数量有393个,序列明确,因此本领域技术人员很容易获得其编码基因、包含这些基因的表达盒和质粒、以及包含该质粒的转化体。
这些基因、表达盒、质粒、转化体可以通过本领域技术人员所熟知的基因工程构建方式获得。
上述转化体宿主可以使任何适合表达L-赖氨酸脱羧酶的微生物,包括细菌和真菌。优选微生物是枯草芽孢杆菌、毕赤酵母、酿酒酵母、或者大肠杆菌,优选大肠杆菌,更优选大肠杆菌BL21(DE3)。
为了在不同微生物中进行蛋白质SEQ ID NO:4和SEQ ID NO:6的最佳表达,可以针对特定的微生物比如大肠杆菌、毕赤酵母、或者枯草芽孢杆菌进行密码子优化。密码子优化是可用于通过增加感兴趣基因的翻译效率使生物体中蛋白质表达最大化的一种技术。不同的生物体由于突变倾向和天然选择而通常示出对于编码相同氨基酸的一些密码子之一的特殊偏好性。例如,在生长快速的微生物如大肠杆菌中,优化密码子反映出其各自的基因组tRNA库的组成。因此,在生长快速的微生物中,氨基酸的低频率密码子可以被用于相同氨基酸的但高频率的密码子置换。因此,优化的DNA序列的表达在快速生长的微生物中得以改良。
当作为生物催化剂用于通过外消旋体拆分法生产D-鸟氨酸时,本发明的L-赖氨酸脱羧酶突变体呈现酶的形式、或者其表达微生物菌体的形式。上述酶的形式包括游离酶、固定化酶,包括纯化酶、载体固定的酶等。
作为另一种可选的实施方式,可以采用表达上述L-赖氨酸脱羧酶突变体的微生物菌体作为酶催化反应的生物催化剂。微生物可以呈菌体或者其细胞破碎物形式,菌体的形式包括存活菌体和死亡菌体,因为当微生物比如枯草芽孢杆菌、毕赤酵母、酿酒酵母或者大肠杆菌不再进行发酵增殖、而是用于酶催化反应时,本身就是一种天然的固定化酶,而且不需要进行破碎处理、甚至提取纯化处理,就可以作为一种酶制剂用于催化反应。由于反应底物和反应产物都是小分子化合物,可以很方便地穿过菌体的生物屏障--细胞膜,因此不需要对菌体进行破碎处理,这在经济方面是有利的。
以下结合具体实施例对本发明做进一步详细说明。应理解,以下实施例仅用于说明本发明而非用于限定本发明的范围。
本文中涉及到多种物质的添加量、含量及浓度,其中所述的百分含量,除特别说明外,皆指质量百分含量。
实施例
材料和方法
实施例中引物和基因合成、测序由南京金唯智生物技术有限公司完成。
实施例中的分子生物学实验包括质粒构建、酶切、感受态细胞、转化等主要参考《分子克隆实验指南》(第三版),J.萨姆布鲁克,D.W.拉塞尔(美)编著,黄培堂等译,科学出版社,北京,2002)进行。必要时可以通过简单试验确定具体实验条件。
PCR扩增实验根据质粒或DNA模板供应商提供的反应条件或试剂盒说明书进行。必要时可以通过简单试验予以调整。
主要培养基:
LB液体培养基:10g/L胰蛋白胨,5g/L酵母提取物,10g/L氯化钠。(固体培养基另加20g/L琼脂粉。)
TB培养基:24g/L酵母提取物、12g/L胰蛋白胨、16.43g/L K2HPO4.3H2O、2.31g/LKH2PO4、5g/L甘油,pH7.0-7.5。(固体培养基另加20g/L琼脂粉。)
质粒pSH质粒由浙江华睿生物技术有限公司惠赠。
质粒pSH-Ldc质粒由洛阳华荣生物技术有限保存,任何单位和个人都可以获得该质粒及相关质粒和细菌用于验证本发明,但未经洛阳华荣生物技术有限允许不得用作其他用途,包括开发利用、科学研究和教学。
L-赖氨酸脱羧酶催化L-鸟氨酸脱酸的酶活力测定方法如下:
反应体系:1ml,50mM L-鸟氨酸,1mM PLP,0.1M,pH6.5的磷酸钾缓冲液,投酶量1%w/v(菌体或者破壁菌体)。
反应方案:将反应体系配制完成后,加入1%w/v(菌体或者破壁菌体),37℃反应10min;反应完成后90℃加热5min终止反应;加入等体积的2×赖氨酸氧化酶/过氧化酶混合液(0.1U/ml赖氨酸氧化酶,1U/ml过氧化酶,3.6mM 2,2'-联氮双(3-乙基苯并噻唑啉-6-磺酸)(ABTS),0.1M,pH8.0的磷酸钾缓冲液),混合均匀;13000rpm离心5min,上清检测OD412。
HPLC检测方法:安捷伦1260高效液相色谱,流动相A:流动相B=1:3,流动相A为浓度为3%的NaH2PO4溶液,流动相B为水,色谱柱aglient SB-AQ,进样量5μL,流速1ml/min,柱温度25℃,波长205nm。
酶活定义:在pH6.5、温度37℃的条件下,每分钟催化底物L-鸟氨酸产生1微摩尔(μmol)腐胺所需要的酶量定义为1个单位(U)。
为描述方便起见,在实施例中有时将某一种酶蛋白编号、其基因编号和其表达菌株编号混用/套用,本领域技术人员容易理解它们在不同的环境指代不同的生物体含义。
实施例1:野生型Ldc表达菌株构建
委托苏州金维智生物技术有限公司对野生型L-赖氨酸脱羧酶的基因碱基序列SEQID NO:2进行全基因合成,亚克隆到pSH质粒(浙江华睿生物技术有限公司提供)中的NdeI/XhoI位点,得到用于表达野生型L-赖氨酸脱羧酶SEQ ID NO:1的质粒pSH-ldc。
然后将质粒pSH-ldc转入大肠杆菌DH5α感受态细胞中,菌株按常规方法培养后,提取质粒,测序验证正确,备用。
将重组质粒pSH-ldc电转化大肠杆菌E.coli BL21(DE3)(Invitrogen公司),得到表达野生型L-赖氨酸脱羧酶SEQ ID NO:1的重组菌株,命名为BL21(DE3)-Ldc或者简称Ldc。
实施例2:易错PCR法构建Ldc随机突变点库和筛选
2.1易错PCR法构建Ldc随机突变点库构建
以序列SEQ ID NO:2为模板,应用易错PCR技术构建随机突变体库。设计如下引物对ldc-Nde1-F和ldc-Xho1-R:
正向引物ldc-Nde1-F:5’-ATGAAAAATTTCAGACTTAGCGAAA-3’,
反向引物ldc-Xho1-R:5’-CTCGAGTTATACAGCCGCCTTTTTCT-3’。
50μL易错PCR反应体系包括:50ng质粒模板pSH-ldc,30pmol一对引物ldc-Nde1-F和ldc-Xho1-R,1X Taq buffer,0.2mM dGTP,0.2mM dATP,1mM dCTP,1mM dTTP,7mM MgCl2,(0mM、0.05mM、0.1mM、0.15mM、0.2mM)MnCl2,2.5个单位的Taq酶(Fermentas)。
PCR反应条件为:95℃5min;94℃30s,55℃30s,72℃2min/kbp;30个循环;72℃10min。胶回收1.2kb随机突变片段作为大引物,用KOD-plus DNA聚合酶做MegaPrimer PCR:94℃5min,;98℃10s,60℃30s,68℃2min/kbp,25个循环;68℃10min。
DpnI消化质粒模板,电转化大肠杆菌E.coli BL21(DE3),得到超过104个克隆的随机突变库。
2.2突变体库的高通量筛选
选取突变体库中的转化子接种到含700μL LB培养基的96孔深孔培养板中,培养基中含100μg/mL卡那霉素,37℃培养6h后,加入终浓度0.1mM IPTG后,降温至25℃,培养过夜。5000rpm离心10min,弃上清,置于-70℃冷冻1h,室温融化30min。加入200μL含50mM Tris-HCl(pH7.5),重悬菌体,用于酶活力测定。
2.3高酶活力突变体的筛选
底物反应液:50mM的L-鸟氨酸,100mM的磷酸钾缓冲液调节pH6.5。
终止反应条件:90℃,5min。
将实施例2中获得的突变体库菌株的100μL菌液加入到100μL底物反应液中,37℃反应10min;反应完成后90℃加热5min终止反应;然后5000rpm离心10min。离心后取上清,加入等体积的2×赖氨酸氧化酶/过氧化酶混合液(0.1U/ml赖氨酸氧化酶,1U/ml过氧化酶,3.6mM 2,2'-联氮双(3-乙基苯并噻唑啉-6-磺酸)(ABTS),0.1M,pH8.0的磷酸钾缓冲液),混合均匀;然后13000rpm离心5min,上清检测OD412。
筛选酶活力比实施例1中所得BL21(DE3)-Ldc菌株(Ldc)提高的突变菌株,构建了不少于5000克隆子的ldc酶活力提高的突变体库。
实施例3:Ldc的定向进化筛选
3.1对于实施例2中筛选得到的突变菌株,进一步验证其酶活力,其中两个突变菌株的酶活力提高了两倍以上,根据编号分别命名为Ldc-1298和Ldc-2590。
通过基因比较组学的研究方法,对菌株Ldc-1298和Ldc-2590进行基因组测序后,确定两个突变菌株中Ldc的突变位点,如表1所示。
表1:菌株对L-鸟氨酸脱羧反应的催化活力比较
*酶比活力:以野生酶的发酵活力(U/ml)与菌体浓度OD(OD/ml)的比值为100%。
酶活力比较显示,菌株Ldc-1298相比提高了2.4倍,而Ldc-2590则提高了11.3倍。有趣的是,它们都在Ldc的第136位氨基酸发生了R136V突变。
实施例4:突变体考察
委托南京金唯智生物技术有限公司分别对菌株Ldc-1298中编码L-赖氨酸脱羧酶突变体的基因碱基序列SEQ ID NO:3、菌株Ldc-2590中编码L-赖氨酸脱羧酶突变体的基因碱基序列SEQ ID NO:5进行全基因合成,亚克隆到pSH质粒(浙江华睿生物技术有限公司提供)中的NdeI/XhoI位点,分别得到用于表达L-赖氨酸脱羧酶突变体SEQ ID NO:4和SEQ IDNO:6的质粒pSH-ldc-1298和pSH-ldc-2590。
然后分别将重组质粒质粒pSH-ldc-1298和pSH-ldc-2590电转化大肠杆菌E.coliBL21(DE3)(Invitrogen公司)感受态细胞中,涂含卡那霉素的LB平板培养过夜,分别挑选10个单菌落,接种到含有LB培养基的试管中,培养过夜,离心收集菌体,抽提质粒,基因测序确定突变正确,分别得到表达L-赖氨酸脱羧酶突变体SEQ ID NO:4和SEQ ID NO:6的重组菌株,仍命名为Ldc-1298和Ldc-2590。
以下实验重点考察重组菌株Ldc-2590。
实施例5:突变酶Ldc-2590考察
从含有工程菌Ldc-2590的LB平板上挑选单克隆,接种到5ml LB培养基中,37℃培养过夜;1%v/v接种到含有100ml TB培养基的1000ml摇瓶中培养4-6小时,OD600达到1.2-1.5,加入0.2mM的IPTG诱导,降温到25℃,继续培养10-16小时,离心获得菌体,-80℃冻存24小时备用。
反应体系200mL,底物DL-鸟氨酸100g/L,加酶量分别为2%、4%、6%、8%w/v菌浓度,于37℃,200rpm下,控制pH 6.5,反应2h,测定腐胺生成量,计算产物生成率。结果如表2所示。
上述实验结果表明,相对于野生L-赖氨酸脱羧酶SEQ ID NO:1,L-赖氨酸脱羧酶突变体SEQ ID NO:4和SEQ ID NO:6的酶活力都有了明显提高,为酶法拆分外消旋体制备D-鸟氨酸方法的工业化奠定了基础。
序列表
<110> 洛阳华荣生物技术有限公司
<120> 用于制备D-鸟氨酸的赖氨酸脱羧酶突变体
<130> SHPI2110013
<160> 6
<170> SIPOSequenceListing 1.0
<210> 1
<211> 393
<212> PRT
<213> Selenomonas ruminantium
<400> 1
Met Lys Asn Phe Arg Leu Ser Glu Lys Glu Val Lys Thr Leu Ala Lys
1 5 10 15
Arg Ile Pro Thr Pro Phe Leu Val Ala Ser Leu Asp Lys Val Glu Glu
20 25 30
Asn Tyr Gln Phe Met Arg Arg His Leu Pro Arg Ala Gly Val Phe Tyr
35 40 45
Ala Met Lys Ala Asn Pro Thr Pro Glu Ile Leu Ser Leu Leu Ala Gly
50 55 60
Leu Gly Ser His Phe Asp Val Ala Ser Ala Gly Glu Met Glu Ile Leu
65 70 75 80
His Glu Leu Gly Val Asp Gly Ser Gln Met Ile Tyr Ala Asn Pro Val
85 90 95
Lys Asp Ala Arg Gly Leu Lys Ala Ala Ala Asp Tyr Asn Val Arg Arg
100 105 110
Phe Thr Phe Asp Asp Pro Ser Glu Ile Asp Lys Met Ala Lys Ala Val
115 120 125
Pro Gly Ala Asp Val Leu Val Arg Ile Ala Val Arg Asn Asn Lys Ala
130 135 140
Leu Val Asp Leu Asn Thr Lys Phe Gly Ala Pro Val Glu Glu Ala Leu
145 150 155 160
Asp Leu Leu Lys Ala Ala Gln Asp Ala Gly Leu His Ala Met Gly Ile
165 170 175
Cys Phe His Val Gly Ser Gln Ser Leu Ser Thr Ala Ala Tyr Glu Glu
180 185 190
Ala Leu Leu Val Ala Arg Arg Leu Phe Asp Glu Ala Glu Glu Met Gly
195 200 205
Met His Leu Thr Asp Leu Asp Ile Gly Gly Gly Phe Pro Val Pro Asp
210 215 220
Ala Lys Gly Leu Asn Val Asp Leu Ala Ala Met Met Glu Ala Ile Asn
225 230 235 240
Lys Gln Ile Asp Arg Leu Phe Pro Asp Thr Ala Val Trp Thr Glu Pro
245 250 255
Gly Arg Tyr Met Cys Gly Thr Ala Val Asn Leu Val Thr Ser Val Ile
260 265 270
Gly Thr Lys Thr Arg Gly Glu Gln Pro Trp Tyr Ile Leu Asp Glu Gly
275 280 285
Ile Tyr Gly Cys Phe Ser Gly Ile Met Tyr Asp His Trp Thr Tyr Pro
290 295 300
Leu His Cys Phe Gly Lys Gly Asn Lys Lys Pro Ser Thr Phe Gly Gly
305 310 315 320
Pro Ser Cys Asp Gly Ile Asp Val Leu Tyr Arg Asp Phe Met Ala Pro
325 330 335
Glu Leu Lys Ile Gly Asp Lys Val Leu Val Thr Glu Met Gly Ser Tyr
340 345 350
Thr Ser Val Ser Ala Thr Arg Phe Asn Gly Phe Tyr Leu Ala Pro Thr
355 360 365
Ile Ile Phe Glu Asp Gln Pro Glu Tyr Ala Ala Arg Leu Thr Glu Asp
370 375 380
Asp Asp Val Lys Lys Lys Ala Ala Val
385 390
<210> 2
<211> 1182
<212> DNA
<213> Selenomonas ruminantium
<400> 2
atgaaaaatt tcagacttag cgaaaaagaa gtaaaaacgc ttgccaagcg tatcccgacg 60
ccctttttgg tggcttcact ggacaaggtt gaggaaaact accagtttat gcgccgtcat 120
ttgccgcggg cgggagtgtt ttatgccatg aaggcgaatc ctacgccaga aatactgtcc 180
ctgctggctg gccttggttc tcactttgat gtggcctctg ccggggagat ggagatcctc 240
catgaattgg gcgtagatgg ttcccagatg atatatgcca atccggtaaa ggatgcccgt 300
ggcctcaagg ctgcggctga ctacaatgtc cgccggttta ctttcgacga tccgtcggaa 360
atcgacaaga tggccaaggc tgtgccggga gccgatgtgc tggtgcgcat cgccgtgcgc 420
aacaacaaag ctttggtgga tctgaatacg aagtttggtg cgccggtgga agaagcgctg 480
gatcttttaa aggctgcgca ggatgctggc ctgcatgcca tggggatttg cttccatgtg 540
ggcagccagt ccctgtctac ggcggcttat gaggaagccc tgctggtggc tcgtaggctc 600
tttgatgagg cggaagaaat gggcatgcac ctgactgacc tcgacatcgg cggcggtttc 660
cctgttcccg atgccaaggg gctcaatgtg gatctggcgg ccatgatgga agccatcaac 720
aagcagatcg accgcctgtt cccggataca gctgtttgga cggaaccggg ccgttatatg 780
tgcggtacgg cggtgaacct cgtcacatcg gttatcggca cgaaaacccg tggtgagcag 840
ccttggtata tcttagatga aggcatctat ggctgcttct ccggcatcat gtatgaccac 900
tggacgtacc cgcttcattg cttcggcaag gggaataaga aaccttcgac tttcggcggc 960
cccagctgcg atggcatcga tgtgctctat cgcgacttca tggcaccgga gctcaagatc 1020
ggggacaagg tgctggtgac ggaaatgggt tcctatacca gcgtcagcgc tacgcgtttc 1080
aacggtttct acctggcgcc caccatcatc tttgaggacc agccggaata tgcagcccgt 1140
ctgacggaag atgatgatgt gaagaaaaag gcggctgtat aa 1182
<210> 3
<211> 1182
<212> DNA
<213> 人工序列()
<400> 3
atgaaaaatt tcagacttag cgaaaaagaa gtaaaaacgc ttgccaagcg tatcccgacg 60
ccctttttgg tggcttcact ggacaaggtt gaggaaaact accagtttat gcgccgtcat 120
ttgccgcggg cgggagtgtt ttatgccatg aaggcgaatc ctacgccaga aatactgtcc 180
ctgctggctg atcttggttc tcactttgat gtggcctctg ccggggagat ggagatcctc 240
catgaattgg gcgtagatgg ttcccagatg atatatgcca atccggtaaa ggatgcccgt 300
ggcctcaagg ctgcggctga ctacaatgtc cgccggttta ctttcgacga tccgtcggaa 360
atcgacaaga tggccaaggc tgtgccggga gccgatgtgc tggtggtgat cgccgtgcgc 420
aacaacaaag ctttggtgga tctgaatacg aagtttggtg cgccggtgga agaagcgctg 480
gatcttttaa aggctgcgca ggatgctggc ctgcatgcca tggggatttg cttccatgtg 540
ggcagccagt ccctgtctac ggcggcttat gaggaagccc tgctggtggc tcgtaggctc 600
tttgatgagg cggaagaaca tggcatgcac ctgactgacc tcgacatcgg cggcggtttc 660
cctgttcccg atgccaaggg gctcaatgtg gatctggcgg ccatgatgga agccatcaac 720
aagcagatcg accgcctgtt cccggataca gctgtttgga cggaaccggg ccgttatatg 780
tgcggtacgg cggtgaacct cgtcacatcg gttatcggca cgaaaacccg tggtgagcag 840
ccttggtata tcttagatga aggcatctat ggctgcttct ccggcatcat gtatgaccac 900
tggacgtacc cgcttcattg cttcggcaag gggaataaga aaccttcgac tttcggcggc 960
cccagctgcg atggcatcga tgtgctctat cgcgacttca tggcaccgga gctcaagatc 1020
ggggacaagg tgctggtgac ggaaatgggt tcctatacca gcgtcagcgc tacgcgtttc 1080
aacggtttct acctggcgcc caccatcatc tttgaggacc agccggaata tgcagcccgt 1140
ctgacggaag atgatgatgt gaagaaaaag gcggctgtat aa 1182
<210> 4
<211> 393
<212> PRT
<213> 人工序列()
<400> 4
Met Lys Asn Phe Arg Leu Ser Glu Lys Glu Val Lys Thr Leu Ala Lys
1 5 10 15
Arg Ile Pro Thr Pro Phe Leu Val Ala Ser Leu Asp Lys Val Glu Glu
20 25 30
Asn Tyr Gln Phe Met Arg Arg His Leu Pro Arg Ala Gly Val Phe Tyr
35 40 45
Ala Met Lys Ala Asn Pro Thr Pro Glu Ile Leu Ser Leu Leu Ala Asp
50 55 60
Leu Gly Ser His Phe Asp Val Ala Ser Ala Gly Glu Met Glu Ile Leu
65 70 75 80
His Glu Leu Gly Val Asp Gly Ser Gln Met Ile Tyr Ala Asn Pro Val
85 90 95
Lys Asp Ala Arg Gly Leu Lys Ala Ala Ala Asp Tyr Asn Val Arg Arg
100 105 110
Phe Thr Phe Asp Asp Pro Ser Glu Ile Asp Lys Met Ala Lys Ala Val
115 120 125
Pro Gly Ala Asp Val Leu Val Val Ile Ala Val Arg Asn Asn Lys Ala
130 135 140
Leu Val Asp Leu Asn Thr Lys Phe Gly Ala Pro Val Glu Glu Ala Leu
145 150 155 160
Asp Leu Leu Lys Ala Ala Gln Asp Ala Gly Leu His Ala Met Gly Ile
165 170 175
Cys Phe His Val Gly Ser Gln Ser Leu Ser Thr Ala Ala Tyr Glu Glu
180 185 190
Ala Leu Leu Val Ala Arg Arg Leu Phe Asp Glu Ala Glu Glu His Gly
195 200 205
Met His Leu Thr Asp Leu Asp Ile Gly Gly Gly Phe Pro Val Pro Asp
210 215 220
Ala Lys Gly Leu Asn Val Asp Leu Ala Ala Met Met Glu Ala Ile Asn
225 230 235 240
Lys Gln Ile Asp Arg Leu Phe Pro Asp Thr Ala Val Trp Thr Glu Pro
245 250 255
Gly Arg Tyr Met Cys Gly Thr Ala Val Asn Leu Val Thr Ser Val Ile
260 265 270
Gly Thr Lys Thr Arg Gly Glu Gln Pro Trp Tyr Ile Leu Asp Glu Gly
275 280 285
Ile Tyr Gly Cys Phe Ser Gly Ile Met Tyr Asp His Trp Thr Tyr Pro
290 295 300
Leu His Cys Phe Gly Lys Gly Asn Lys Lys Pro Ser Thr Phe Gly Gly
305 310 315 320
Pro Ser Cys Asp Gly Ile Asp Val Leu Tyr Arg Asp Phe Met Ala Pro
325 330 335
Glu Leu Lys Ile Gly Asp Lys Val Leu Val Thr Glu Met Gly Ser Tyr
340 345 350
Thr Ser Val Ser Ala Thr Arg Phe Asn Gly Phe Tyr Leu Ala Pro Thr
355 360 365
Ile Ile Phe Glu Asp Gln Pro Glu Tyr Ala Ala Arg Leu Thr Glu Asp
370 375 380
Asp Asp Val Lys Lys Lys Ala Ala Val
385 390
<210> 5
<211> 1182
<212> DNA
<213> 人工序列()
<400> 5
atgaaaaatt tcagacttag cgaaaaagaa gtaaaaacgc ttgccaagcg tatcccgacg 60
ccctttttgg tggcttcact ggacaaggtt gaggaaaact accagtttat gcgccgtcat 120
ttgccgcggg cgggagtgtt ttatgccatg aaggcgaatc ctacgccaga aatactgtcc 180
ctgctggctg gccttggtat ccactttgat gtggcctctg ccggggagat ggagatcctc 240
catgaattgg gcgtagatgg ttcccagatg atatatgcca atccggtaaa ggatgcccgt 300
ggcctcaagg ctgcggctga ctacaatgtc cgccggttta ctttcgacga tccgtcggaa 360
atcgacaaga tggccaaggc tgtgccggga gccgatgtgc tggtggtgat cgccgtgcgc 420
aacaacaaag ctttggtgga tctgaatacg aagtttggtg cgccggtgga agaagcgctg 480
gatcttttaa aggctgcgca ggatgctggc ctgcatgcca tggggatttg cttccatgtg 540
ggcagccagt ccctgtctac ggcggcttat gaggaagccc tgctggtggc tcgtaggctc 600
tttgatgagg cggaagaaat gggcatgcac ctgactgacc tcgacatcgg cggcggtttc 660
cctgttcccg atgccaaggg gctcaatgtg gatctggcgg ccatgatgga agccatcaac 720
gcccagatcg accgcctgtt cccggataca gctgtttgga cggaaccggg ccgttatatg 780
tgcggtacgg cggtgaacct cgtcacatcg gttatcggca cgaaaacccg tggtgagcag 840
ccttggtata tcttagatga aggcatctat ggctgcttct ccggcatcat gtatgaccac 900
tggacgtacc cgcttcattg cttcggcggc gggaataaga aaccttcgac tttcggcggc 960
cccagctgcg atggcatcga tgtgctctat cgcgacttca tggcaccgga gctcaagatc 1020
ggggacaagg tgctggtgac ggaaatgggt tcctatacca gcgtcagcgc tacgcgtttc 1080
aacggtttct acctggcgcc caccatcatc tttgaggacc agccggaata tgcagcccgt 1140
ctgacggaag atgatgatgt gaagaaaaag gcggctgtat aa 1182
<210> 6
<211> 393
<212> PRT
<213> 人工序列()
<400> 6
Met Lys Asn Phe Arg Leu Ser Glu Lys Glu Val Lys Thr Leu Ala Lys
1 5 10 15
Arg Ile Pro Thr Pro Phe Leu Val Ala Ser Leu Asp Lys Val Glu Glu
20 25 30
Asn Tyr Gln Phe Met Arg Arg His Leu Pro Arg Ala Gly Val Phe Tyr
35 40 45
Ala Met Lys Ala Asn Pro Thr Pro Glu Ile Leu Ser Leu Leu Ala Gly
50 55 60
Leu Gly Ile His Phe Asp Val Ala Ser Ala Gly Glu Met Glu Ile Leu
65 70 75 80
His Glu Leu Gly Val Asp Gly Ser Gln Met Ile Tyr Ala Asn Pro Val
85 90 95
Lys Asp Ala Arg Gly Leu Lys Ala Ala Ala Asp Tyr Asn Val Arg Arg
100 105 110
Phe Thr Phe Asp Asp Pro Ser Glu Ile Asp Lys Met Ala Lys Ala Val
115 120 125
Pro Gly Ala Asp Val Leu Val Val Ile Ala Val Arg Asn Asn Lys Ala
130 135 140
Leu Val Asp Leu Asn Thr Lys Phe Gly Ala Pro Val Glu Glu Ala Leu
145 150 155 160
Asp Leu Leu Lys Ala Ala Gln Asp Ala Gly Leu His Ala Met Gly Ile
165 170 175
Cys Phe His Val Gly Ser Gln Ser Leu Ser Thr Ala Ala Tyr Glu Glu
180 185 190
Ala Leu Leu Val Ala Arg Arg Leu Phe Asp Glu Ala Glu Glu Met Gly
195 200 205
Met His Leu Thr Asp Leu Asp Ile Gly Gly Gly Phe Pro Val Pro Asp
210 215 220
Ala Lys Gly Leu Asn Val Asp Leu Ala Ala Met Met Glu Ala Ile Asn
225 230 235 240
Ala Gln Ile Asp Arg Leu Phe Pro Asp Thr Ala Val Trp Thr Glu Pro
245 250 255
Gly Arg Tyr Met Cys Gly Thr Ala Val Asn Leu Val Thr Ser Val Ile
260 265 270
Gly Thr Lys Thr Arg Gly Glu Gln Pro Trp Tyr Ile Leu Asp Glu Gly
275 280 285
Ile Tyr Gly Cys Phe Ser Gly Ile Met Tyr Asp His Trp Thr Tyr Pro
290 295 300
Leu His Cys Phe Gly Gly Gly Asn Lys Lys Pro Ser Thr Phe Gly Gly
305 310 315 320
Pro Ser Cys Asp Gly Ile Asp Val Leu Tyr Arg Asp Phe Met Ala Pro
325 330 335
Glu Leu Lys Ile Gly Asp Lys Val Leu Val Thr Glu Met Gly Ser Tyr
340 345 350
Thr Ser Val Ser Ala Thr Arg Phe Asn Gly Phe Tyr Leu Ala Pro Thr
355 360 365
Ile Ile Phe Glu Asp Gln Pro Glu Tyr Ala Ala Arg Leu Thr Glu Asp
370 375 380
Asp Asp Val Lys Lys Lys Ala Ala Val
385 390
Claims (10)
1.一种L-赖氨酸脱羧酶突变体,其氨基酸序列为SEQ ID NO:4或SEQ ID NO:6。
2.编码如权利要求1所述L-赖氨酸脱羧酶突变体的基因。
3.如权利要求2所述的基因,其特征在于,编码L-赖氨酸脱羧酶突变体SEQ ID NO:4的基因的核苷酸序列为SEQ ID NO:3,编码L-赖氨酸脱羧酶突变体SEQ ID NO:6的基因的核苷酸序列为SEQ ID NO:5。
4.包含如权利要求3所述基因的质粒。
5.一种微生物,其表达如权利要求1所述的L-赖氨酸脱羧酶突变体。
6.如权利要求5所述的微生物,其特征在于,所述微生物选自大肠杆菌、毕赤酵母、枯草芽孢杆菌。
7.如权利要求6所述的微生物,其特征在于,所述微生物是大肠杆菌BL21(DE3)。
8.一种生产D-鸟氨酸的方法,其特征在于,以外消旋体DL-鸟氨酸为底物,使用如权利要求1所述的L-赖氨酸脱羧酶突变体、或者如权利要求5-7中任一项所述的微生物催化L-鸟氨酸发生脱羧反应,得到未反应的D-鸟氨酸。
9.如权利要求8所述的方法,其特征在于,反应体系为磷酸盐缓冲液,pH5.0-9.0。
10.如权利要求8所述的方法,其特征在于,反应温度为25-45℃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110102476.6A CN112746067B (zh) | 2021-01-26 | 2021-01-26 | 用于制备d-鸟氨酸的赖氨酸脱羧酶突变体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110102476.6A CN112746067B (zh) | 2021-01-26 | 2021-01-26 | 用于制备d-鸟氨酸的赖氨酸脱羧酶突变体 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN112746067A true CN112746067A (zh) | 2021-05-04 |
CN112746067B CN112746067B (zh) | 2023-10-31 |
Family
ID=75653119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110102476.6A Active CN112746067B (zh) | 2021-01-26 | 2021-01-26 | 用于制备d-鸟氨酸的赖氨酸脱羧酶突变体 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112746067B (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112746066A (zh) * | 2021-01-25 | 2021-05-04 | 洛阳华荣生物技术有限公司 | 一种l-赖氨酸脱羧酶突变体及其应用 |
CN113512571A (zh) * | 2021-07-13 | 2021-10-19 | 浙江华睿生物技术有限公司 | 鸟氨酸环化脱氨酶催化合成l-哌啶酸的方法 |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107177641A (zh) * | 2016-11-03 | 2017-09-19 | 中国科学院天津工业生物技术研究所 | 新的赖氨酸脱羧酶及其应用 |
CN107208083A (zh) * | 2015-02-09 | 2017-09-26 | Cj第制糖株式会社 | 新型赖氨酸脱羧酶及利用其制备尸胺的方法 |
KR20180053631A (ko) * | 2018-05-15 | 2018-05-23 | 씨제이제일제당 (주) | 신규 라이신 디카르복실라제 및 이를 이용하여 카다베린을 생산하는 방법 |
CN108795916A (zh) * | 2018-07-16 | 2018-11-13 | 南京工业大学 | 一种赖氨酸脱羧酶突变体、其编码基因及其表达和应用 |
CN111705028A (zh) * | 2012-06-04 | 2020-09-25 | 基因组股份公司 | 制造4-羟基丁酸酯、1,4-丁二醇和相关化合物的微生物和方法 |
CN112877307A (zh) * | 2021-01-27 | 2021-06-01 | 洛阳华荣生物技术有限公司 | 一种氨基酸脱氢酶突变体及其应用 |
CN112899261A (zh) * | 2021-03-25 | 2021-06-04 | 美邦美和生物科技有限公司 | 赖氨酸脱羧酶突变体、其编码基因及应用 |
CN113302297A (zh) * | 2018-11-30 | 2021-08-24 | 齐默尔根公司 | 通过发酵产生1,5-二氨基戊烷的经改造的生物合成途径 |
CN113881657A (zh) * | 2020-07-02 | 2022-01-04 | 中国科学院过程工程研究所 | 一种用于合成戊二胺的赖氨酸脱羧酶及其应用 |
-
2021
- 2021-01-26 CN CN202110102476.6A patent/CN112746067B/zh active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111705028A (zh) * | 2012-06-04 | 2020-09-25 | 基因组股份公司 | 制造4-羟基丁酸酯、1,4-丁二醇和相关化合物的微生物和方法 |
CN107208083A (zh) * | 2015-02-09 | 2017-09-26 | Cj第制糖株式会社 | 新型赖氨酸脱羧酶及利用其制备尸胺的方法 |
CN107177641A (zh) * | 2016-11-03 | 2017-09-19 | 中国科学院天津工业生物技术研究所 | 新的赖氨酸脱羧酶及其应用 |
KR20180053631A (ko) * | 2018-05-15 | 2018-05-23 | 씨제이제일제당 (주) | 신규 라이신 디카르복실라제 및 이를 이용하여 카다베린을 생산하는 방법 |
CN108795916A (zh) * | 2018-07-16 | 2018-11-13 | 南京工业大学 | 一种赖氨酸脱羧酶突变体、其编码基因及其表达和应用 |
CN113302297A (zh) * | 2018-11-30 | 2021-08-24 | 齐默尔根公司 | 通过发酵产生1,5-二氨基戊烷的经改造的生物合成途径 |
CN113881657A (zh) * | 2020-07-02 | 2022-01-04 | 中国科学院过程工程研究所 | 一种用于合成戊二胺的赖氨酸脱羧酶及其应用 |
CN112877307A (zh) * | 2021-01-27 | 2021-06-01 | 洛阳华荣生物技术有限公司 | 一种氨基酸脱氢酶突变体及其应用 |
CN112899261A (zh) * | 2021-03-25 | 2021-06-04 | 美邦美和生物科技有限公司 | 赖氨酸脱羧酶突变体、其编码基因及应用 |
Non-Patent Citations (2)
Title |
---|
NCBI: "type III PLP-dependent enzyme [Selenomonas ruminantium]", 《GENBANK DATABASE》, pages 014424780 * |
邓洁: "用于生物合成戊二胺的新的L一赖氨酸脱梭酶基因的功能鉴定和突变研究", 《中国优秀博士学位论文全文数据库(电子期刊)》 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112746066A (zh) * | 2021-01-25 | 2021-05-04 | 洛阳华荣生物技术有限公司 | 一种l-赖氨酸脱羧酶突变体及其应用 |
CN112746066B (zh) * | 2021-01-25 | 2023-10-31 | 洛阳华荣生物技术有限公司 | 一种l-赖氨酸脱羧酶突变体及其应用 |
CN113512571A (zh) * | 2021-07-13 | 2021-10-19 | 浙江华睿生物技术有限公司 | 鸟氨酸环化脱氨酶催化合成l-哌啶酸的方法 |
CN113512571B (zh) * | 2021-07-13 | 2023-02-24 | 浙江华睿生物技术有限公司 | 鸟氨酸环化脱氨酶催化合成l-哌啶酸的方法 |
Also Published As
Publication number | Publication date |
---|---|
CN112746067B (zh) | 2023-10-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN112391372B (zh) | 一种谷氨酸脱羧酶突变体、基因工程菌及其应用 | |
CN112626056B (zh) | 一种腈水合活性专一性提高的腈水解酶突变体及其应用 | |
CN112877307B (zh) | 一种氨基酸脱氢酶突变体及其应用 | |
CN109055324B (zh) | 一种改进的酮还原酶及其应用 | |
CN112746067B (zh) | 用于制备d-鸟氨酸的赖氨酸脱羧酶突变体 | |
CN113265382A (zh) | 多聚磷酸激酶突变体 | |
CN114667346B (zh) | EanB酶突变体及其应用 | |
CN111518783A (zh) | 新型重组(R)-ω-转氨酶、突变体及其在制备西他列汀中的应用 | |
CN110872593B (zh) | 一种丝氨酸羟甲基转移酶突变体及其应用 | |
CN111808829B (zh) | 一种γ-谷氨酰甲胺合成酶突变体及其应用 | |
CN110904062B (zh) | 一株高产l-丙氨酸的菌株 | |
CN112553185B (zh) | 一种腈水解活性专一性提高的腈水解酶突变体及其应用 | |
CN110846288B (zh) | 一种谷胱甘肽双功能酶突变体及其应用 | |
CN114908129B (zh) | 用于制备(r)-4-氯-3-羟基丁酸乙酯的脱氢酶 | |
CN113061593B (zh) | 一种l-苹果酸脱氢酶突变体及其应用 | |
CN114134127A (zh) | 用于合成依克多因的二氨基丁酸乙酰转移酶突变体 | |
CN113122563A (zh) | 构建r-3-氨基丁酸生产菌的方法 | |
CN110747190B (zh) | 一种马来酸水合酶突变体及其应用 | |
CN113512571B (zh) | 鸟氨酸环化脱氨酶催化合成l-哌啶酸的方法 | |
CN114934037B (zh) | 用于生产3-氨基丙腈的天冬氨酸酶突变体 | |
CN114891820B (zh) | 一种高效合成羟基酪醇的地衣芽胞杆菌、构建方法及应用 | |
CN108866017B (zh) | 一种酶法制备β-羟基-β-甲基丁酸的方法 | |
CN114752576B (zh) | 过氧化氢酶突变体及其应用 | |
CN112877305B (zh) | 对辅酶亲和力提高的葡萄糖脱氢酶突变体 | |
CN113174375B (zh) | Aro3蛋白突变体及其应用 |
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 |