CN114437231A - 二价植物免疫蛋白ab-nac及其应用 - Google Patents
二价植物免疫蛋白ab-nac及其应用 Download PDFInfo
- Publication number
- CN114437231A CN114437231A CN202011201856.7A CN202011201856A CN114437231A CN 114437231 A CN114437231 A CN 114437231A CN 202011201856 A CN202011201856 A CN 202011201856A CN 114437231 A CN114437231 A CN 114437231A
- Authority
- CN
- China
- Prior art keywords
- nac
- protein
- plant
- fusion protein
- seq
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 108090000623 proteins and genes Proteins 0.000 title claims abstract description 61
- 102000004169 proteins and genes Human genes 0.000 title claims abstract description 40
- 108010037351 nascent-polypeptide-associated complex Proteins 0.000 claims abstract description 25
- 108020001507 fusion proteins Proteins 0.000 claims abstract description 18
- 102000037865 fusion proteins Human genes 0.000 claims abstract description 18
- 150000001413 amino acids Chemical class 0.000 claims abstract description 11
- 239000012634 fragment Substances 0.000 claims abstract description 9
- 241001558165 Alternaria sp. Species 0.000 claims abstract description 4
- 241000221960 Neurospora Species 0.000 claims abstract description 3
- 241000589634 Xanthomonas Species 0.000 claims abstract description 3
- 241000894006 Bacteria Species 0.000 claims description 20
- 230000008635 plant growth Effects 0.000 claims description 13
- 239000013612 plasmid Substances 0.000 claims description 11
- 239000013598 vector Substances 0.000 claims description 9
- 230000001939 inductive effect Effects 0.000 claims description 7
- 239000000575 pesticide Substances 0.000 claims description 7
- 230000001737 promoting effect Effects 0.000 claims description 7
- 238000000855 fermentation Methods 0.000 claims description 5
- 230000004151 fermentation Effects 0.000 claims description 5
- 239000007952 growth promoter Substances 0.000 claims 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 claims description 5
- 108020004707 nucleic acids Proteins 0.000 claims description 5
- 102000039446 nucleic acids Human genes 0.000 claims description 5
- 150000007523 nucleic acids Chemical class 0.000 claims description 5
- 239000013604 expression vector Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000002773 nucleotide Substances 0.000 claims description 4
- 125000003729 nucleotide group Chemical group 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000003337 fertilizer Substances 0.000 claims description 3
- 241000620209 Escherichia coli DH5[alpha] Species 0.000 claims description 2
- 238000007792 addition Methods 0.000 claims description 2
- 238000012217 deletion Methods 0.000 claims description 2
- 230000037430 deletion Effects 0.000 claims description 2
- 230000000813 microbial effect Effects 0.000 claims description 2
- 239000000419 plant extract Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 239000000021 stimulant Substances 0.000 claims description 2
- 238000006467 substitution reaction Methods 0.000 claims description 2
- 125000003275 alpha amino acid group Chemical group 0.000 claims 4
- 230000001900 immune effect Effects 0.000 claims 2
- 241000672609 Escherichia coli BL21 Species 0.000 claims 1
- 239000002054 inoculum Substances 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 abstract description 44
- 241000208125 Nicotiana Species 0.000 abstract description 13
- 235000002637 Nicotiana tabacum Nutrition 0.000 abstract description 13
- 230000012010 growth Effects 0.000 abstract description 10
- 230000028993 immune response Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000004044 response Effects 0.000 abstract description 5
- 208000035240 Disease Resistance Diseases 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 206010020751 Hypersensitivity Diseases 0.000 abstract description 2
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 12
- 241000588724 Escherichia coli Species 0.000 description 9
- 235000007688 Lycopersicon esculentum Nutrition 0.000 description 9
- 240000003768 Solanum lycopersicum Species 0.000 description 9
- 241000209140 Triticum Species 0.000 description 9
- 235000021307 Triticum Nutrition 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 201000010099 disease Diseases 0.000 description 6
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000006228 supernatant Substances 0.000 description 6
- 238000012795 verification Methods 0.000 description 6
- 108020004414 DNA Proteins 0.000 description 5
- 238000010353 genetic engineering Methods 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000001963 growth medium Substances 0.000 description 4
- 230000001717 pathogenic effect Effects 0.000 description 4
- 238000002415 sodium dodecyl sulfate polyacrylamide gel electrophoresis Methods 0.000 description 4
- 241000589615 Pseudomonas syringae Species 0.000 description 3
- 241000589652 Xanthomonas oryzae Species 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000007123 defense Effects 0.000 description 3
- 239000003480 eluent Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000036039 immunity Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229930027917 kanamycin Natural products 0.000 description 3
- 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 3
- 229960000318 kanamycin Drugs 0.000 description 3
- 229930182823 kanamycin A Natural products 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 108090000765 processed proteins & peptides Proteins 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- HKZAAJSTFUZYTO-LURJTMIESA-N (2s)-2-[[2-[[2-[[2-[(2-aminoacetyl)amino]acetyl]amino]acetyl]amino]acetyl]amino]-3-hydroxypropanoic acid Chemical compound NCC(=O)NCC(=O)NCC(=O)NCC(=O)N[C@@H](CO)C(O)=O HKZAAJSTFUZYTO-LURJTMIESA-N 0.000 description 2
- 241000223602 Alternaria alternata Species 0.000 description 2
- 102000030523 Catechol oxidase Human genes 0.000 description 2
- 108010031396 Catechol oxidase Proteins 0.000 description 2
- OGNJZUXUTPQVBR-BQBZGAKWSA-N Glu-Gly-Glu Chemical compound OC(=O)CC[C@H](N)C(=O)NCC(=O)N[C@@H](CCC(O)=O)C(O)=O OGNJZUXUTPQVBR-BQBZGAKWSA-N 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 102100031639 Nascent polypeptide-associated complex subunit alpha Human genes 0.000 description 2
- 102000003992 Peroxidases Human genes 0.000 description 2
- 108700023158 Phenylalanine ammonia-lyases Proteins 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 238000001042 affinity chromatography Methods 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 2
- 229930002875 chlorophyll Natural products 0.000 description 2
- 235000019804 chlorophyll Nutrition 0.000 description 2
- ATNHDLDRLWWWCB-AENOIHSZSA-M chlorophyll a Chemical compound C1([C@@H](C(=O)OC)C(=O)C2=C3C)=C2N2C3=CC(C(CC)=C3C)=[N+]4C3=CC3=C(C=C)C(C)=C5N3[Mg-2]42[N+]2=C1[C@@H](CCC(=O)OC\C=C(/C)CCC[C@H](C)CCC[C@H](C)CCCC(C)C)[C@H](C)C2=C5 ATNHDLDRLWWWCB-AENOIHSZSA-M 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 239000012636 effector Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 210000000987 immune system Anatomy 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 244000000010 microbial pathogen Species 0.000 description 2
- 101150077549 nac gene Proteins 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 108040007629 peroxidase activity proteins Proteins 0.000 description 2
- 229920001184 polypeptide Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 102000004196 processed proteins & peptides Human genes 0.000 description 2
- 239000012474 protein marker Substances 0.000 description 2
- 239000008223 sterile water Substances 0.000 description 2
- 230000004936 stimulating effect Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000014616 translation Effects 0.000 description 2
- 229960005486 vaccine Drugs 0.000 description 2
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 1
- 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
- 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 1
- PAIHPOGPJVUFJY-WDSKDSINSA-N Ala-Glu-Gly Chemical compound C[C@H](N)C(=O)N[C@@H](CCC(O)=O)C(=O)NCC(O)=O PAIHPOGPJVUFJY-WDSKDSINSA-N 0.000 description 1
- NBTGEURICRTMGL-WHFBIAKZSA-N Ala-Gly-Ser Chemical compound C[C@H](N)C(=O)NCC(=O)N[C@@H](CO)C(O)=O NBTGEURICRTMGL-WHFBIAKZSA-N 0.000 description 1
- XHNLCGXYBXNRIS-BJDJZHNGSA-N Ala-Lys-Ile Chemical compound [H]N[C@@H](C)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(O)=O XHNLCGXYBXNRIS-BJDJZHNGSA-N 0.000 description 1
- PMQXMXAASGFUDX-SRVKXCTJSA-N Ala-Lys-Leu Chemical compound CC(C)C[C@@H](C(O)=O)NC(=O)[C@@H](NC(=O)[C@H](C)N)CCCCN PMQXMXAASGFUDX-SRVKXCTJSA-N 0.000 description 1
- 241000223600 Alternaria Species 0.000 description 1
- 235000015911 Amorpha canescens Nutrition 0.000 description 1
- 240000001426 Amorpha canescens Species 0.000 description 1
- 235000004047 Amorpha fruticosa Nutrition 0.000 description 1
- OVVUNXXROOFSIM-SDDRHHMPSA-N Arg-Arg-Pro Chemical compound C1C[C@@H](N(C1)C(=O)[C@H](CCCN=C(N)N)NC(=O)[C@H](CCCN=C(N)N)N)C(=O)O OVVUNXXROOFSIM-SDDRHHMPSA-N 0.000 description 1
- RVDVDRUZWZIBJQ-CIUDSAMLSA-N Arg-Asn-Glu Chemical compound [H]N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CCC(O)=O)C(O)=O RVDVDRUZWZIBJQ-CIUDSAMLSA-N 0.000 description 1
- AGVNTAUPLWIQEN-ZPFDUUQYSA-N Arg-Ile-Glu Chemical compound CC[C@H](C)[C@@H](C(=O)N[C@@H](CCC(=O)O)C(=O)O)NC(=O)[C@H](CCCN=C(N)N)N AGVNTAUPLWIQEN-ZPFDUUQYSA-N 0.000 description 1
- LTDGPJKGJDIBQD-LAEOZQHASA-N Asn-Val-Gln Chemical compound [H]N[C@@H](CC(N)=O)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(O)=O LTDGPJKGJDIBQD-LAEOZQHASA-N 0.000 description 1
- ZEDBMCPXPIYJLW-XHNCKOQMSA-N Asp-Glu-Pro Chemical compound C1C[C@@H](N(C1)C(=O)[C@H](CCC(=O)O)NC(=O)[C@H](CC(=O)O)N)C(=O)O ZEDBMCPXPIYJLW-XHNCKOQMSA-N 0.000 description 1
- DGKCOYGQLNWNCJ-ACZMJKKPSA-N Asp-Glu-Ser Chemical compound [H]N[C@@H](CC(O)=O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O DGKCOYGQLNWNCJ-ACZMJKKPSA-N 0.000 description 1
- JGLWFWXGOINXEA-YDHLFZDLSA-N Asp-Val-Tyr Chemical compound OC(=O)C[C@H](N)C(=O)N[C@@H](C(C)C)C(=O)N[C@H](C(O)=O)CC1=CC=C(O)C=C1 JGLWFWXGOINXEA-YDHLFZDLSA-N 0.000 description 1
- 235000002566 Capsicum Nutrition 0.000 description 1
- 108020004705 Codon Proteins 0.000 description 1
- YZKOXEJTLWZOQL-GUBZILKMSA-N Cys-Gln-Leu Chemical compound CC(C)C[C@@H](C(=O)O)NC(=O)[C@H](CCC(=O)N)NC(=O)[C@H](CS)N YZKOXEJTLWZOQL-GUBZILKMSA-N 0.000 description 1
- 101000658547 Escherichia coli (strain K12) Type I restriction enzyme EcoKI endonuclease subunit Proteins 0.000 description 1
- 241001198387 Escherichia coli BL21(DE3) Species 0.000 description 1
- 101000658543 Escherichia coli Type I restriction enzyme EcoAI endonuclease subunit Proteins 0.000 description 1
- 101000658546 Escherichia coli Type I restriction enzyme EcoEI endonuclease subunit Proteins 0.000 description 1
- 101000658530 Escherichia coli Type I restriction enzyme EcoR124II endonuclease subunit Proteins 0.000 description 1
- 101000658540 Escherichia coli Type I restriction enzyme EcoprrI endonuclease subunit Proteins 0.000 description 1
- 108010040721 Flagellin Proteins 0.000 description 1
- GNMQDOGFWYWPNM-LAEOZQHASA-N Gln-Gly-Ile Chemical compound CC[C@H](C)[C@H](NC(=O)CNC(=O)[C@@H](N)CCC(N)=O)C(O)=O GNMQDOGFWYWPNM-LAEOZQHASA-N 0.000 description 1
- QBLMTCRYYTVUQY-GUBZILKMSA-N Gln-Leu-Asp Chemical compound [H]N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(O)=O)C(O)=O QBLMTCRYYTVUQY-GUBZILKMSA-N 0.000 description 1
- XFAUJGNLHIGXET-AVGNSLFASA-N Gln-Leu-Leu Chemical compound [H]N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(O)=O XFAUJGNLHIGXET-AVGNSLFASA-N 0.000 description 1
- QBEWLBKBGXVVPD-RYUDHWBXSA-N Gln-Phe-Gly Chemical compound C1=CC=C(C=C1)C[C@@H](C(=O)NCC(=O)O)NC(=O)[C@H](CCC(=O)N)N QBEWLBKBGXVVPD-RYUDHWBXSA-N 0.000 description 1
- UGSVSNXPJJDJKL-SDDRHHMPSA-N Glu-Leu-Pro Chemical compound CC(C)C[C@@H](C(=O)N1CCC[C@@H]1C(=O)O)NC(=O)[C@H](CCC(=O)O)N UGSVSNXPJJDJKL-SDDRHHMPSA-N 0.000 description 1
- HRBYTAIBKPNZKQ-AVGNSLFASA-N Glu-Lys-Lys Chemical compound NCCCC[C@@H](C(O)=O)NC(=O)[C@H](CCCCN)NC(=O)[C@@H](N)CCC(O)=O HRBYTAIBKPNZKQ-AVGNSLFASA-N 0.000 description 1
- VNCNWQPIQYAMAK-ACZMJKKPSA-N Glu-Ser-Ser Chemical compound [H]N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(=O)N[C@@H](CO)C(O)=O VNCNWQPIQYAMAK-ACZMJKKPSA-N 0.000 description 1
- KMSGYZQRXPUKGI-BYPYZUCNSA-N Gly-Gly-Asn Chemical compound NCC(=O)NCC(=O)N[C@H](C(O)=O)CC(N)=O KMSGYZQRXPUKGI-BYPYZUCNSA-N 0.000 description 1
- SCWYHUQOOFRVHP-MBLNEYKQSA-N Gly-Ile-Thr Chemical compound NCC(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)O)C(O)=O SCWYHUQOOFRVHP-MBLNEYKQSA-N 0.000 description 1
- LLZXNUUIBOALNY-QWRGUYRKSA-N Gly-Leu-Lys Chemical compound NCC(=O)N[C@@H](CC(C)C)C(=O)N[C@H](C(O)=O)CCCCN LLZXNUUIBOALNY-QWRGUYRKSA-N 0.000 description 1
- IALQAMYQJBZNSK-WHFBIAKZSA-N Gly-Ser-Asn Chemical compound [H]NCC(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(O)=O IALQAMYQJBZNSK-WHFBIAKZSA-N 0.000 description 1
- LCRDMSSAKLTKBU-ZDLURKLDSA-N Gly-Ser-Thr Chemical compound C[C@@H](O)[C@@H](C(O)=O)NC(=O)[C@H](CO)NC(=O)CN LCRDMSSAKLTKBU-ZDLURKLDSA-N 0.000 description 1
- 101000658545 Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd) Type I restriction enyme HindI endonuclease subunit Proteins 0.000 description 1
- VTZYMXGGXOFBMX-DJFWLOJKSA-N His-Ile-Asp Chemical compound [H]N[C@@H](CC1=CNC=N1)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CC(O)=O)C(O)=O VTZYMXGGXOFBMX-DJFWLOJKSA-N 0.000 description 1
- PJLLMGWWINYQPB-PEFMBERDSA-N Ile-Asn-Gln Chemical compound CC[C@H](C)[C@@H](C(=O)N[C@@H](CC(=O)N)C(=O)N[C@@H](CCC(=O)N)C(=O)O)N PJLLMGWWINYQPB-PEFMBERDSA-N 0.000 description 1
- PHIXPNQDGGILMP-YVNDNENWSA-N Ile-Glu-Glu Chemical compound CC[C@H](C)[C@@H](C(=O)N[C@@H](CCC(=O)O)C(=O)N[C@@H](CCC(=O)O)C(=O)O)N PHIXPNQDGGILMP-YVNDNENWSA-N 0.000 description 1
- UAELWXJFLZBKQS-WHOFXGATSA-N Ile-Phe-Gly Chemical compound CC[C@H](C)[C@H](N)C(=O)N[C@@H](Cc1ccccc1)C(=O)NCC(O)=O UAELWXJFLZBKQS-WHOFXGATSA-N 0.000 description 1
- 101710116034 Immunity protein Proteins 0.000 description 1
- 238000012404 In vitro experiment Methods 0.000 description 1
- 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 1
- GPICTNQYKHHHTH-GUBZILKMSA-N Leu-Gln-Ser Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CO)C(O)=O GPICTNQYKHHHTH-GUBZILKMSA-N 0.000 description 1
- FYPWFNKQVVEELI-ULQDDVLXSA-N Leu-Phe-Val Chemical compound CC(C)C[C@H](N)C(=O)N[C@H](C(=O)N[C@@H](C(C)C)C(O)=O)CC1=CC=CC=C1 FYPWFNKQVVEELI-ULQDDVLXSA-N 0.000 description 1
- NFLFJGGKOHYZJF-BJDJZHNGSA-N Lys-Ala-Ile Chemical compound CC[C@H](C)[C@@H](C(O)=O)NC(=O)[C@H](C)NC(=O)[C@@H](N)CCCCN NFLFJGGKOHYZJF-BJDJZHNGSA-N 0.000 description 1
- DEFGUIIUYAUEDU-ZPFDUUQYSA-N Lys-Asn-Ile Chemical compound [H]N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H]([C@@H](C)CC)C(O)=O DEFGUIIUYAUEDU-ZPFDUUQYSA-N 0.000 description 1
- XOQMURBBIXRRCR-SRVKXCTJSA-N Lys-Lys-Ala Chemical compound OC(=O)[C@H](C)NC(=O)[C@H](CCCCN)NC(=O)[C@@H](N)CCCCN XOQMURBBIXRRCR-SRVKXCTJSA-N 0.000 description 1
- WZVSHTFTCYOFPL-GARJFASQSA-N Lys-Ser-Pro Chemical compound C1C[C@@H](N(C1)C(=O)[C@H](CO)NC(=O)[C@H](CCCCN)N)C(=O)O WZVSHTFTCYOFPL-GARJFASQSA-N 0.000 description 1
- CAODKDAPYGUMLK-FXQIFTODSA-N Met-Asn-Ser Chemical compound CSCC[C@H](N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CO)C(O)=O CAODKDAPYGUMLK-FXQIFTODSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 101000658548 Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) Putative type I restriction enzyme MjaIXP endonuclease subunit Proteins 0.000 description 1
- 101000658542 Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) Putative type I restriction enzyme MjaVIIIP endonuclease subunit Proteins 0.000 description 1
- 101000658529 Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) Putative type I restriction enzyme MjaVIIP endonuclease subunit Proteins 0.000 description 1
- SITLTJHOQZFJGG-UHFFFAOYSA-N N-L-alpha-glutamyl-L-valine Natural products CC(C)C(C(O)=O)NC(=O)C(N)CCC(O)=O SITLTJHOQZFJGG-UHFFFAOYSA-N 0.000 description 1
- 108010002311 N-glycylglutamic acid Proteins 0.000 description 1
- 101710107965 Nascent polypeptide-associated complex subunit beta Proteins 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000006002 Pepper Substances 0.000 description 1
- 235000016761 Piper aduncum Nutrition 0.000 description 1
- 235000017804 Piper guineense Nutrition 0.000 description 1
- 244000203593 Piper nigrum Species 0.000 description 1
- 235000008184 Piper nigrum Nutrition 0.000 description 1
- 241000589516 Pseudomonas Species 0.000 description 1
- 241000589626 Pseudomonas syringae pv. tomato Species 0.000 description 1
- 108020004511 Recombinant DNA Proteins 0.000 description 1
- HRNQLKCLPVKZNE-CIUDSAMLSA-N Ser-Ala-Leu Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](C)C(=O)N[C@@H](CC(C)C)C(O)=O HRNQLKCLPVKZNE-CIUDSAMLSA-N 0.000 description 1
- FIDMVVBUOCMMJG-CIUDSAMLSA-N Ser-Asn-Leu Chemical compound CC(C)C[C@@H](C(O)=O)NC(=O)[C@H](CC(N)=O)NC(=O)[C@@H](N)CO FIDMVVBUOCMMJG-CIUDSAMLSA-N 0.000 description 1
- ULVMNZOKDBHKKI-ACZMJKKPSA-N Ser-Gln-Asp Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(O)=O)C(O)=O ULVMNZOKDBHKKI-ACZMJKKPSA-N 0.000 description 1
- 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 1
- HDBOEVPDIDDEPC-CIUDSAMLSA-N Ser-Lys-Asn Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(N)=O)C(O)=O HDBOEVPDIDDEPC-CIUDSAMLSA-N 0.000 description 1
- WLJPJRGQRNCIQS-ZLUOBGJFSA-N Ser-Ser-Asn Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](CO)C(=O)N[C@@H](CC(N)=O)C(O)=O WLJPJRGQRNCIQS-ZLUOBGJFSA-N 0.000 description 1
- PMTWIUBUQRGCSB-FXQIFTODSA-N Ser-Val-Ala Chemical compound [H]N[C@@H](CO)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](C)C(O)=O PMTWIUBUQRGCSB-FXQIFTODSA-N 0.000 description 1
- 101001042773 Staphylococcus aureus (strain COL) Type I restriction enzyme SauCOLORF180P endonuclease subunit Proteins 0.000 description 1
- 101000838760 Staphylococcus aureus (strain MRSA252) Type I restriction enzyme SauMRSORF196P endonuclease subunit Proteins 0.000 description 1
- 101000838761 Staphylococcus aureus (strain MSSA476) Type I restriction enzyme SauMSSORF170P endonuclease subunit Proteins 0.000 description 1
- 101000838758 Staphylococcus aureus (strain MW2) Type I restriction enzyme SauMW2ORF169P endonuclease subunit Proteins 0.000 description 1
- 101001042566 Staphylococcus aureus (strain Mu50 / ATCC 700699) Type I restriction enzyme SauMu50ORF195P endonuclease subunit Proteins 0.000 description 1
- 101000838763 Staphylococcus aureus (strain N315) Type I restriction enzyme SauN315I endonuclease subunit Proteins 0.000 description 1
- 101000838759 Staphylococcus epidermidis (strain ATCC 35984 / RP62A) Type I restriction enzyme SepRPIP endonuclease subunit Proteins 0.000 description 1
- 101000838756 Staphylococcus saprophyticus subsp. saprophyticus (strain ATCC 15305 / DSM 20229 / NCIMB 8711 / NCTC 7292 / S-41) Type I restriction enzyme SsaAORF53P endonuclease subunit Proteins 0.000 description 1
- 241001052560 Thallis Species 0.000 description 1
- QJIODPFLAASXJC-JHYOHUSXSA-N Thr-Thr-Phe Chemical compound C[C@H]([C@@H](C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CC1=CC=CC=C1)C(=O)O)N)O QJIODPFLAASXJC-JHYOHUSXSA-N 0.000 description 1
- GJOBRAHDRIDAPT-NGTWOADLSA-N Thr-Trp-Ile Chemical compound CC[C@H](C)[C@@H](C(=O)O)NC(=O)[C@H](CC1=CNC2=CC=CC=C21)NC(=O)[C@H]([C@@H](C)O)N GJOBRAHDRIDAPT-NGTWOADLSA-N 0.000 description 1
- YTPLVNUZZOBFFC-SCZZXKLOSA-N Val-Gly-Pro Chemical compound CC(C)[C@H](N)C(=O)NCC(=O)N1CCC[C@@H]1C(O)=O YTPLVNUZZOBFFC-SCZZXKLOSA-N 0.000 description 1
- HQYVQDRYODWONX-DCAQKATOSA-N Val-His-Ser Chemical compound CC(C)[C@@H](C(=O)N[C@@H](CC1=CN=CN1)C(=O)N[C@@H](CO)C(=O)O)N HQYVQDRYODWONX-DCAQKATOSA-N 0.000 description 1
- NZYNRRGJJVSSTJ-GUBZILKMSA-N Val-Ser-Val Chemical compound CC(C)[C@H](N)C(=O)N[C@@H](CO)C(=O)N[C@@H](C(C)C)C(O)=O NZYNRRGJJVSSTJ-GUBZILKMSA-N 0.000 description 1
- LCHZBEUVGAVMKS-RHYQMDGZSA-N Val-Thr-Leu Chemical compound CC(C)C[C@H](NC(=O)[C@@H](NC(=O)[C@@H](N)C(C)C)[C@@H](C)O)C(O)=O LCHZBEUVGAVMKS-RHYQMDGZSA-N 0.000 description 1
- 108010024078 alanyl-glycyl-serine Proteins 0.000 description 1
- 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 1
- 230000000840 anti-viral effect Effects 0.000 description 1
- 108010047857 aspartylglycine Proteins 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002299 complementary DNA Substances 0.000 description 1
- 210000000805 cytoplasm Anatomy 0.000 description 1
- 230000004665 defense response Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 210000002472 endoplasmic reticulum Anatomy 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001976 enzyme digestion Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 244000000004 fungal plant pathogen Species 0.000 description 1
- 108010063718 gamma-glutamylaspartic acid Proteins 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 108010078144 glutaminyl-glycine Proteins 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 108010001064 glycyl-glycyl-glycyl-glycine Proteins 0.000 description 1
- 108010050848 glycylleucine Proteins 0.000 description 1
- 230000007773 growth pattern Effects 0.000 description 1
- 230000036046 immunoreaction Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000000411 inducer Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 108010030617 leucyl-phenylalanyl-valine Proteins 0.000 description 1
- 239000012139 lysis buffer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 108020004999 messenger RNA Proteins 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 210000003470 mitochondria Anatomy 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 108010070409 phenylalanyl-glycyl-glycine Proteins 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 108010070643 prolylglutamic acid Proteins 0.000 description 1
- 239000012460 protein solution Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000008117 seed development Effects 0.000 description 1
- 230000035040 seed growth Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 108010051110 tyrosyl-lysine Proteins 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/195—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from bacteria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
- A01N63/50—Isolated enzymes; Isolated proteins
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/37—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from fungi
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/70—Vectors or expression systems specially adapted for E. coli
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K2319/00—Fusion polypeptide
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Genetics & Genomics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Biophysics (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Wood Science & Technology (AREA)
- Gastroenterology & Hepatology (AREA)
- Plant Pathology (AREA)
- Microbiology (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Virology (AREA)
- Dentistry (AREA)
- Environmental Sciences (AREA)
- Mycology (AREA)
- Peptides Or Proteins (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
本发明属于生物技术领域,具体涉及融合蛋白AB‑NAC及其生产方法和应用。所述AB‑NAC蛋白,是水稻黄单胞细菌的HarpinXooN端的59个氨基酸(AB片段)和来源于互隔交链孢霉(Alternaria sp.)的新生多肽相关复合体α亚基(nascent polypeptide‑associated complex,alpha subunit)NAC的融合体。同时具有AB和NAC两种蛋白的功能,具有二价植物免疫蛋白的特性,其能激发烟叶产生超敏反应(HR)的枯斑面积明显高于AB或NAC,产生了1+1>2的效果。能快速激发植物的免疫反应,提高植物抗病能力,植物的生长速率提高50%以上。
Description
技术领域
本发明属于生物技术领域,涉及一种二价植物免疫融合蛋白,具体涉及二价融合蛋白AB-NAC,及其基因工程菌的构建、制备方法及在提高植物的免疫力和抗逆性、促进植物的发芽和生长中的应用。
技术背景:
植物先天就拥有和动物相似的免疫系统,可在病原物的诱发下,对病原侵染产生快速的防卫反应。植物免疫系统主要由两个免疫反应构成:病原有关分子模式引发的免疫反应(PTI)和效应蛋白引发的免疫反应(ETI)。其中,PTI反应主要是由病原微生物表面的病原有关分子模式(如多糖、鞭毛蛋白等)刺激诱导,可致使植物发生非特异性的防卫反应(基础防卫反应);ETI反应则由植物的抗病蛋白(R蛋白)识别病原微生物产生的效应蛋白引发,可导致植物产生特异性的防卫反应。
植物免疫蛋白,又称植物免疫诱抗剂、植物疫苗,是当前国际上生物农药方面十分热点的研究方向。利用了当植物被外界刺激或者处于逆境情况时,能经由调节本身的防卫和代谢系统发生免疫抗性,从而抑制或者减轻病害的再一次发生和蔓延的原理,成为了能够取代化学农药和肥料的生物农药、植物疫苗。植物免疫蛋白不但能提高植物的抗病性,还能增进植物根、茎、叶生长和叶绿素合成速率,最终起到作物增产的作用,还可以通过诱发农作物产生能抵御、防控农作物病虫害的物质,从而起到防治病虫害的作用。
HpalXoo(hrfA,HR function)基因是从水稻黄单胞细菌白叶枯致病变种中克隆到的,全长420bp,编码的HarpinXoo蛋白分为三个功能域:domain for enhancing plantgrowth,DEG、domain for inducing insect resistance,DIR和domain for inducingpathogen resistance,DPR三个功能域,它们分别含有59、33和49个氨基酸。孟凡宏等人对AB片段,即所谓的DEG功能域进行了表达及活性研究。AB片段位于HarpinXoo的N端,全长59个氨基酸,研究发现,AB具备同全长HarpinXoo差不多的抗病活性,且相较于全长HarpinXoo而言,AB片段更容易在体外高效表达。
互隔交链孢霉(Alternaria sp.)是一类重要的植物病原真菌,能引起多种植物病害。从该菌中分离得到的新生多肽相关复合体(nascent polypeptide-associatedcomplex,NAC)由α-NAC和β-NAC共2个亚基组成,体内和体外实验证实,NAC(尤其是α-NAC)可以形成一个稳定的异源复合体,其能够在蛋白质翻译过程中阻止新生多肽在合成之后与错误的蛋白分子结合。NAC具有蛋白翻译和基因转录的双重功能,同时也是新生多肽从细胞质中进入内质网和线粒体的一个桥梁。近年来,NAC在植物促生长、诱导免疫等方面的研究也取得了快速发展。如,可以增加烟草细胞中叶绿素的含量、促进植物的生长;对植物的花器官的形成和种子发育也具有明显的促进作用;能够增强植物在高盐、干旱等胁迫环境下的生存能力;促进植物体内苯丙氨酸解氨酶(PAL)、过氧化物酶(POD)、多酚氧化酶(PPO)等的生成,显著激发植物的免疫反应等。
无论是hrfA基因表达的AB植物免疫蛋白,还是NAC基因表达的NAC蛋白以及NAC的衍生物,对植物的免疫激发受体、免疫激发传导路径和植物促生长等方面都有各自的局限性。开发更全面、性能更强的免疫蛋白,且兼有促生长功能的融合蛋白势在必行。
发明内容:
为了解决上述技术问题,本发明首先提供一种二价植物免疫融合蛋白,所述二价植物免疫融合蛋白命名为AB-NAC蛋白,是水稻黄单胞细菌的HarpinXooN端的59个氨基酸(AB片段)和来源于互隔交链孢霉(Alternaria sp.)的新生多肽相关复合体α亚基(nascentpolypeptide-associated complex,alpha subunit)NAC的融合体。
所述AB-NAC蛋白具体为:
(1)序列表SEQ ID NO.1所示的氨基酸序列;或
(2)SEQ ID NO.1同源性75%以上的氨基酸序列;或
(3)在SEQ ID NO.1的基础上进行一个或多个氨基酸替换,和/或缺失,和/或添加后获得的具有SEQ ID NO.1相同功能的氨基酸序列;
本发明还保护编码所述AB-NAC蛋白的核酸分子,所述核酸分子可以是DNA,如cDNA、基因组DNA或重组DNA;所述核酸分子也可以是RNA,如mRNA或hnRNA;
进一步地,所述AB-NAC蛋白的编码基因如序列表SEQ ID NO.2所示;
本发明的另一目的是提供含有上述AB-NAC蛋白编码基因的表达盒、重组载体或重组菌;
进一步地,所述重组载体的表达载体可以是pET28a质粒、pET30a质粒或pBV222质粒等;
优选地,所述重组载体的表达载体为含有T7强启动子的pET28a(+)质粒;
进一步地,所述重组菌的宿主可以是大肠杆菌DH5α、BL21或C802等;
优选地,所述重组菌的宿主为E.coli BL21(DE3);
本发明还提供上述重组菌的构建方法,是将经过密码子优化过的AB片段和NAC的编码基因进行融合后获得AB-NAC基因,与表达载体进行酶切连接后转化入宿主细胞所得;
所述AB片段编码基因的核苷酸序列如SEQ ID NO.3所示;
所述NAC编码基因的核苷酸序列如SEQ ID NO.4所示;
进一步地,AB片段和NAC编码基因的融合是通过(G4S)3链接肽进行融合连接;融合后获得的序列如SEQ ID NO.2所示;
进一步地,所述重组菌以含有T7强启动子的pET28a(+)质粒为载体,以E.coliBL21(DE3)为宿主,获得基因工程菌E.coli/AB-NAC;
本发明还提供融合蛋白AB-NAC的生产方法,具体如下:
将构建成功的E.coli/AB-NAC基因工程菌接种至发酵培养基中,待OD600达到0.6-1.8,添加IPTG诱导表达,离心收获菌体,破碎,取破碎液上清液,经Ni-NTA亲和层析纯化后,可得纯度超过90%的AB-NAC蛋白产品;
进一步地,培养条件为:以1-10%的接种量接种发酵培养基,待OD600达到0.6-1.8,添加IPTG至终浓度0.1-0.6mM,15-20℃,200rpm低温诱导16-20h;AB-NAC蛋白的得率可以达到0.1-1.5g/L发酵液;
进一步地,所述发酵培养基为含50μg/mL卡那霉素的LB培养基;
进一步地,IPTG的添加量为终浓度0.3mM。
本发明还提供所述AB-NAC蛋白在促进植物生长中的应用;
优选地,所述AB-NAC蛋白在促进植物生长中的应用方法如下:
将AB-NAC蛋白配比成终浓度为0.125-50μg/mL的溶液,单独或与化学农药混合、与其他农药/微生物菌肥/土壤调理剂/植物刺激剂/植物提取物等混合后,进行叶面喷施或灌根,可以有效激发植物的免疫反应;
优选地,AB-NAC蛋白浓度为0.25μg/mL;
优选地,施用方法为叶面喷施;
本发明还提供所述AB-NAC蛋白在制备植物促生长剂中的应用;
本发明还提供所述AB-NAC蛋白的编码基因,或含有所述编码基因的表达盒、重组载体或重组菌在促进植物生长中的应用;
本发明还提供所述AB-NAC蛋白的编码基因,或含有所述编码基因的表达盒、重组载体或重组菌在制备植物促生长剂中的应用;
进一步地,所述植物可以为小麦、水稻、烟草、辣椒、番茄等;
上述应用可快速激发植物的免疫反应,提高植物抗病能力,促进植物生长,增加果实产量。
有益效果:本发明提供的二价融合蛋白AB-NAC,同时具有AB和NAC两种蛋白的功能,具有二价植物免疫蛋白的特性,其能激发烟叶产生超敏反应(HR)的枯斑面积明显高于AB或NAC,产生了1+1>2的效果。能快速激发植物的免疫反应,提高植物抗病能力,植物的生长速率提高50%以上。
附图说明:
图1:AB-NAC基因PCR验证图;
图2:AB-NAC SDS-PAGE电泳验证图;
其中,1,蛋白marker;2,全菌破碎液;3,破碎液上清;4,破碎液沉淀。
图3:AB-NAC镍柱纯化后的SDS-PAGE电泳验证图
其中,1,蛋白marker;2,破碎液上清;3,穿透液;4-5,50mM咪唑洗脱液;6,300mM咪唑洗脱液。
图4:AB-NAC对烟草叶片的HR反应图;
其中,1:去离子水;2:PBS缓冲液;3:空载大肠杆菌提取物;4:0.5μg/mL AB蛋白形成的烟叶枯斑;5:0.5μg/mLNAC蛋白形成的烟叶枯斑;6:0.5μg/mL AB-NAC蛋白形成的烟叶枯斑。
图5:AB-NAC促进小麦生长图。
具体实施方案:
为了使本专利的目的、技术方案及优点更加清楚明白,以下结合具体实施例,对本专利进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本专利,并不用于限定本发明。
下述实施例的实验方法如无特别说明,均为常规方法;下述实施例中所使用的实验材料及试剂,如无特别说明,均可通过商业途径购买获得。
本发明提供的AB-NAC蛋白可根据氨基酸序列进行人工合成,也可通过对编码基因进行生物表达获得。
以下将结合附图及具体实施例对本发明做进一步地解释说明。
实施例1:E.coli/AB-NAC基因工程菌构建
本发明提供的AB-NAC蛋白可根据氨基酸序列进行人工合成,也可通过对编码基因进行生物表达获得,本实施例将以生物表达的形式为例进行解释说明。
按照SEQ ID NO.2所示的核苷酸序列,采用全基因合成的方法,将AB-NAC基因全合成,并插入到含有T7强启动子的pET28a质粒的Nco I和Xho I酶切位点中间,构建成pET-28a-AB-NAC重组质粒。
将上述pET-28a-AB-NAC重组质粒转入到大肠杆菌BL21(DE3),构建成E.coli/AB-NAC基因工程菌。经PCR验证和基因测序确定,阳性克隆即为构建成功的E.coli/AB-NAC基因工程菌,PCR验证结果如图1所示,将E.coli/AB-NAC基因工程菌进行培养后收集菌体,破碎后分别将全菌、上清液、沉淀进行SDS-PAGE蛋白电泳,验证如图2所示。
实施例2:AB-NAC二价融合蛋白的诱导表达
将重组菌株E.coli/AB-NAC接种至含50μg/mL卡那霉素的LB培养基中,37℃、200rpm过夜培养12h制备成种子液;
按5%的接种量将种子液接种到含50μg/mL卡那霉素的LB培养基中,37℃继续培养,待OD600达到1.0,添加IPTG至终浓度0.3mM,18℃,200rpm低温诱导18h;AB-NAC蛋白的得率可以达到1.5g/L发酵液;
诱导结束后,8000rpm离心5min,收集菌体,破碎,8000rpm离心5min,取上清,将上清液滤膜过滤,进样Ni-NTA亲和层析柱,管中蛋白样减少一个柱体积后即取穿透样,用4个柱体积的0.05mol/L Tris-HCl裂解缓冲液洗涤镍柱,然后用50mM或300mM的咪唑洗脱,收集洗脱液。结果显示,300mM的咪唑可以将AB-NAC蛋白完全洗脱下来,蛋白纯度90%以上(如图3所示,泳道6能够看到清晰的条带,分子量31.9kD)。
实施例3:AB-NAC对烟草叶片HR反应的检测
将AB-NAC融合蛋白产品稀释配置成0.5μg/mL的蛋白样品进行烟草叶片注射(每孔的注射剂量为100μL),并将同等浓度的水、AB和NAC蛋白溶液作为对照。将注射后的烟草放置在植物培养箱中,30℃培养3天,观察叶片中的枯斑大小。
结果显示,AB-NAC能强烈引起烟草叶片的HR反应,与同等浓度的AB和NAC相比,烟叶枯斑面积大1倍以上(如图4所示)。
实施例4:AB-NAC促进小麦生长实验
选取健康饱满的小麦种子,随机分组,每组20粒种子。将AB-NAC融合蛋白产品配置成4、2、1、0.5、0.25、0.125和0.0625μg/mL浓度梯度的蛋白样品,分别浸泡小麦种子10-12h。并分别配制同等浓度的AB和NAC蛋白样品作为对照,同时选取水做空白对照,观察小麦2天(48h)后的生长情况。
结果显示,AB-NAC能显著促进小麦种子的生长,比水空白对照提高1倍左右,比单独使用的同等浓度的AB和NAC提高约50%(如图5和表1所示)。
表1:不同浓度梯度下小麦生长情况(48h)
注:水(对照),小麦平均高度/cm,2.9。
实施例5:抑菌性实验
分别在番茄叶片的表面喷洒(2μL/cm2)40μg/mL的AB、NAC、AB-NAC蛋白溶液,24小时后,在番茄叶片的表面均匀喷洒等量的丁香假单胞菌番茄致病变种(DC3000 bio-103914Pseudomonas sringaepv.tomato),4天后检测叶片内部微生物数量的变化。
各摘取20g番茄叶片,用无菌水清洗,沥干后加入50mL无菌水,用组织研磨仪将叶片彻底破碎。将破碎液稀释至一定倍数,在营养肉汤固体培养基(NB)培养皿上均匀涂板,24小时后检测单菌落数量。
表2番茄叶片中丁香假单胞菌数量检测结果
样品名称 | PBS | AB | NAC | AB-NAC |
单菌落数(×10<sup>6</sup>) | 4.4±0.2 | 4.1±0.2 | 4.0±0.2 | 3.6±0.2 |
由上表可以很明显的发现,由于AB-NAC激发的植物免疫反应强于AB或NAC激发的植物免疫反应,因此,致病菌丁香假单胞菌的侵染和繁殖速度明显减少。
AB和NAC都具有一定的番茄免疫激发活性,但融合蛋白AB-NAC相对于AB和NAC拥有更强的激发活性,因此,施用AB-NAC可以有效的抑制致病菌丁香假单胞菌的生长和繁殖,使番茄避免番茄假单胞果腐病等疾病的侵袭。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本专利构思的前提下,上述各实施方式还可以做出若干变形、组合和改进,这些都属于本专利的保护范围。因此,本专利的保护范围应以权利要求为准。
SEQUENCE LISTING
<110> 上海乙水茉生物科技有限公司
<120> 二价植物免疫蛋白AB-NAC及其应用
<130> 1
<160> 4
<170> PatentIn version 3.5
<210> 1
<211> 181
<212> PRT
<213> 人工序列
<400> 1
Met Asn Ser Leu Asn Thr Gln Phe Gly Gly Ser Thr Ser Asn Leu Gln
1 5 10 15
Val Gly Pro Ser Gln Asp Thr Thr Phe Gly Ser Asn Gln Gly Gly Asn
20 25 30
Gln Gly Ile Ser Glu Lys Gln Leu Asp Gln Leu Leu Cys Gln Leu Ile
35 40 45
Ser Ala Leu Leu Gln Ser Ser Lys Asn Ala Glu Gly Gly Gly Gly Ser
50 55 60
Gly Gly Gly Gly Ser Gly Gly Gly Gly Ser Ala Asn Pro Arg Ile Glu
65 70 75 80
Glu Leu Pro Asp Glu Pro Glu Lys Lys Asn Val Gln Ile Glu Glu Asp
85 90 95
Glu Ser Ser Asp Glu Ser Glu Gly Glu Glu Gly Glu Val Ser Val Pro
100 105 110
Ala Gly Ser Ser Val Ala Val His Ser Arg Asn Glu Lys Lys Ala Arg
115 120 125
Lys Ala Ile Ala Lys Leu Gly Leu Lys His Ile Asp Gly Ile Thr Arg
130 135 140
Val Thr Leu Arg Arg Pro Lys Asn Ile Leu Phe Val Ile Asn Gln Pro
145 150 155 160
Asp Val Tyr Lys Ser Pro Ser Ser Asn Thr Trp Ile Ile Phe Gly Glu
165 170 175
Ala Lys Ile Glu Asp
180
<210> 2
<211> 554
<212> DNA
<213> 人工序列
<400> 2
ccatgggcaa ctctctgaac acccagttcg gtggttctac ctctaacctg caggttggtc 60
cgtctcagga caccaccttc ggttctaacc agggtggtaa ccagggtatc tctgaaaaac 120
agctggacca gctgctgtgc cagctgataa gtgctctgct gcagtcttct aaaaacgctg 180
aaggtggagg cggttcaggc ggaggtggct ctggcggtgg cggatcggct aacccgcgta 240
tcgaagaact gccggacgaa ccggaaaaaa aaaacgttca gatagaagaa gacgaatctt 300
ctgacgaatc tgaaggtgaa gaaggtgaag tttctgttcc ggctggttct tctgttgctg 360
ttcactctcg taacgaaaaa aaagctcgta aagctatcgc taaactgggt ctgaaacaca 420
tcgacggtat cacccgtgtt accctgcgtc gtccgaaaaa catcctgttc gttatcaacc 480
agccagacgt gtacaaaagc ccgtcttcta acacctggat aatcttcggt gaagctaaaa 540
tcgaagacct cgag 554
<210> 3
<211> 180
<212> DNA
<213> 水稻黄单胞细菌
<400> 3
atgaactctc tgaacaccca gttcggtggt tctacctcta acctgcaggt tggtccgtct 60
caggacacca ccttcggttc taaccagggt ggtaaccagg gtatctctga aaaacagctg 120
gaccagctgc tgtgccagct gataagtgct ctgctgcagt cttctaaaaa cgctgaataa 180
<210> 4
<211> 327
<212> DNA
<213> 互隔交链孢霉(Alternaria sp.)
<400> 4
atggctaacc cgcgtatcga agaactgccg gacgaaccgg aaaaaaaaaa cgttcagata 60
gaagaagacg aatcttctga cgaatctgaa ggtgaagaag gtgaagtttc tgttccggct 120
ggttcttctg ttgctgttca ctctcgtaac gaaaaaaaag ctcgtaaagc tatcgctaaa 180
ctgggtctga aacacatcga cggtatcacc cgtgttaccc tgcgtcgtcc gaaaaacatc 240
ctgttcgtta tcaaccagcc agacgtgtac aaaagcccgt cttctaacac ctggataatc 300
ttcggtgaag ctaaaatcga agactaa 327
Claims (10)
1.一种植物免疫融合蛋白,其特征在于,所述植物免疫融合蛋白具体为AB-NAC蛋白,是水稻黄单胞细菌的HarpinXooN端的59个氨基酸(AB片段)和来源于互隔交链孢霉(Alternaria sp.)的新生多肽相关复合体α亚基(nascent polypeptide-associatedcomplex,alpha subunit)NAC的融合体。
2.如权利要求1所述的一种植物免疫融合蛋白,其特征在于,所述AB-NAC蛋白具体为:
(1)序列表SEQ ID NO.1所示的氨基酸序列;或
(2)SEQ ID NO.1同源性75%以上的氨基酸序列;或
(3)在SEQ ID NO.1的基础上进行一个或多个氨基酸替换,和/或缺失,和/或添加后获得的具有SEQ ID NO.1相同功能的氨基酸序列。
3.编码权利要求1或2所述植物免疫融合蛋白的核酸分子。
4.如权利要求3所述的核酸分子,其特征在于,核苷酸序列如序列表SEQ ID NO.2所示。
5.含有权利要求3或4核酸分子的表达盒、重组载体或重组菌。
6.如权利要求5所述的表达盒、重组载体或重组菌,采用的表达载体为pET28a质粒、pET30a质粒或pBV222质粒;采用的宿主菌为大肠杆菌DH5α、BL21或C802。
7.一种制备权利要求1-3项任意所述免疫融合蛋白的方法,其特征在于,采用权利要求5或6所述的重组菌以1-10%的接种量接种发酵培养基,待OD600达到0.6-1.8,添加IPTG至终浓度0.1-0.6mM,15-20℃,200rpm低温诱导16-20h。
8.权利要求1-3项任意所述免疫融合蛋白在促进植物生长或在制备植物促生长剂中的应用。
9.如权利要求8所述的应用,具体方法如下:将AB-NAC蛋白配比成终浓度为0.125-50μg/mL的溶液,单独或与化学农药混合、与其他农药/微生物菌肥/土壤调理剂/植物刺激剂/植物提取物等混合后,进行叶面喷施或灌根。
10.权利要求5所述的表达盒、重组载体或重组菌在促进植物生长或在制备植物促生长剂中的应用。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011201856.7A CN114437231A (zh) | 2020-11-02 | 2020-11-02 | 二价植物免疫蛋白ab-nac及其应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202011201856.7A CN114437231A (zh) | 2020-11-02 | 2020-11-02 | 二价植物免疫蛋白ab-nac及其应用 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN114437231A true CN114437231A (zh) | 2022-05-06 |
Family
ID=81358375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202011201856.7A Pending CN114437231A (zh) | 2020-11-02 | 2020-11-02 | 二价植物免疫蛋白ab-nac及其应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114437231A (zh) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101153057A (zh) * | 2006-09-27 | 2008-04-02 | 中国农业科学院植物保护研究所 | 一种提高植物抗性促进植物生长的蛋白质及其编码基因 |
CN101429510A (zh) * | 2007-02-14 | 2009-05-13 | 南京农业大学 | 小麦hpfw基因、表达产物及其应用 |
CN102028000A (zh) * | 2010-11-01 | 2011-04-27 | 北京丰原康泰生物科技有限公司 | Nac蛋白作为植物免疫蛋白的应用 |
CN108522508A (zh) * | 2018-04-18 | 2018-09-14 | 中国农业科学院植物保护研究所 | 蛋白质激发子PeaT1在诱导农作物抗蚜中的应用 |
CN113087804A (zh) * | 2019-12-23 | 2021-07-09 | 苏州乙水茉生物科技有限公司 | 一种二价植物免疫融合蛋白及其生产方法和应用 |
CN113621074A (zh) * | 2021-08-06 | 2021-11-09 | 苏州乙水茉生物科技有限公司 | 一种多价植物免疫融合蛋白及其生产方法和应用 |
CN114163549A (zh) * | 2022-01-06 | 2022-03-11 | 苏州乙水茉生物科技有限公司 | 壳寡糖与二价植物疫苗共价偶联体及其制备方法和应用 |
-
2020
- 2020-11-02 CN CN202011201856.7A patent/CN114437231A/zh active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101153057A (zh) * | 2006-09-27 | 2008-04-02 | 中国农业科学院植物保护研究所 | 一种提高植物抗性促进植物生长的蛋白质及其编码基因 |
CN101429510A (zh) * | 2007-02-14 | 2009-05-13 | 南京农业大学 | 小麦hpfw基因、表达产物及其应用 |
CN102028000A (zh) * | 2010-11-01 | 2011-04-27 | 北京丰原康泰生物科技有限公司 | Nac蛋白作为植物免疫蛋白的应用 |
CN108522508A (zh) * | 2018-04-18 | 2018-09-14 | 中国农业科学院植物保护研究所 | 蛋白质激发子PeaT1在诱导农作物抗蚜中的应用 |
CN113087804A (zh) * | 2019-12-23 | 2021-07-09 | 苏州乙水茉生物科技有限公司 | 一种二价植物免疫融合蛋白及其生产方法和应用 |
CN113621074A (zh) * | 2021-08-06 | 2021-11-09 | 苏州乙水茉生物科技有限公司 | 一种多价植物免疫融合蛋白及其生产方法和应用 |
US20230053680A1 (en) * | 2021-08-06 | 2023-02-23 | Suzhou Yishuimo Biological Technology Co., LTD | Multivalent Plant Immune Fusion Protein, Production Method Thereof and Its Use |
CN114163549A (zh) * | 2022-01-06 | 2022-03-11 | 苏州乙水茉生物科技有限公司 | 壳寡糖与二价植物疫苗共价偶联体及其制备方法和应用 |
Non-Patent Citations (5)
Title |
---|
CAI, ZY. ET AL: "Efficient expression and purification of soluble HarpinEa protein by translation initiation region codon optimization", 《PROTEIN EXPRESSION AND PURIFICATION》, vol. 188 * |
NCBI: "NCBI Reference Sequence: XP_018390753.1,nascent polypeptide-associated complex, alpha subunit [Alternaria alternata]", 《NCBI》 * |
PENG, J L ET AL: "HarpinXoo and its functional domains activate pathogen-inducible plant promoters in Arabidopsis", 《ACTA BOTANICA SINICA》, vol. 46, no. 9 * |
刘延锋: "极细链格孢菌激活蛋白PeaT1在毕赤酵母中的表达及其互作蛋白的研究", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
牟少亮等: "含有多个应答逆境元件的合成启动子在水稻中的表达分析", 《植物病理学报》, vol. 43, no. 6 * |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113087804B (zh) | 一种二价植物免疫融合蛋白及其生产方法和应用 | |
CN106834336A (zh) | 一种哈茨木霉酸性蛋白酶p6281的异源表达及纯化方法 | |
CN113621074B (zh) | 一种多价植物免疫融合蛋白及其生产方法和应用 | |
CN110922457A (zh) | 禾谷镰刀菌分泌的植物免疫诱抗蛋白FgPII1及其应用 | |
CN107226850B (zh) | 一种抑制α糖苷酶活性的多肽及其应用 | |
CN114437231A (zh) | 二价植物免疫蛋白ab-nac及其应用 | |
KR100346928B1 (ko) | 항균단백질 | |
CN109305996A (zh) | 禾谷镰刀菌分泌型蛋白激发子FgHrip1及其应用 | |
CN110468143A (zh) | 抗菌肽nzx的制备方法及应用 | |
CN113354741A (zh) | SUMO-HarpinEa蛋白及其生产方法和应用 | |
CN110452290A (zh) | 来源于帚枝霉属真菌的激发子蛋白及其编码基因在蔬菜生防上的应用 | |
CN113248584B (zh) | Ralf蛋白质在促进植物对磷元素吸收中的应用 | |
CN113105532B (zh) | 稻曲菌激发子蛋白sgp1、短肽及其应用 | |
CN108059671B (zh) | 一种紫花苜蓿胰蛋白酶抑制剂MT-mth2-36p5及其编码基因与应用 | |
CN112940135A (zh) | 融合蛋白、其氨基酸序列、编码核苷酸序列、制备方法和应用 | |
CN111138518B (zh) | 细菌转位子组分蛋白及其截短体的表达和应用 | |
CN113817695B (zh) | 一种胺氧化酶ndao、制备方法和应用 | |
CN111713511B (zh) | 来源于帚枝霉属真菌的激发子蛋白在防治木薯细菌性萎蔫病中的应用 | |
CN113214409B (zh) | 一种蜂毒素-死亡素杂合肽突变体mtm及其应用 | |
CN113817696B (zh) | 一种胺氧化酶asao、制备方法和应用 | |
CN108314728B (zh) | 一种紫花苜蓿胰蛋白酶抑制剂MT-mth2-89i19及其编码基因与应用 | |
CN110583682B (zh) | 基于Tma12蛋白的室内控蚜喷剂、构建方法及该蛋白的应用 | |
CN109180790B (zh) | 侧孢短芽孢杆菌A60蛋白激发子PeBL2及其编码基因和应用 | |
CN107964547B (zh) | 一种三七病程相关蛋白10基因PnPR10-3及应用 | |
CN117964781A (zh) | 一种叶面定向递送结合促渗透超敏蛋白及其应用 |
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 |