CN110863009B - 一种牛kcnj12基因真核过表达载体的构建与应用 - Google Patents
一种牛kcnj12基因真核过表达载体的构建与应用 Download PDFInfo
- Publication number
- CN110863009B CN110863009B CN201911167804.XA CN201911167804A CN110863009B CN 110863009 B CN110863009 B CN 110863009B CN 201911167804 A CN201911167804 A CN 201911167804A CN 110863009 B CN110863009 B CN 110863009B
- Authority
- CN
- China
- Prior art keywords
- kcnj12
- gene
- vector
- bovine
- cattle
- 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.)
- Expired - Fee Related
Links
- 239000013598 vector Substances 0.000 title claims abstract description 55
- 230000002018 overexpression Effects 0.000 title claims abstract description 31
- 101100453548 Bos taurus KCNJ12 gene Proteins 0.000 title claims abstract description 22
- 238000010276 construction Methods 0.000 title abstract description 10
- 241000283690 Bos taurus Species 0.000 claims abstract description 55
- 101150037139 KCNJ12 gene Proteins 0.000 claims abstract description 49
- 108091026890 Coding region Proteins 0.000 claims abstract description 12
- 238000010367 cloning Methods 0.000 claims abstract description 6
- 239000013604 expression vector Substances 0.000 claims abstract description 4
- 230000037257 muscle growth Effects 0.000 claims abstract description 3
- 239000013612 plasmid Substances 0.000 claims description 41
- 210000000663 muscle cell Anatomy 0.000 claims description 29
- 230000014509 gene expression Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 238000001976 enzyme digestion Methods 0.000 claims description 11
- 102000012410 DNA Ligases Human genes 0.000 claims description 6
- 108010061982 DNA Ligases Proteins 0.000 claims description 6
- 230000035755 proliferation Effects 0.000 claims description 6
- 238000012408 PCR amplification Methods 0.000 claims description 5
- 238000003259 recombinant expression Methods 0.000 claims description 4
- 210000001082 somatic cell Anatomy 0.000 claims description 3
- 238000000338 in vitro Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000009025 developmental regulation Effects 0.000 claims 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 230000026267 regulation of growth Effects 0.000 claims 1
- 238000011161 development Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 210000004027 cell Anatomy 0.000 description 33
- 108090000623 proteins and genes Proteins 0.000 description 31
- 238000006243 chemical reaction Methods 0.000 description 14
- 210000003205 muscle Anatomy 0.000 description 10
- 239000000047 product Substances 0.000 description 10
- 239000012634 fragment Substances 0.000 description 9
- 239000003550 marker Substances 0.000 description 9
- 108020004999 messenger RNA Proteins 0.000 description 9
- 239000000243 solution Substances 0.000 description 7
- 238000001890 transfection Methods 0.000 description 7
- 108020004414 DNA Proteins 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 102000004169 proteins and genes Human genes 0.000 description 6
- 108091008146 restriction endonucleases Proteins 0.000 description 6
- 238000012216 screening Methods 0.000 description 6
- 108091006146 Channels Proteins 0.000 description 5
- 102000017791 KCNJ12 Human genes 0.000 description 5
- 230000004663 cell proliferation Effects 0.000 description 5
- 230000029087 digestion Effects 0.000 description 5
- 230000012010 growth Effects 0.000 description 5
- 238000010186 staining Methods 0.000 description 5
- 102000004190 Enzymes Human genes 0.000 description 4
- 108090000790 Enzymes Proteins 0.000 description 4
- 238000001962 electrophoresis Methods 0.000 description 4
- 229940088598 enzyme Drugs 0.000 description 4
- 239000000499 gel Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 108050006400 Cyclin Proteins 0.000 description 3
- 230000004544 DNA amplification Effects 0.000 description 3
- 239000006144 Dulbecco’s modified Eagle's medium Substances 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 101150094019 MYOG gene Proteins 0.000 description 3
- 102000009339 Proliferating Cell Nuclear Antigen Human genes 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 101001023030 Toxoplasma gondii Myosin-D Proteins 0.000 description 3
- 238000000246 agarose gel electrophoresis Methods 0.000 description 3
- 235000015278 beef Nutrition 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000024245 cell differentiation Effects 0.000 description 3
- 239000002299 complementary DNA Substances 0.000 description 3
- 230000004069 differentiation Effects 0.000 description 3
- 230000001605 fetal effect Effects 0.000 description 3
- 239000001963 growth medium Substances 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012163 sequencing technique Methods 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 108091032973 (ribonucleotides)n+m Proteins 0.000 description 2
- 102100021178 ATP-sensitive inward rectifier potassium channel 12 Human genes 0.000 description 2
- 229920001817 Agar Polymers 0.000 description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 102000015792 Cyclin-Dependent Kinase 2 Human genes 0.000 description 2
- 108010024986 Cyclin-Dependent Kinase 2 Proteins 0.000 description 2
- 108010014303 DNA-directed DNA polymerase Proteins 0.000 description 2
- 102000016928 DNA-directed DNA polymerase Human genes 0.000 description 2
- 241000588724 Escherichia coli Species 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- 101000614708 Homo sapiens ATP-sensitive inward rectifier potassium channel 12 Proteins 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 102000004257 Potassium Channel Human genes 0.000 description 2
- 238000011529 RT qPCR Methods 0.000 description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 210000001789 adipocyte Anatomy 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- AVKUERGKIZMTKX-NJBDSQKTSA-N ampicillin Chemical compound C1([C@@H](N)C(=O)N[C@H]2[C@H]3SC([C@@H](N3C2=O)C(O)=O)(C)C)=CC=CC=C1 AVKUERGKIZMTKX-NJBDSQKTSA-N 0.000 description 2
- 229960000723 ampicillin Drugs 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 229940041514 candida albicans extract Drugs 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 2
- 238000001516 cell proliferation assay Methods 0.000 description 2
- YRQNKMKHABXEJZ-UVQQGXFZSA-N chembl176323 Chemical compound C1C[C@]2(C)[C@@]3(C)CC(N=C4C[C@]5(C)CCC6[C@]7(C)CC[C@@H]([C@]7(CC[C@]6(C)[C@@]5(C)CC4=N4)C)CCCCCCCC)=C4C[C@]3(C)CCC2[C@]2(C)CC[C@H](CCCCCCCC)[C@]21C YRQNKMKHABXEJZ-UVQQGXFZSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000012258 culturing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- ZMMJGEGLRURXTF-UHFFFAOYSA-N ethidium bromide Chemical compound [Br-].C12=CC(N)=CC=C2C2=CC=C(N)C=C2[N+](CC)=C1C1=CC=CC=C1 ZMMJGEGLRURXTF-UHFFFAOYSA-N 0.000 description 2
- 229960005542 ethidium bromide Drugs 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012091 fetal bovine serum Substances 0.000 description 2
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 description 2
- 210000003098 myoblast Anatomy 0.000 description 2
- 239000013642 negative control Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 108020001213 potassium channel Proteins 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010839 reverse transcription Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- 210000002027 skeletal muscle Anatomy 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 239000012588 trypsin Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 239000012138 yeast extract Substances 0.000 description 2
- PRDFBSVERLRRMY-UHFFFAOYSA-N 2'-(4-ethoxyphenyl)-5-(4-methylpiperazin-1-yl)-2,5'-bibenzimidazole Chemical compound C1=CC(OCC)=CC=C1C1=NC2=CC=C(C=3NC4=CC(=CC=C4N=3)N3CCN(C)CC3)C=C2N1 PRDFBSVERLRRMY-UHFFFAOYSA-N 0.000 description 1
- 102000007469 Actins Human genes 0.000 description 1
- 108010085238 Actins Proteins 0.000 description 1
- 229920000936 Agarose Polymers 0.000 description 1
- 206010001497 Agitation Diseases 0.000 description 1
- 108091003079 Bovine Serum Albumin Proteins 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 108010076804 DNA Restriction Enzymes Proteins 0.000 description 1
- 230000004543 DNA replication Effects 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 239000007836 KH2PO4 Substances 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 108091028043 Nucleic acid sequence Proteins 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 239000001888 Peptone Substances 0.000 description 1
- 235000005205 Pinus Nutrition 0.000 description 1
- 241000218602 Pinus <genus> Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 108010006785 Taq Polymerase Proteins 0.000 description 1
- 229920004890 Triton X-100 Polymers 0.000 description 1
- 239000013504 Triton X-100 Substances 0.000 description 1
- 102000004142 Trypsin Human genes 0.000 description 1
- 108090000631 Trypsin Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- UDSAIICHUKSCKT-UHFFFAOYSA-N bromophenol blue Chemical compound C1=C(Br)C(O)=C(Br)C=C1C1(C=2C=C(Br)C(O)=C(Br)C=2)C2=CC=CC=C2S(=O)(=O)O1 UDSAIICHUKSCKT-UHFFFAOYSA-N 0.000 description 1
- 244000309466 calf Species 0.000 description 1
- 239000006285 cell suspension Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001436 collagen Polymers 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005138 cryopreservation Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- -1 dimethyl cyanine Chemical compound 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 238000009509 drug development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000012215 gene cloning Methods 0.000 description 1
- 238000003209 gene knockout Methods 0.000 description 1
- 238000010353 genetic engineering Methods 0.000 description 1
- 210000002216 heart Anatomy 0.000 description 1
- ZFGMDIBRIDKWMY-PASTXAENSA-N heparin Chemical compound CC(O)=N[C@@H]1[C@@H](O)[C@H](O)[C@@H](COS(O)(=O)=O)O[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](O[C@H]2[C@@H]([C@@H](OS(O)(=O)=O)[C@@H](O[C@@H]3[C@@H](OC(O)[C@H](OS(O)(=O)=O)[C@H]3O)C(O)=O)O[C@@H]2O)CS(O)(=O)=O)[C@H](O)[C@H]1O ZFGMDIBRIDKWMY-PASTXAENSA-N 0.000 description 1
- 229920000669 heparin Polymers 0.000 description 1
- 229960001008 heparin sodium Drugs 0.000 description 1
- 239000005556 hormone Substances 0.000 description 1
- 229940088597 hormone Drugs 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 210000003130 muscle precursor cell Anatomy 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 210000001087 myotubule Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000002773 nucleotide Substances 0.000 description 1
- 125000003729 nucleotide group Chemical group 0.000 description 1
- 235000003170 nutritional factors Nutrition 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000013600 plasmid vector Substances 0.000 description 1
- 150000003109 potassium Chemical class 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 102000005962 receptors Human genes 0.000 description 1
- 108020003175 receptors Proteins 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007480 sanger sequencing Methods 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 1
- 235000019345 sodium thiosulphate Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 229960005322 streptomycin Drugs 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 239000012096 transfection reagent Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 239000012137 tryptone Substances 0.000 description 1
- 238000001262 western blot Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/63—Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression
- C12N15/79—Vectors or expression systems specially adapted for eukaryotic hosts
- C12N15/85—Vectors or expression systems specially adapted for eukaryotic hosts for animal cells
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07K—PEPTIDES
- C07K14/00—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- C07K14/435—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
- C07K14/46—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates
- C07K14/47—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans from vertebrates from mammals
-
- 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
- C12N15/66—General methods for inserting a gene into a vector to form a recombinant vector using cleavage and ligation; Use of non-functional linkers or adaptors, e.g. linkers containing the sequence for a restriction endonuclease
-
- 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
- C12N5/00—Undifferentiated human, animal or plant cells, e.g. cell lines; Tissues; Cultivation or maintenance thereof; Culture media therefor
- C12N5/06—Animal cells or tissues; Human cells or tissues
- C12N5/0602—Vertebrate cells
- C12N5/0652—Cells of skeletal and connective tissues; Mesenchyme
- C12N5/0658—Skeletal muscle cells, e.g. myocytes, myotubes, myoblasts
-
- 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
- C12N2510/00—Genetically modified cells
-
- 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
- C12N2800/00—Nucleic acids vectors
- C12N2800/10—Plasmid DNA
- C12N2800/106—Plasmid DNA for vertebrates
- C12N2800/107—Plasmid DNA for vertebrates for mammalian
Landscapes
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biomedical Technology (AREA)
- Zoology (AREA)
- Biotechnology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Microbiology (AREA)
- Physics & Mathematics (AREA)
- Rheumatology (AREA)
- Plant Pathology (AREA)
- Cell Biology (AREA)
- Toxicology (AREA)
- Gastroenterology & Hepatology (AREA)
- Medicinal Chemistry (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
Abstract
本发明公开了一种牛KCNJ12基因真核过表达载体的构建与应用。针对秦川牛KCNJ12基因编码区设计引物,并扩增对应的牛KCNJ12基因;构建pcDNA3.1‑KCNJ12重组过表达载体,并转染细胞。本发明通过克隆牛KCNJ12基因并构建真核过表达载体,可应用于牛KCNJ12基因功能研究、鉴定和调控肌肉生长发育。
Description
技术领域
本发明属于基因工程技术领域,涉及一种质粒型重组过表达载体pcDNA3.1-KCNJ12及其构建方法,该过表达载体可以在改造种子细胞和牛KCNJ12功能鉴定中应用。
背景技术
目前,基因表达已经成为生物学、医学和药物开发研究中的主流技术。基因过度表达为基因敲除的“合理逆转”。基因的过表达可以确保产生更多的信使RNA,也就会产生更多的蛋白质或下游产物,其能正调节一个基因的性能,便于研究基因在生物体内的功能。
目前已开发出许多可实现基因过表达的质粒载体。pcDNA3.1(+/-)载体是最常用的哺乳动物表达载体之一,其利用CMV promoter强启动子调控外源基因表达,载体拷贝数、表达量均较高,且无荧光标记,也不携带tag。并具有Amp+原核筛选抗性和Neo+真核筛选抗性,可以利用G418筛选稳定细胞株。pcDNA3.1(+/-)载体质粒大小为5.4Kb,具有多克隆位点区,含多种限制酶酶切位点,可以通过双酶切法整合目的基因以构建实现目的基因表达的重组质粒。
在分子生物学实验中,一般都会使用两种不同的限制酶同时处理目的基因和载体,以防止目的基因和载体出现自连或反向连接的现象。双酶切法利用限制性内切酶可以识别并切割特定的核苷酸序列的原理,用两种不同的限制性内切酶切割靶基因得到前后都带有粘性末端的靶基因片段,与同样经两种限制性内切酶切割得到的带有相同粘性末端的线性载体在T4 DNA连接酶作用下进行连接,从而实现基因克隆。
KCNJ12(Potassium Voltage-Gated Channel Subfamily J Member 12)基因是Kir2亚族中一种编码Kir2.2蛋白的基因。内向整流性钾离子通道(Kir)是一类在多种组织中广泛分布的钾离子通道,自1993年克隆了第一个Kir通道至今,已经发现有约20个成员,构成了一个由七个亚家族(Kir1.x-Kir7.x)组成的超家族。Kir通道的共同特点是它们的内向整流特性,即钾离子内流较外流容易得多。这一特点使其在维持细胞正常兴奋性、保持血钾平衡等方面发挥重要的生理作用。同时各Kir通道亚家族在功能上也有各自的特点,其中Kir2.x主要表达于心脏、骨骼肌和神经系统。
研究表明KCNJ12基因与人心肌收缩有关。也有研究发现KCNJ12基因的四个单核苷酸多态性位点与黄牛(晋南牛、皮南牛、夏南牛)的体重、体长、体高等重要生长性状显著相关。KCNJ12基因为GABAB受体激活通道,通过对胎牛的KCNJ12基因在mRNA水平的表达进行分析,发现该基因在骨骼肌中表达量最高。
尽管KCNJ12基因对牛生长发育具有重要意义,但目前牛肌肉质量的增加主要是通过神经、激素和营养因子刺激肌肉纤维生长和横截面积的增加来实现。KCNJ12基因编码的Kir2.2蛋白对黄牛肉质性能的影响规律尚不清楚,亟需提出可以用于调控黄牛肌肉生长发育性状和牛肉品质的理论依据和实践途径。
发明内容
本发明的目的在于提供一种牛KCNJ12基因真核过表达载体的构建与应用。
为了达到上述目的,本发明采用了以下技术方案:
一种质粒型过表达载体,该表达载体为利用穿梭质粒构建的用于在牛体细胞(例如,牛肌肉细胞及其前体细胞、牛脂肪细胞及其前体细胞)中表达牛KCNJ12基因的重组载体。
优选的,所述重组载体是通过将穿梭质粒与克隆得到的外源性或内源性牛KCNJ12基因,利用双酶切法构建得到的。
优选的,所述穿梭质粒选自pcDNA3.1。
优选的,所述重组载体包括牛KCNJ12基因重组表达盒,牛KCNJ12基因重组表达盒包括CMV启动子以及位于该启动子下游的牛KCNJ12基因编码区(例如,序列如SEQ.ID.NO.1所示的秦川牛KCNJ12基因编码区)。
优选的,所述重组载体还包括原核氨苄抗性基因(可用于后续载体构建中的筛选)。
上述质粒型过表达载体的制备方法,包括以下步骤:
用高保真酶PCR扩增牛KCNJ12基因编码区序列,对PCR产物进行加A处理,然后连接到pMD-19T载体,然后将连接产物经转化、涂板(抗性筛选)后,挑取单克隆进行鉴定,得到重组载体pMD-19T-KCNJ12;将重组载体pMD-19T-KCNJ12和穿梭质粒(例如,pcDNA3.1载体)分别经Kpn I和Xba I双酶切,将双酶切获得的牛KCNJ12基因编码区序列和线性化pcDNA3.1载体利用DNA连接酶进行连接反应,连接产物经转化、涂板(抗性筛选)后,挑取单克隆进行鉴定,得到重组载体pcDNA3.1-KCNJ12。
上述质粒型过表达载体在秦川牛等黄牛品种的KCNJ12基因功能鉴定中的应用。
优选的,在秦川牛等黄牛品种的KCNJ12基因功能鉴定中,将重组载体pcDNA3.1-KCNJ12转染从对应黄牛品种个体中分离的牛肌肉细胞(例如,牛原代肌肉细胞),12-24h后检测该牛肌肉细胞中KCNJ12基因的mRNA和对应蛋白表达水平;同时,检测过表达KCNJ12基因后牛肌肉细胞增殖、分化标志基因(PCNA、CDK2、MyoD、MyoG、MyHC)的表达情况。
上述质粒型过表达载体在细胞改造中的应用。
优选的,除了转染牛肌肉细胞,将重组载体pcDNA3.1-KCNJ12转染牛脂肪细胞、293细胞、C2C12细胞、3T3L细胞等细胞系。
上述质粒型过表达载体在体内或体外肌肉生长发育调控中的应用。
优选的,将重组载体pcDNA3.1-KCNJ12转染从对应黄牛品种个体中分离的牛肌肉细胞(例如,牛原代肌肉细胞),在牛肌肉细胞中检测到KCNJ12基因过表达后继续对牛肌肉细胞进行培养,发现KCNJ12基因过表达可以促进肌细胞的增殖,从而加快肌肉发育进程和再生。
本发明的有益效果体现在:
本发明构建了能够过表达牛KCNJ12基因的重组载体,本发明所构建的载体转染原代培养牛肌肉细胞等同源或异源宿主细胞后,可获得KCNJ12基因mRNA和对应蛋白在宿主细胞中的高效表达,为KCNJ12基因功能鉴定和改造细胞,及调控肌肉代谢和生长发育奠定基础。
进一步的,本发明发现pcDNA3.1在转染宿主细胞、引发过表达水平、标志基因激活能力等方面优于pcDNA3等其他载体骨架,通过选择的酶切位点,解决了载体骨架产生的发卡结构影响插入基因的表达效率的问题。
附图说明
图1为秦川牛KCNJ12基因PCR扩增产物电泳图;其中,M为D2000 Marker,条带分别为100、250、500、750、1000、2000bp。
图2为pcDNA3.1-KCNJ12重组质粒测序鉴定结果。
图3为pcDNA3.1-KCNJ12重组质粒mRNA水平过表达效率检测结果(**P<0.01)。
图4为pcDNA3.1-KCNJ12重组质粒蛋白水平过表达效率检测结果;其中,以β-actin为内参。
图5为转染pcDNA3.1-KCNJ12重组质粒后对肌肉细胞增殖、分化等肌肉发育过程标志基因mRNA检测结果(*P<0.05;**P<0.01)。
具体实施方式
以下结合附图和实施例对本发明作进一步详细说明,所述实施例仅用于解释本发明,而非对本发明保护范围的限制。
(一)pcDNA3.1-KCNJ12重组过表达质粒的构建
1、材料和方法:
1.1、仪器:
超净工作台、生化培养箱、基因扩增仪、PTC-200单槽梯度基因扩增仪、Heraeus冷冻高速离心机(德国)、Bio-Rad凝胶成像分析仪(USA)、CO2培养箱、HZS-H水浴振荡器(哈尔滨)、Eppendorf移液器、DYY-Ⅲ型稳压稳流电泳仪(北京六一)、DYY-Ⅲ31A和DYY-Ⅲ28D电泳槽(北京六一)、制冰仪、MDF-382E超低温冰箱(日本三洋)、Eppendorf台式高速离心机、Sartorious电子天平(德国)、常规冰箱等。
1.2、生化试剂和试剂盒:
Long Taq聚合酶、PrimeSTAR DNA聚合酶、DNA限制性内切酶(Kpn I、Xba I等)、胶原蛋白、胰蛋白酶、胶原酶Ⅰ、DNA Marker、T4 DNA Ligase、Trizol、反转录试剂盒、表达载体(pMD-19T,Takara;pcDNA3.1(+),Thermo)、质粒提取试剂盒、DNA凝胶回收试剂盒、胎牛血清等。
1.3、培养基:
1)抗性筛选
LB培养基:胰蛋白胨、酵母提取物、NaCl,及琼脂粉;950mL去离子水中加入胰蛋白 胨10g、酵母提取物5g、NaCl 10g,用5mol/LNaOH调pH至7.0,加15g琼脂粉。
抗性:氨苄青霉素(1:100比例添加)。
2)细胞培养
DMEM完全培养基。
1.4、普通试剂:
肝素钠、Tris、EDTA、NaCl、NaOH、无水乙醇、醋酸钠、十二烷基磺酸钠(SDS)、溴化乙锭(EB)、溴酚蓝、二甲基苯菁FF、乙酸、蔗糖、去离子甲酰胺、硝酸、盐酸、硝酸银、无水碳酸钠、硫代硫酸钠、甲醛、硼酸、琼脂糖、KCl、Na2HPO4、KH2PO4、Tris饱和酚(pH=8.0)、氯仿、异戊醇、甘油、石蜡油。
1.5、秦川牛KCNJ12基因PCR引物的合成:
参照GenBank公布的KCNJ12基因mRNA序列(NM_001024690.2),设计扩增KCNJ12基因编码区的引物:
上游引物:5'>GGGGTACCGGATGACTGCGTCCGGCCGC<3'
下游引物:5'>GCTCTAGACTCAGATCTCAGACTCCCGT<3'
其中,上、下游引物的下划线部分为Kpn I,Xba I的酶切位点。引物由生工生物工程(上海)股份有限公司合成。
1.6、PCR扩增秦川牛的KCNJ12基因片段:
(1)、秦川牛肌肉组织cDNA获取
采集秦川牛肌肉组织(陕西秦宝牧业有限公司屠宰场,2019年3月),利用Trizol法提取RNA,使用PrimeScriptTM反向转录RT试剂盒(Clontech,TaKaRa),依据提取的RNA合成cDNA。
(2)、PCR反应体系为50μL,见表1:
表1.PCR反应体系
(3)、PCR反应程序,见表2:
表2.PCR反应程序
将PCR产物进行1.5%琼脂糖凝胶电泳分离,胶回收扩增的KCNJ12基因片段。
1.7、pMD-19T-KCNJ12重组质粒的构建:
使用高保真酶PrimeSTAR扩增的KCNJ12基因片段无法进行TA克隆,需做加A处理,才可以连到pMD-19T载体上;因此对PCR扩增的KCNJ12基因片段进行加A反应(反应条件:72℃水浴,10分钟),反应体系如表3所示:
表3.加A反应体系
将PCR扩增的KCNJ12基因片段经加A反应后,与pMD-19T载体经T4 DNA Ligase于16℃过夜连接,转化E.coli DH5α感受态细胞(西安擎科生物),挑取菌落进行扩增,质粒回收后经Kpn I和Xba I双酶切鉴定(20μL酶切反应体系见表4,酶切消化条件:37℃,3-10h),测序验证,得到携带KCNJ12基因的pMD-19T-KCNJ12质粒(即pMD-19T-KCNJ12重组质粒)。
表4.Kpn I和Xba I酶切反应体系
1.8、携带KCNJ12基因的pcDNA3.1-KCNJ12重组质粒的构建:
Kpn I和Xba I双酶切pMD-19T-KCNJ12重组质粒和pcDNA3.1质粒,酶切产物经1.5%琼脂糖凝胶电泳分离,胶回收后将KCNJ12基因编码区片段与pcDNA3.1质粒骨架,经T4DNA Ligase 16℃过夜连接(25μL连接体系见表5),转化E.coli DH5α感受态细胞,挑取菌落进行扩增,质粒回收后经Kpn I和Xba I双酶切鉴定,测序验证,得到pcDNA3.1-KCNJ12重组质粒。
表5.连接反应体系
2、结果:
2.1、KCNJ12基因PCR扩增结果:
以秦川牛肌肉组织cDNA为模板,参考NCBI上公布的牛KCNJ12基因mRNA序列(登录号:NM_001024690.2)设计引物,利用PrimeSTAR DNA聚合酶进行PCR扩增,PCR产物的电泳分析结果如图1所示,图1左侧泳道显示了KCNJ12基因扩增产物为1281bp。
2.2、pMD-19T-KCNJ12重组质粒的酶切鉴定结果:
为了鉴定pMD-19T-KCNJ12重组质粒(即含有秦川牛KCNJ12基因编码区序列的阳性质粒),以Kpn I和Xba I双酶切回收的质粒,经过琼脂糖凝胶电泳分析,显示Kpn I和Xba I双酶切得到KCNJ12基因编码区片段和pMD-19T骨架(2692bp)。
2.3、pcDNA3.1-KCNJ12重组质粒鉴定结果:
采用Sanger测序,证明成功获得pcDNA3.1-KCNJ12重组质粒(阳性克隆),结果如图2所示。
(二)KCNJ12基因在秦川牛肌肉细胞中的过表达
1、秦川牛肌肉细胞的原代培养
将胎牛置于操作盘中,以含有1%双抗(青霉素-链霉素)的无菌PBS冲洗3遍,沿着胎牛背脊切开表皮组织,剪出背肌,置于含有1%双抗的PBS(6cm培养皿)中,用剪刀尽量剪碎肌肉块,随后收集到50mL离心管中,加入胶原酶Ⅰ,37℃水浴消化1.5h后,用200目尼龙网过滤,收集滤液于离心管中,1000r/min离心10min,去除上清液,沉淀即为肌肉细胞,用含15%FBS及1%双抗的DMEM完全培养基重悬细胞,通过细胞计数,按60%比例接种细胞悬液于6cm培养皿中,37℃,5%CO2培养箱中培养2h后,吸取上层培养液于新的6cm培养皿中继续培养,至细胞密度达到80%-90%左右,细胞传代或冻存以备后续实验用。
2、KCNJ12重组过表达载体转染牛肌肉细胞
当培养的秦川牛原代肌肉细胞密度达到60%,加入脂质体包裹的pcDNA3.1-KCNJ12重组质粒(按LipofectamineTM 2000 Transfection Reagent试剂盒说明进行操作)转染细胞。将携带秦川牛KCNJ12基因的pcDNA3.1-KCNJ12重组质粒转染原代培养的秦川牛肌肉细胞后,经qRT-PCR检测KCNJ12基因的表达情况,以及过表达KCNJ12基因下肌肉细胞增殖标志基因(PCNA、CDK2)和肌肉细胞分化标志基因(MyoD、MyoG、MyHC)在牛肌肉细胞中的表达情况;另外,利用Western-blot技术检测KCNJ12基因编码蛋白的表达情况。
3、结果
细胞转染后24h时,qRT-PCR检测证明,与阴性对照相比(阴性对照为pcDNA3.1(+)空载体,没有携带KCNJ12基因,简称NC),KCNJ12基因mRNA及对应蛋白的表达量明显增加(图3、图4)。
通过检测增殖、分化相关标志基因的表达,表明在牛原代肌肉细胞中过表达KCNJ12可促进肌细胞增殖,并抑制其分化进程(图5)。即过表达KCNJ12基因使得肌肉细胞增殖、分化标志基因(MyoD、MyoG、PCNA、MyHC等)在牛肌肉细胞中差异表达。
(三)EdU试验检测细胞增殖
EdU检测试剂盒购买于广州锐博生物公司,按说明书步骤进行:
(1)细胞培养和转染:将牛肌原代细胞接种于96孔板当中,每孔(约1×104个细胞)加入100μL DMEM完全培养基,当细胞密度达到70%左右,分别用pcDNA3.1-KCNJ12、pcDNA3.1(+)空载体转染细胞,转染后培养18-24h。
(2)EdU染色:每孔中加入100μL 50μmol/L浓度含EdU的培养基,孵育2h后去除培养基,PBS清洗细胞3次,每次3-5min。
(3)细胞固定:每孔加入50μL 4%多聚甲醛溶液进行固定,脱色摇床室温孵育30min后吸除,加入50μL甘氨酸溶液,同样室温孵育5min后弃除,PBS清洗细胞3次,每次3-5min。
(4)Apollo染色:每孔加入100μL的Apollo染色反应液,室温避光摇床上孵育30min,弃去后,加入100μL含0.5%Triton X-100的PBS溶液孵育3次,10min/次,弃去后,每孔加入100μL甲醛清洗2次,5min/次,再PBS清洗5min。
(5)DNA染色:每孔加入100μL 1×Hoechst33342反应液,室温避光摇床孵育30min后,弃除反应液,PBS清洗3次,5min/次。
(6)EdU成像:染色完立即使用荧光倒置显微镜观察成像,并进行细胞数目的分析。发现过表达KCNJ12后,DNA复制阳性细胞数目增加,即牛肌原代细胞增殖速率提高。
(四)检测过表达KCNJ12基因对相应细胞结构和功能的影响,如小鼠C2C12细胞系,结果发现过表达KCNJ12后,可同样促进细胞增殖。
<110> 西北农林科技大学
<120> 一种牛KCNJ12基因真核过表达载体的构建与应用
<160> 3
<210>1
<211>1281
<212> DNA
<213> 秦川牛
<400> 1
gccggggcca ggaacagccg cccggagctc ggaggacgcg gagcgcgcag tgtccagggc 60
actgaccgag ggtcttccag ccgctgaggc ctctccagcc ggtggggcaa tggcagccac 120
agctaatgca gccttgaaga cggtcacttg cttggtgagc accgttactt agaagatagg 180
gctccagagg agctgctcaa tcctgagcca gtctggggtc aagcggggtc tgctgccccc 240
acctcctgga tgactgcgtc cggccgcaca aacccctaca gcatcgtgtc ttcagaggag 300
gacgggctgc gcttggtcac catgtcgggc gccaacggct tcggcaatgg caaggtgcac 360
acgcggcgca ggtgccggaa tcgcttcgtc aagaagaatg gccagtgcaa catcgagttc 420
gccaacatgg atgagaagtc gcagcgctac ctggcggaca tgttcaccac gtgcgtggac 480
atccgctggc gctacatgct gctcatcttc tcgctggcct tcctcgcctc ctggttgctg 540
ttcggggtca tcttctgggt cattgctgtg gcccatgggg acctggagcc tgctgaagcc 600
catggccgca cgccgtgcgt gctgcaggtg catggcttca tggcggcctt cctcttctcc 660
attgagacgc agaccaccat tggctacggg ctgcgctgcg tgaccgagga gtgcccggtg 720
gcggtgttca tggtggtggc gcagtccatc gtgggctgca tcatcgactc cttcatgatt 780
ggcgccatca tggccaagat ggcgcggccc aagaagcgtg cacagacgct gctattcagc 840
cacaatgcgg tggtggcgct gcgtgacggc aagctctgcc tcatgtggcg cgtgggcaac 900
ctacgcaaga gccatattgt ggaggcccac gtgcgggccc agctcatcaa gccccgggtc 960
acggaggagg gcgagtacat cccgctggac cagatcgaca ttgatgtagg ctttgacaag 1020
ggcctggacc gcatcttcct ggtgtctccc atcaccatcc tgcacgagat cgacgaggcc 1080
agccctctgt ttggcatcag ccggcaggac ctggaaacgg atgacttcga gatcgttgtc 1140
atcctggagg gcatggtgga ggccacggcc atgaccacgc aggcccgcag ctcctacctg 1200
gccaacgaga tcctgtgggg ccaccgcttt gagcctgtcc tctttgagga gaaaaaccag 1260
tacaagatcg actactcgca t 1281
<210>2
<211> 28
<212> DNA
<213> 人工合成
<400> 2
ggggtaccgg atgactgcgt ccggccgc 28
<210>3
<211> 28
<212> DNA
<213> 人工合成
<400> 3
gctctagact cagatctcag actcccgt 28
Claims (6)
1.一种质粒型过表达载体在体外肌肉生长发育调控中的应用,其特征在于:该表达载体为利用穿梭质粒构建的用于在牛体细胞中表达牛KCNJ12基因的重组载体,所述牛体细胞选自培养的原代牛肌肉细胞,所述生长发育调控为促进所述牛肌肉细胞增殖。
2.根据权利要求1所述的应用,其特征在于:所述重组载体是通过将穿梭质粒与克隆得到的外源性或内源性牛KCNJ12基因,利用双酶切法构建得到的。
3.根据权利要求1所述的应用,其特征在于:所述穿梭质粒选自pcDNA3.1。
4.根据权利要求1所述的应用,其特征在于:所述重组载体包括牛KCNJ12基因重组表达盒,牛KCNJ12基因重组表达盒包括CMV启动子以及位于该启动子下游的牛KCNJ12基因编码区。
5.根据权利要求4所述的应用,其特征在于:所述重组载体还包括原核抗性基因表达盒。
6.根据权利要求1所述的应用,其特征在于:所述质粒型过表达载体的制备方法包括以下步骤:
PCR扩增牛KCNJ12基因编码区序列,对PCR产物进行加A处理,然后连接到pMD-19T载体,得到重组载体pMD-19T-KCNJ12;将重组载体pMD-19T-KCNJ12和pcDNA3.1载体分别经Kpn I和Xba I双酶切,将双酶切获得的牛KCNJ12基因编码区序列和线性化pcDNA3.1载体利用DNA连接酶进行连接,得到重组载体pcDNA3.1-KCNJ12。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911167804.XA CN110863009B (zh) | 2019-11-25 | 2019-11-25 | 一种牛kcnj12基因真核过表达载体的构建与应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201911167804.XA CN110863009B (zh) | 2019-11-25 | 2019-11-25 | 一种牛kcnj12基因真核过表达载体的构建与应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN110863009A CN110863009A (zh) | 2020-03-06 |
CN110863009B true CN110863009B (zh) | 2021-12-07 |
Family
ID=69655370
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201911167804.XA Expired - Fee Related CN110863009B (zh) | 2019-11-25 | 2019-11-25 | 一种牛kcnj12基因真核过表达载体的构建与应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110863009B (zh) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107034282A (zh) * | 2017-05-10 | 2017-08-11 | 西北农林科技大学 | 一种快速检测黄牛kcnj12基因snp的rflp方法及其应用 |
CN107523643A (zh) * | 2017-10-20 | 2017-12-29 | 西北农林科技大学 | 一种黄牛kcnj12基因cnv标记辅助检测生长性状的方法及其专用试剂盒 |
CN108753779A (zh) * | 2018-06-07 | 2018-11-06 | 天津农学院 | 牛lncRNA-133a及在牛骨骼肌卫星细胞增殖分化调控中的应用和验证方法 |
-
2019
- 2019-11-25 CN CN201911167804.XA patent/CN110863009B/zh not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107034282A (zh) * | 2017-05-10 | 2017-08-11 | 西北农林科技大学 | 一种快速检测黄牛kcnj12基因snp的rflp方法及其应用 |
CN107523643A (zh) * | 2017-10-20 | 2017-12-29 | 西北农林科技大学 | 一种黄牛kcnj12基因cnv标记辅助检测生长性状的方法及其专用试剂盒 |
CN108753779A (zh) * | 2018-06-07 | 2018-11-06 | 天津农学院 | 牛lncRNA-133a及在牛骨骼肌卫星细胞增殖分化调控中的应用和验证方法 |
Non-Patent Citations (1)
Title |
---|
中国三个黄牛群体 KCNJ12 基因多态性、mRNA 表达及其遗传效应的研究;彭文文;《中国优秀硕士学位论文全文数据库 农业科技辑》;20180215;摘要、第2.2节 * |
Also Published As
Publication number | Publication date |
---|---|
CN110863009A (zh) | 2020-03-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5735927B2 (ja) | タンパク質生産の増強のためのmRNAの一次構造の再操作 | |
EP1803815A2 (de) | Starker homologer Promotor aus Hamster | |
CN111154763B (zh) | 长链非编码RNA lncMGPF在调控猪肌肉发育功能中的应用 | |
CN110484538A (zh) | 识别猪ROSA26基因的sgRNA及其编码DNA、基因编辑方法、试剂盒和应用 | |
CN112226460B (zh) | 稳定表达猪源宿主限制因子a3z2分子的细胞系的筛选、培育方法及其应用 | |
CN111518812B (zh) | 一种编辑绵羊FGF5基因实现选择性剪接的sgRNA、成套核酸分子和应用 | |
CN110863009B (zh) | 一种牛kcnj12基因真核过表达载体的构建与应用 | |
CN113881678B (zh) | 一种c/ebpz基因启动子及其应用 | |
CN110777166B (zh) | 一种牛klf3基因真核过表达载体的构建与应用 | |
CN110511933B (zh) | 一种大鼠长链非编码lncRNA-lncMSTRG10078及其抵抗细胞损伤的应用 | |
CN114990093A (zh) | 氨基酸序列小的蛋白序列mini rfx-cas13d | |
CN108753819B (zh) | 真核表达载体、真核表达系统、二者的制备方法和应用及gdf11蛋白 | |
CN115322993B (zh) | 一种用于猪基因组定点整合外源基因的安全位点及用其构建猪育种群方法 | |
CN113227375A (zh) | 合成的微小rna模拟物 | |
CN110747225B (zh) | 一种斜生栅藻叶绿体同源重组空载体及其应用 | |
CN110946877A (zh) | 一种治疗肝硬化的干细胞生物制品及其制备方法与应用 | |
CN110564743A (zh) | 一种六盘山黄牛circR-UQCC1基因及其过表达载体、构建方法和应用 | |
WO2000001810A1 (en) | Novel promoter sequences of myostatin gene | |
CN114908097B (zh) | 一种Dox调控的记录猪组织分化与器官发生的谱系示踪技术 | |
CN109438565B (zh) | 飞蝗叉头转录因子LmFoxO及其编码基因与应用 | |
CN110042121B (zh) | 一种促进白血病细胞分化的方法及其应用 | |
CN111944033B (zh) | Rbp4蛋白或其编码基因在调控成肌细胞分化和融合中的应用 | |
CN110511932B (zh) | 棉花纤维长度相关microRNA477及其前体DNA和应用 | |
CN110904105B (zh) | 一种能被马氏珠母贝smad1/5基因抑制的msx启动子及其应用 | |
CN102399810A (zh) | 一种携带attB高效定向整合假attP位点的载体及其转基因方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211207 |