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禽白血病病毒衣壳蛋白p27基因的原核表达及多克隆抗体的制备
引用本文:李德龙,刘在斯,贠炳岭,吴关,高玉龙,秦立廷,祁小乐,王永强,高宏雷,刘思当,王笑梅. 禽白血病病毒衣壳蛋白p27基因的原核表达及多克隆抗体的制备[J]. 中国家禽, 2012, 0(9): 13-16
作者姓名:李德龙  刘在斯  贠炳岭  吴关  高玉龙  秦立廷  祁小乐  王永强  高宏雷  刘思当  王笑梅
作者单位:中国农业科学院哈尔滨兽医研究所;山东农业大学
基金项目:现代农业肉鸡产业技术体系建设(nycytx-42-G3-01);国家自然科学基金(31072146);哈尔滨市科技攻关计划项目(2010AA6AN034)
摘    要:从J亚群禽白血病病毒(ALV-J)HB09JY03株感染的DF-1细胞的冻融裂解液中提取DNA,通过PCR方法扩增出约720bp的gag-p27基因片段,克隆至pMD18-T载体。鉴定正确后,将该片段克隆至pET-30a(+)原核表达载体,经IPTG诱导表达。表达产物经His Trap TMHP纯化后,测蛋白浓度达到9mg/mL。用兔抗自然p27蛋白阳性血清进行Western blot检测,表明重组p27蛋白有抗原反应活性。免疫新西兰大白兔后,产生的抗体与禽白血病全病毒抗原可以发生特异性反应。所制备的重组p27蛋白和多克隆抗体将在ALV的抗原分析、血清学诊断等方面有着重要的应用价值。

关 键 词:禽白血病  p27基因  原核表达  多克隆抗体

Expression of Capsid Protein p27 Gene of Avian Leucosis Virus and Preparation of Multiclonal Antibodies Against Recombinant p27 Protein
LI Delong,LIU Zaisi,YUN Bingling,WU Guan,GAO Yulong,QIN Liting,QI Xiaole,WANG Yongqiang,GAO Honglei,LIU Sidang,Wang Xiaomei. Expression of Capsid Protein p27 Gene of Avian Leucosis Virus and Preparation of Multiclonal Antibodies Against Recombinant p27 Protein[J]. China Poultry, 2012, 0(9): 13-16
Authors:LI Delong  LIU Zaisi  YUN Bingling  WU Guan  GAO Yulong  QIN Liting  QI Xiaole  WANG Yongqiang  GAO Honglei  LIU Sidang  Wang Xiaomei
Affiliation:1(1.Harbin Veterinary Research Institute of CAAS,Harbin,Heilongjiang 150001;2.Shandong Agricultural University,Shandong Tai’an,Shandong 271000)
Abstract:DNA was extracted from DF-1 cell lysate infected with subgroup J of avian leucosis virus(ALV) and the gag-p27 gene was amplified by PCR.Then the gene was cloned into plasmid pMD18-T and sequenced.After identified exactly,the whole coding fragment of p27 gene was cloned into prokaryotic expression vector pET-30a(+) and induced with IPTG.After purification with His TrapTM HP,the density of p27 recombinant protein was up to 9 mg/mL.The immune reactivity of recombinant p27 protein was identified with positive antiserum against nature p27 protein specifically by Western-blot.Multiclonal antibodies against recombinant p27 protein was obtained by subcutaneous injection of rabbit,which is specific to ALV antigen and it would be very useful as a tool for antigenic analysis and serological diagnosis of ALV.
Keywords:avian leucosis  p27 gene  prokaryotic expression  multiclonal antibodies
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