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《基因C型鸭肝炎病毒VP1基因的克隆表达及其多克隆抗体的制备.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、浙江农业学报ActaAgriculturaeZhefiangensis,2011,23(2):258—262http://www.zjnyxb.cn赵立娜,崔言顺,任建亭,等.基因C型鸭肝炎病毒VP1基因的克隆表达及其多克隆抗体的制备[J].浙江农业学报,2011,23(2):258—262.基因C型鸭肝炎病毒唧基因的克隆表达及其多克隆抗体的制备赵立娜,崔言顺,任建亭,李建亮,黄兵,李玉峰,马秀丽,(山东农业大学动物医学院,山东泰安271018;山东省农业科学院家禽研究所,山东省家禽疫病诊断与免疫重点实验室山东济南250023;
2、山东省东营市广饶县中等专业中学,山东广饶257300)摘要:采用RT—PCR方法,扩增基因C型DHVJFX08株的VP1基因,与pMD18一T载体进行连接,构建新型DHVVPI基因克隆重组质粒。然后将j基因定向插入到pET-32a(+)表达载体中,筛选原核表达载体pET-32a—VP1,进行IPTG诱导表达。SDS—PAGE电泳分析表明,基因C型DHV—VP1基因可在大肠杆菌中稳定高效的表达。Western—blot检测表明,表达产物可与基因C型DHV阳性血清发生特异性反应。将纯化的重组蛋白免疫4周龄SPF鸡,以纯化的VP1重组
3、蛋白和基因c型DHV全病毒分别包板,制备的抗血清ELISA效价分别可达1:25600,1:51200,表明该重组蛋白具有良好的免疫原性。关键词:鸭肝炎病毒;基因C型;VP1基因;克隆表达;多克隆抗体中图分类号:S858.32文献标志码:A文章编号:1004—1524(2011)02—0258—05CloningandexpressionofvPlgeneofDuckhepatitisvirusgenotypeCandpreparationofitspolyclonalantibodyZHAOLi—na’,CUIYan—shun,
4、RENJian—ting,LIJian—liang。,HUANGBing,LIYu—feng,MAXiu—li’(‘CollegeofAnimalScience&VeterinaryMedicine,ShandongAgriculturalUniversity,Tai'an271018,China;InstituteofPoultryScience,ShandongAcademyofAgriculturalSciences,Jinan250023,China;SecondarySpecial—izedSchoolin,Guang
5、raoCounty,ShandongProvince,Guangrao257300,ina)Abstract:TheJgeneofstrainJFX08ofDuckhepatitisvirus(DHV)genotypeCwasamplifiedbyreversetran—scription.polymerasechainreaction(RT—PCR).ToobtainexpressionplasmidpET一32a—VP1,theVP1genewasclonedintopMD18一TandpET一32a(+)vectors.S
6、DS.PAGEanalysisrevealedthattherecombinantVP1proteinofgenotypeCofDuckhepatitisviruswasexpressedinEscherichiacoliBI21(DE3)atahighlevelafterbeinginducedwithisopropyhhio—B—D—galactoside(IPTG)stably.Western—blotrevealedthattherecombinantproteinwasrecognizedspecificallybya
7、ntiseraagainstthegenotypeCofDuckhepatitisvirus.Four—week—oldSPFchickenswereimmunizedwiththeDurifledrecombinantprotein.ELISAestablishedbythepurifiedrecombinantproteinandDHVgenotypeCrevea1edthatthetiterofantiserumwas1:25600and1:51200respectively,whichindicatedthatthere
8、combinantproteinhadgoodimmunogenicity.Keywords:Duckhepatitisvin;genotypeC;VPIgene;cloningandexpression;polyclonalantibody收稿日期:2010—
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