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《乙肝病毒突变体HBx-d382特异性抗体的制备及鉴定-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、784实用预防医学2014年7月第21卷第7期PractPreyMed,Ju1.2014,Vo1.21,No.7·论著·乙肝病毒突变体HBx—d382特异性抗体的制备及鉴定祝玲玲,朱平安,金娴,钟小婷,吴翔,樊春卉1.深圳市第七人民医院,广东深圳518081;2.中南大学湘雅医学院摘要:目的制备乙肝病毒x基因突变体HBx—d382特异性抗体。方法运用生物信息学和多肽合成法制备HBx—d382特异性多肽(HBx—d382P),采用高效液相色谱法(HPLC)和电喷雾离子化质谱(EsI—Ms)测定合成多肽的纯度和分子量。用化学方法将多肽与匙孔血蓝蛋
2、白(KLH)偶联成多肽抗原一d382P—KLH,并经完全弗氏佐剂(CFA)和不完全弗氏佐剂(IFlA)乳化,免疫新西兰雄性大白兔。用ELISA鉴定抗血清效价、亲和层析法纯化抗体、Dotblot评价抗体特异性。结果经HPLC和ESI—MS分析,合成多肽符合HBx—d382特异性抗体制备的要求。ELISA和Dotblot试验结果显示,兔抗血清的效价为6.4×10,纯化后的一d382抗体特异性高。结论获得了高效价高特异性的I-IBx—d382多克隆抗体,为进一步研制HBx—d382免疫检测试剂盒打好了基础。关键词:乙肝病毒;HBx—d382突变体;
3、多肽;特异性抗体中图分类号:R512.62文献标识码:A文章编号:1006—3110(2o14)07—0784—04DOI:10.39j.issn.1006—3110.2014.07.006n即嘶mantii~kation0feci6caraihoayagahlstHBxdeletionrolla_ntHBx—d382ZHLing—ling,ZHUPing—an,JINXian,ZHONGXiao—ting,WUXiang,FANChun—huiTheSeventhHospitalofShenzhen,Shenzhen,Guangdong51
4、8081,ChinaAbstract:ObjectiveTopreparespecificantibodyagainstHBxdeletionmutantHBx—d382.MethodsSpecificpolypep—tideofHBx—d382mutant(HBx—d382P)waspreparedbybioinformaticsandpolypeptidesynthesismethods,andpurityandmolecularweightofsyntheticpolypeptideweredeterminedbyusinghigh—p
5、erformanceliquidchromatography(HPLC)anddec—trosprayionizationmassspectrometry(ESI—MS).Thepolypeptidewascoupledtokeyholelimpethemocyanin(KLH)toformacomplexofHBx—d382P—KLH.ThemaleNewZealandrabbitswereimmunizedwithHBx—d382P—KLHemulsifiedbycom—pleteFreund’Sadjuvant(CFA)andincom
6、pleteFreund’Sadjuvant(IFA),andrabbitantiserawerepurifiedbyaffinitychromato—graphy.ThetiterofantiseraandspecificityofpolyclonalantibodyweredeterminedbyELISAandDotblotanalysisrespectively.ResultsTheresultsofHPLCandESI—MSanalysesshowedthatsyntheticpeptidecouldmeettherequiremen
7、tofHBx—d382specificantibodypreparation.Thetiterofrabbitantiserumwas6.4×10.DOtblotanalysisshowedthatthepurifiedanti—bodyreactedwithHBx—d382Ponly.ConclusionsTherabbitpolyclonalantibodyofHBx—d382Pwithhightiterandhighspecificityisobtained,whichcanpromotethedevelopmentofHBx—d382
8、mutantimmunoassaykit.Keywords:HepatitisBvirus;HBx—d382mutant;Polypeptide;Specifica
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