资源描述:
《种子蛋白体靶向表达口服重组胰岛素原载体构建及转化水稻》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国水稻科学(ChinJRiceSci),2015,29(5):481-489http://www.ricesci.cnDOI:10.3969/ji.ssn.1001G7216.2015.05.005481种子蛋白体靶向表达口服重组胰岛素原载体构建及转化水稻唐湧洲俞越赵艳∗(浙江工商大学食品与生物工程学院,杭州310018;∗通讯联系人,EGmail:yanzhao9918@163.com)ConstructionofSeedProteinBodyTargetedExpressionVectorandTransformationRiceforOralRecombin
2、antProinsulinTANGYongGzhou,YUYue,ZHAOYan∗(CollegeofFoodScienceandBiotechnology,ZhejiangGongshangUniversity,Hangzhou310018,China;∗Correspondingauthor,EGmail:yanzhao9918@163c.om)TANGYongzhou,YUYue,ZHAOYan.Constructionofseedproteinbodytargetedexpressionvectorandtransformationricefororalre
3、combinantproinsulin.ChinJRiceSci,2015,29(5):481G489.Abstract:Developentoforalrecombinantproinsulinusingriceseedsasbioreactorshowsgoodapplicationfuture.AfusiongeneofthecholeratoxinBsubunitandhumanproinsulin(CTBIN)withanendoplasmicreticulumretentionsignal(KDEL)atCGterminuswasdesignedfori
4、tsselfGmaturationprocessinhumangutandsynthesizedaccordingtotheoptimizedcodeusagebiasofrice.ThesyntheticCTBINwasintroducedtothevectorpCAMBIA1302andexpressedunderthe2.4kbpromotersequenceofriceglutelinGluB1withitssignalpeptide(pGluB1sig),whichwasclonedbyPCRfromthejaponicariceNipponbaregen
5、ome.ThusthericeseedproteinbodytargetedexpressionvectorpCAMBIA1302GpGluB1sigGCTBINGNosfororaldeliveryofrecombinantproinsulinwasconstructedandthentransformedintoNipponbareviaAgrobacteriumGmediatedmethod.Totally46transgenicriceplantswereobtainedandtheexpressionofthefusionproteinCTB::Human
6、proinsulininriceseedswasdetectedbyWesternGblot.Keywords:oralrecombinantproinsulin;proteinbodytargetedexpression;vectorconstruction;transformaiton;rice唐湧洲,俞越,赵艳.种子蛋白体靶向表达口服重组胰岛素原载体构建及转化水稻.中国水稻科学,2015,29(5):481G489.摘要:应用水稻种子生物反应器开发口服重组胰岛素原具有重要应用前景.通过分子设计保证重组胰岛素原在人体肠道内的自主加工成熟,根据水稻密码子偏爱性人工
7、合成了霍乱毒素β亚基和人胰岛素原的融合基因(choleratoxinBsubunitfusedwithhumanproinsulin,CTBIN),并在C末端添加内质网滞留信号KDEL.通过PCR技术从粳稻品种日本晴全基因组中克隆谷蛋白启动子及其信号肽序列pGluB1sig(GluB1promoteranditssignalpeptide)用于驱动融合基因CTBIN的表达,插入载体pCAMBIA1302,构建了水稻种子蛋白体靶向表达口服重组胰岛素原的载体pCAMBIA1302GpGluB1sigGCTBINGNos.采用农杆菌介导法转化日本晴,获得了46株转基因