生物技术
生物技術
생물기술
BIOTECHNOLOGY
2010年
2期
12-14
,共3页
杨威威%沈晓晓%郑珍珍%朱振洪
楊威威%瀋曉曉%鄭珍珍%硃振洪
양위위%침효효%정진진%주진홍
苦瓜%MAP30%毕赤酵母%表达载体
苦瓜%MAP30%畢赤酵母%錶達載體
고과%MAP30%필적효모%표체재체
Momordica charantia L%MAP30%Pichia pastoris%expression vector
目的:从苦瓜中克隆MAYO全长基因,并将该基因连接至表达载体pPIC9中,建立酵母菌落PCR筛选方法.方法采用改良SDS法从苦瓜表皮中提取基因组DNA,设计特异件的引物,通过PCR技术扩增出全长861bp的MAP30基因.该基因经Xho Ⅰ和EcoR Ⅰ双酶切,连接至毕赤酵母表达载体pPIC9中.重组载体转化GS115菌株,运用菌落PCR鉴定重组菌株.结果:基因测序表明,该基因已成功插入酵母表达载体pPIC9α-factor分泌信号下游,同源性分析表明该基因与GeneBank(AF284811)的核骨酸同源性达99.9%,氨基酸同源性达100%.菌落PCR显示外源基因已整合人酵母GS115菌株中.结论:成功地克隆了MAP30全长基因,并构建了含MAP30基因的重组毕赤酵母表达载体,并获得了整合菌株,为下一步研究奠定了基础.
目的:從苦瓜中剋隆MAYO全長基因,併將該基因連接至錶達載體pPIC9中,建立酵母菌落PCR篩選方法.方法採用改良SDS法從苦瓜錶皮中提取基因組DNA,設計特異件的引物,通過PCR技術擴增齣全長861bp的MAP30基因.該基因經Xho Ⅰ和EcoR Ⅰ雙酶切,連接至畢赤酵母錶達載體pPIC9中.重組載體轉化GS115菌株,運用菌落PCR鑒定重組菌株.結果:基因測序錶明,該基因已成功插入酵母錶達載體pPIC9α-factor分泌信號下遊,同源性分析錶明該基因與GeneBank(AF284811)的覈骨痠同源性達99.9%,氨基痠同源性達100%.菌落PCR顯示外源基因已整閤人酵母GS115菌株中.結論:成功地剋隆瞭MAP30全長基因,併構建瞭含MAP30基因的重組畢赤酵母錶達載體,併穫得瞭整閤菌株,為下一步研究奠定瞭基礎.
목적:종고과중극륭MAYO전장기인,병장해기인련접지표체재체pPIC9중,건립효모균락PCR사선방법.방법채용개량SDS법종고과표피중제취기인조DNA,설계특이건적인물,통과PCR기술확증출전장861bp적MAP30기인.해기인경Xho Ⅰ화EcoR Ⅰ쌍매절,련접지필적효모표체재체pPIC9중.중조재체전화GS115균주,운용균락PCR감정중조균주.결과:기인측서표명,해기인이성공삽입효모표체재체pPIC9α-factor분비신호하유,동원성분석표명해기인여GeneBank(AF284811)적핵골산동원성체99.9%,안기산동원성체100%.균락PCR현시외원기인이정합인효모GS115균주중.결론:성공지극륭료MAP30전장기인,병구건료함MAP30기인적중조필적효모표체재체,병획득료정합균주,위하일보연구전정료기출.
Objective:MAP30 gene cloning by PCR from total DNA of Momordica charantia L, the construction of recombinant vector Ppic9 - MAP30, and establishing the rapid screening method of recombinant GS115 strain.Method :The total genome DNA was extracted by modified SDS method from Momordica charantia L With designed specific primers, MAP30(Momordica anti - HIV protein of 30 Kd) gene was amplified by PCR.The PCR product was digested by Xho Ⅰ and EcoR Ⅰ ,then ligated to Ppic9 vector.Then the Ppic9 - MAP30 vector was transformed into GS115 strain, and the positive elones were screened by colony PCR.Result:Mter DNA sequencing, MAP30 gene was inserted into Ppic9, Nueleotide acid sequence and amino acid sequence showed 99.88% and 100% homology to GeneBand (AF284811) respectively.Four positive strains were identified by colony PCR.Condusion: MAP30 gene was suecessfuUy cloned into Ppic9 vector, and target gene was also integrated into chromosome of GS115 strain.