資源描述:
《PK-15細(xì)胞酵母雙雜交三框cDNA文庫構(gòu)建及鑒定.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、南方農(nóng)業(yè)學(xué)報JournalofSouthernAgriculture2016,47(5):726-730ISSN2095-1191;CODENNNXAABhttp://www.r血y)【b.cornDOI:10.39690:issn.2095-1191.2016.05.726PK一15細(xì)胞酵母雙雜交三框,eDNA文庫構(gòu)建及鑒定李殉,陳思宇,胡傳活,王曉曄’(廣西大學(xué)動物科學(xué)技術(shù)學(xué)院,南寧530005)摘要:【目的】構(gòu)建PK-15細(xì)胞酵母雙雜交三框eDNA文庫,為深入研究豬偽狂犬病病毒(PRv)與宿主細(xì)胞間的相互作用機(jī)制打下基礎(chǔ)6【方法】提Ii3LPK-15細(xì)胞
2、總RNA,采用SMART和LD.PcR合成全長的雙鏈cDNA(dscDNA),并對其進(jìn)行均一化和SfiI酶切處理。處理后的dscDNA分另II連接3種閱讀框pGADT7.Sfi威體,將連接產(chǎn)物轉(zhuǎn)化至大腸桿菌BH5a構(gòu)建三框eDNA初級文庫,取三框eDNA初級文庫進(jìn)行混合擴(kuò)增,通過滴度測定和PCR鑒定其庫容量和基因重組率,最后收集文庫細(xì)菌提取文庫質(zhì)粒。【結(jié)果】3種讀碼框eDNA文庫的庫容量分別為3.0×106.2.OxlOe和2.0×106CFU,文庫實際擴(kuò)增基數(shù)>150萬CFU;一號和三號讀碼框的基因重組率均為100%,二號讀碼框的基因重組率大于93%。eDN
3、A文庫外源基因插入片段長度在500---3000bp。eDNA文庫質(zhì)粒濃度約1.0mg/mL,質(zhì)粒收獲量約3.0mg?!窘Y(jié)論】構(gòu)建的PK.15細(xì)胞酵母雙雜交三框cDNAj(庫具有較高的重組率和庫容量,符合酵母雙雜交篩選要求,可用于研究PRV與PK.15細(xì)胞問的相互作用機(jī)制。關(guān)鍵詞:PK.15細(xì)胞;酵母雙雜交;三框cDNA文庫;均一化;豬偽狂犬病病毒(PRV)中圖分類號:S852.65文獻(xiàn)標(biāo)志碼:A文章編號:2095—1191(2016)05—0726—05U0nStrUcttonandldentlnCatlonJ11』·‘1●1■●mJ●cDNAlibrary
4、ofyeasttwo—hybridthree-frameofPK-15cellsLIXun,CHENSi—yu,HUChuan-huo,WANGXiao—ye+(CollegeofAnimalScienceandTechnology,GuangxiUniversity,Nanning530005,China)Abstract:【Objective】Yeasttwo—hybridthree—frameeDNAlibraryofPK一15cellswasconstructed,inordertolaythefoundationforinvestigatingint
5、eractionmechanismbetweenpseudorabiesvirus(PRV)anditshostcells.【MethodlTotalRNAwasextractedfromPK一15cells,andt}lefull—lengthdouble—strandeDNA(dseDNA)WassynthesizedusingSMARTandLD—pCR。whichwasligatedtothree—frameexpressionvectorpGADT7一S/7IafternomalizationandS療Idigestion.respectively.
6、TheligationproductwastransformedintoEscheffchiacolitoconstructprimarythree—frameexpressioneDNAlibrary.ThreeprimarycDNAlibrariesweremixedandamplified.Thecapacityandrecombinationrateoflibrarywerede.terminedbytitertestandPCRidentification.Finally,allbacteriawerecollectedtoextractlibrar
7、yplasmid.【Result】r11lecapacitiesofthreereadingframelibrarieswere3.0×106.2.0×106and2.0×106CFU.respectively.Thepracticalamplifica—tionbaseoflibrary.wasmorethan1.5millionCFU.Therecombinationratesofthreeflamelibrarieswere100%.morethan93%and100%.respectively.’nleinsertedfragmentofexogeno
8、usgenewas500-3000bp