資源描述:
《北京油雞cdna文庫(kù)的構(gòu)建及il-18基因克隆與表達(dá)地地研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、摘要構(gòu)建北京油雞cDNA文庫(kù)對(duì)于北京油雞遺傳資源的保護(hù)以及其基因功能的研究具有重要意義。本實(shí)驗(yàn)取北京油雞肝臟組織,提取總RNA,運(yùn)用SMART刊技術(shù)構(gòu)建了北京油雞肝臟組織cDNA文庫(kù),所構(gòu)建的eDNA文庫(kù)未擴(kuò)增文庫(kù)滴度為2.01x106pfu/mL,擴(kuò)增文庫(kù)滴度為1.17×10mpfu/mL,重組率為93.8%,平均插入片段大小約為1.0kb。本研究的實(shí)施不僅對(duì)于雞基因結(jié)構(gòu)與功能研究具有重要意義,而且對(duì)于北京油雞基因資源的保存具有重要意義。本實(shí)驗(yàn)通過(guò)組織塊貼壁培養(yǎng)法,成功構(gòu)建了多浪羊的成纖維細(xì)胞系,并對(duì)其進(jìn)行了多項(xiàng)生物學(xué)特性檢測(cè)。檢
2、測(cè)結(jié)果表明,細(xì)胞系的各項(xiàng)指標(biāo)均達(dá)到美國(guó)典型培養(yǎng)物中心刀TCC(AmericantypeCultureCollection)細(xì)胞系鑒定標(biāo)準(zhǔn),為研究外源基因在成纖維細(xì)胞中的表達(dá)與調(diào)控提供了優(yōu)質(zhì)的靶細(xì)胞。本實(shí)驗(yàn)采用BamHI與XhoT雙酶切法建立北京油雞pGEX-4T-1-IL一18原核表達(dá)載體,并在BL21菌中成功表達(dá)。采用Sa]I與BamHI雙酶切法建立北京油雞pEGFP—N3一IL—18真核表達(dá)載體,并在浪羊成紅維細(xì)胞中成功表達(dá)。關(guān)鍵詞:北京涫雞;cDNA文庫(kù):IL-18:基因克??;表達(dá)ConstructionofeDNAlibra
3、ryandIL·-18genecloningandexpressionofBeijingFattyChicken^bstractTheeDNAlibraryofBeijingFattyChickenhasgreatsignificancehotonlyforitsprotectionofgeneticresouiv.燃butalsoforthereaseachofgenefunction.Inthisstudy,thetotalRNAwereextractedfromtheliver矗愛(ài);u陀ofBeijingFattyChicke
4、n,andthelivertissureeDNAlibraryofBeijingFattyChickenhadbeenconstructedbyusingSMARTTMtechnique.neresultsshowthatthetiterofunamplifiedcDNAlibraryis2.01x106pfu·mL一,thetiterofamplifiedlibraryis1.17x1010pfu·mL"l,therateofrecombinantisabove93.8%,theaveragesizeofthefragmentsi
5、s1.0kb.ThisstudyisnotonlyimportantforthestructureandfunctionresearchonChickengenes,butalsoimportantfortheprotectionofgenetici'esourcesforBeijingFattyChicken.ThisstudysuccessfullyestablishedthetargetcelllineofDuolangSheepthroughdirectadherentculturemetheodsandalsosucces
6、sfullyconductedthevariouskindsofexperimentsonthebiologicalcharacteristicsofdetection-TheresultsshowthatthequalityofthecelllinemetthequalityrequirementsoftheATCC(American13哩,eCultureCollection),indicatethatthecellswe陀welltargetcellsforgene懿pression.Inthisstudy,wealsocon
7、structedBeijingFattyChicken'sProkaryoticexpressionvectorpGEX4T—l·IL-18byadoringBamHIandXhoImethodofdoubleIes缸'ictionenzymeandwhicharealsoexpressedinBL21bacteria,wealso咖sl田哪刪BeijingFattyChicken'seukaryotieexpressionvectorpEGFP-N3一IL-18byadoptingSalIandBamHImethodofdoubl
8、erestrictionenzymeandexpressionintargetceils.Keywords:BeijmgFattyChicken;eDNAlibrary;lol8;gemcloning;expressionDirett