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sirna導(dǎo)入細(xì)胞的策略-資料下載頁(yè)

2024-10-06 01:19本頁(yè)面
  

【正文】 物基因組中 。⑵基因序列特異性 。⑶共阻遏效應(yīng)載體中兩條鏈表達(dá)強(qiáng)度有差異 ,如果選用兩個(gè)強(qiáng)度相等的啟動(dòng)子則會(huì)產(chǎn)生共阻遏效應(yīng) ,影響dsRNA的干涉效應(yīng) 。因此必須選用強(qiáng)度不同的兩種強(qiáng)啟動(dòng)子才能產(chǎn)生強(qiáng)的dsRNA作用 。⑷組織對(duì)dsRNA耐受性不同[7] 參考文獻(xiàn):1,Elbashir SM,Harbotrh J,Lendeckel W ,et al .Duplexes of 21 nuclecbied RNAs mediate RNA interference incultured mammalian cells [J]Nature,2001,411(494 498).2,Paddison PJ, Caudy AA,Bemstein E,et al . Short hairpin RNAs(shRNAs) induce sequence specific silencing in mammalian cells [J]. Genes Dev,2002,16:948958.3,Yu JY DeRuiter L Tumer DL .RNA interference by expression of ghoriinterfering RNAs and hairpin RNAs in mammalian cells [J].Proc Natl Acad Sci USA ,2002, 99:6 0 47 6 0 524,Timmons L ,Fire A. fire ference by ingested dsRNA[L]Nature ,1988,3:958545,kennerdell JR ,Carthew RW .Use of dsRNA mediated genetic interference to demonstrate that frizzledand frizzled 2 actin the wingless , 1 998, 95(7):1 0 1 7~ 1 0 2 66,Tavernarakis N , Wang SL,Dorovkov M,et and inducible genetic interference by double stranded RNA encoded by transgenes [J].Nat genet, 2 0 0 0 , 2 4(2 ):1 80~ 1 837,Chuang CF,Meyero witz EM. Specific and heritable genetic interferencebydouble stranded RNA in Arabidopsis thaliana [J]. . 2 0 0 0 , 97:4985~ 4990內(nèi)容總結(jié)(1)siRNA導(dǎo)入細(xì)胞的策略
siRNA導(dǎo)入哺乳動(dòng)物細(xì)胞的策略
RNAi在哺乳動(dòng)物細(xì)胞中通常用于阻斷特定基因的表達(dá)從而研究基因的功能(2)這種改進(jìn)的RNAi技術(shù)與傳統(tǒng)的RNAi技術(shù)相比 ,具有明顯的優(yōu)點(diǎn) :首先轉(zhuǎn)基因可以遺傳給后代 ,有利于突變的分析(3)而植物中RNAi作用穩(wěn)定這一點(diǎn)在其它方法產(chǎn)生的RNAi的生物體內(nèi) (如雙鏈RNA微量注射的動(dòng)物 ,RNA轉(zhuǎn)染的細(xì)胞 )并未體現(xiàn)
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