
RandominsertionofR6KoriginforrescueofflankingDNAorplasmids
- InsertR6KoriginrandomlyintoanyDNAsequenceinvitro
- Skipprimerwalking-simplifySangersequencingoflargeDNAinserts
- RescueclonesinE.colihostexpressingthepirgeneproduct
- MinimizeinsertionbiaswiththehyperactiveTn5system,knownforhighestlevelofrandomness
Applications
- "Rescue"ofplasmidsoranyothercircularizedDNA(e.g.,mitochondrialDNA)thatwouldnototherwisereplicateinE.colibecausetheylackarecognizableoriginofreplicationand/oraselectableMarker.
- PreparationofDNAsequencingtemplatesfromtransposoninsertioncloneswithoutprimerwalkingoradditionalsubcloning.
- Creationofalibraryofrandomgeneknockoutsinvitrotofacilitategeneticanalysisofplasmid-encodedgenes.
TheEZ-Tn5™<R6Kγori/KAN-2>InsertionKit*facilitatesthesequencingandgeneticanalysisofplasmidsoranyothercircularizedDNAthatwouldnototherwisereplicateinE.coli.1,2ThekitisbasedupontheEZ-Tn5™<R6Kγori/KAN-2>TransposonwhichcarriestheE.coliR6Kγconditionaloriginofreplication(R6Kγori)andakanamycinresistancemarker.Asimple,one-step,2-hourinvitroreactionrandomlyinsertsthetransposonintothetargetDNA.ThenanaliquotofthereactionisusedtotransformanE.colihostexpressingthepirgeneproduct,whichisrequiredforreplicationfromtheR6Kγori.Insertionclonesareselectedonkanamycinplatesandcanbesequencedbidirectionallyusingtheprovidedprimersthatarehomologoustotheendsofthetransposon.ClonescanbemaintainedinEpicentre'sTransforMax™EC100D™pir+orTransforMax™EC100D™pir-116strains.3
![]() | Figure1.AplasmidcontainingtheEZ-Tn5™<R6Kγori/KAN-2>TransposoncanbemaintainedinTransforMax™EC100D™pir+cellsat~15copiespercell(Lanes1-4)orTransforMax™EC100D™pir-116cellsat~250copiespercell(Lanes5-8).ColoniesfromrandomlychosencloneswereprocessedusingtheColonyFast-Screen™Kit.A5-microliteraliquotoflysatewasloadedperlane.M,supercoiledDNAladder. |
References
- Jendrisak,J.etal.(2002)EpicentreForum9(1),14.
- Yoon,Y.andKoob,M.(2003)EpicentreForum10(2),10.
- Metcalf,W.W.etal.(1994)Gene138,1.
*Coveredbyissuedand/orpendingpatents,exclusivelylicensedorassignedtoEpicentre®(anIllumina®Company).
ORDERINFORMATION
EZ-Tn5™Transposase,EZ-Tn5™<R6Kyori/KAN-2>Transposon,EZ-Tn5™10XReactionBuffer,EZ-Tn5™10XStopSolution,ForwardandReversePrimers,ControlTargetDNA,SterileWater.ebiomall.com






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而且直接使用自制的PEI非常便宜,在293上远比商品化的脂质体要好。
另外,如果你们实验室确实钱多,不怕花钱,建议你取用Promega的FugenHD,那个转染效率比脂质体更好,而且毒性小,至于价格。。。。。。。。。。。也更高。。。。。。。。。
另外,你说漂浮的细胞有表到GFP,那个不一定是真的GFP,很多时候
内毒素是革兰氏阴性菌细胞壁(cellwall)上的特有成分,主要是脂多糖中的类脂A,在细菌被裂解时被释放出来,由于其化学结构和特性,在质粒的纯化过程中很容易混入质粒DNA一同提取出来。内毒素的存在会严重的影响质粒转染细胞的效率,此外会激活造血细胞(如B细胞、巨噬细胞等)的非特异免疫反应,造成实验的假阳性,所以转染级质粒的提取纯化必须去除内毒素。
有战友对比过罗氏X-tremeGENEDNATransfectionReagent和lipofectamine3000的优劣吗?求解答
EntransterTM-R4000是英格恩生物(EngreenBiosystem)最新研发合成的针对siRNA、microRNA、mimic、inhibitor、mRNA和shRNA等RNA的转染试剂。EntransterTM-R4000不仅可以转染小RNA,而且针对mRNA等长链RNA优化。由于纳米技术的应用,EntransterTM-R4000能做到高达90%的转染效率和60-90%的沉默效率,对难转染细胞和原代细胞也非常适用。
先附上一篇英格恩生物RNA转染试剂转染mir-346至Jurkat细胞研究甲状腺的文献,以供参考。
RNA转染试剂转染Mir-346至Jurkat细胞研究甲状腺.pdf(5947.72k)


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