ProductName:pSF-CMV-NH2-V5-EKT1
ProductCode:OG327
Size(bp):4313bp
BacterialAntibioticSelection:KanR
OriginandCompatibility:pUChighcopyderivedfrompBR322
BacterialCopyNumber:500-700percell
Promoter:Cytomegalovirus(CMV)immediateearlypromoter
ThisvectoraddsaV5epitopetagtotheN-terminusofaproteinthatisencodedwithinthemultiplecloningsite.ThistagallowsthedetectionandpurificationofataggedproteinusingantibodiesraisedagainstV5.TheV5tagcodingsequenceisGKPIPNPLLGLDST.Thereisanenterokinase(EKT)cleavagesite(DDDDK)immediatelydownstreamoftheV5tagthatcanbeusedtoremovetheV5tagfromapurifiedprotein.Itcleavesafterthelysineresidue.
PromoterExpressionLevel:ThisplasmidcontainsthemammalianCMVpromotertodrivegeneexpression.WehavetestedallofourmammalianpromotersinarangeofcelltypesandCMVisconsistentlythestrongestinthosewehavestudied.HowevertherearemanyreportsoftheCMVpromoterdemonstratingsilencingbymethylationinlong-termculture.ForthisreasonwestockarangeofotherpromotersthatarecompatIBLewiththisplasmidandareavailableonrequest.
Thisplasmidcontainsthreealternativetranscriptionterminatorsformammalianbacterialandbacteriophage(T7)expression.Thismeansthatonlythepromoterneedstobechangedtoaltertheexpressionsystemyouareusing.Wesellmultiplepromotersthatcanbeusedineachofthesesystems.Thepresenceofeachterminatordoesnotreduceexpressioninthealternativesystems.
Thisvectorhasbeendesignedtoallowtheadditionofapeptidetagtotheendofaproteinofinterestusingstandardcloningtechniques.
MultipleCloningSiteNotes:ThereisastartcodonintheNcoIsitecanberemovedbydigestionwithKpnIifrequired.TheMCSforgeneinsertionsextendsfromNotItoXbaIhoweverthetagresidesbetweentheNotIandHindIIIsites.ThereareShine-DalgarnosequencesandKOZAKsequencesalignedwiththestartcodonofthepeptidetag.
TheClaItoNheIsiteshaveotherfunctionssuchasaddingC-terminalpeptidetagssecondpromotersorIRESexpressioncomponents.TheBsgIandBseRIrestrictionsitescleavewithinthestopcodonintheXbaIsiteandallowtheretrospectivefusionofC-terminalpeptidetagssequencesifthestopcodonisplacedinthisposition.
ThisproductispartofourSnapFastplasmidrange,formoreinformationontheIntellectualpropertystatusofthisplasmidpleaseclickhere
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