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当前位置: 首页 > 产品中心 > Functional_antibody > Biosensis/兔抗人血影蛋白多克隆抗体,αII:全血清/R-1694-100/100µL
商品详细Biosensis/兔抗人血影蛋白多克隆抗体,αII:全血清/R-1694-100/100µL
Biosensis/兔抗人血影蛋白多克隆抗体,αII:全血清/R-1694-100/100µL
Biosensis/兔抗人血影蛋白多克隆抗体,αII:全血清/R-1694-100/100µL
商品编号: R-1694-100
品牌: Biosensis inc
市场价: ¥5940.00
美元价: 3564.00
产地: 美国(厂家直采)
公司:
产品分类: 功能性抗体
公司分类: Functional_antibody
联系Q Q: 3392242852
电话号码: 4000-520-616
电子邮箱: info@ebiomall.com
商品介绍
DescriptionThespectrinfamilyofproteinswereoriginallydiscoveredasmajorcomponentsofthesubmembraneousCytoskeletonofosmoticallylysedredbloodcells(1).Thelysedbloodcellscouldbeseenasclearredbloodcellshapedobjectsinthelightmicroscopeandwerereferredtoasredcell"ghosts".Themajorproteinsoftheseghostsprovedtobeactin,ankyrin,band4.1andseveralotherproteins,includingtwomajorbandsrunningatabout240kDaand260kDaonSDS-PAGEgels.Thispairofbandswasnamed"spectrin"sincetheywerediscoveredintheseredbloodcellghosts(1).Laterworkshowedthatsimilarhighmolecularbandswereseeninmembranepreparationsfromothereukaryoticcelltypes.WorkbyLevineandWillarddescribedapairofabout~240-260kDamolecularweightbandswhichweretransportedattheslowestratealongmammalianaxons(2).Theynamedtheseproteins"fodrin"asantibodystudiesshowedthattheywerelocalizedinthesheathundertheaxonalmembrane,butnotinthecoreoftheaxon(2;fodrosisGreekforsheath).Subsequentlyfodrinwasfoundtobeamemberofthespectrinfamilyofproteins,andthespectrinnomenclatureisnownormallyused(3).Spectrinsformtetramersoftwoalphaandtwobetasubunits,withthealphacorrespondingtothelowermolecularweight~240kDabandandthebetacorrespondingtothe~260kDaorinsomecasemuchlargerband.Mostspectrintetramersareabout0.2micronsor200nmlong,andeachalphaandbetasubunithasacelltypespecificexpressionpattern.Thebasicstructureofeachspectrinsubunitisthespectrinrepeat,whichisasequenceofabout110aminoacidswhichdefinesacompactdomaincontainthreecloselypackedalpha-helices.Eachspectrinsubunitcontainsmultiplecopiesofthisrepeat,with20ineachofthealphasubunits.ThebetaI-IVsubunitseachcontain17spectrinrepeats,whilethebetaVsubunit,alsoknownasbeta-heavyspectrin,contains30oftheserepeats.Thevarioussubunitsalsocontainseveralotherkindsoffunctionaldomain,allowingthespectrintetramertointeractwithavarietyofprotein,ionicandlipidtargets.Thealpha-subunitseachcontainonecalmodulinlikecalciumbindingregionandoneSrc-homology3(SH3)domain,anabundantdomaininvolvedinspecificprotein-proteininteractions.ThebetasubunitsallhaveaN-terminalactinbindingdomainandmayalsohaveoneSH3domainandonepleckstrinhomologydomain,amultifunctionaltypeofbindingdomainwhichinbetaIspectrinatleastbindsthemembranelipidPIP2(5).Spectrinsarebelievedtohaveafunctioningivingmechanicalstrengthtotheplasmamembranesincethetetramersassociatewitheachothertoformadensesubmembraneousgeodesicmeshwork(3).Theyalsobindavarietyofothermembraneproteinsandmembranelipids,andtheproteinstheybindtoarethereforethemselveslocalizedinthemembrane.Diseasesmaybeassociatedwithdefectsinoneorotherofthespectrinsubunits(6).Forexample,someformsofhereditaryspherocytosis,thepresenceofsphericalredbloodcellswhicharepronetolysis,canbetracedtomutationsinsomeofthespectrinsubunits(7).Thealpha-IIsubunitiswidelyexpressedintissuesbut,inthenervoussystem,isfoundpredominantlyinneurons.Theantibodycanthereforebeusedtoidentifyneuronsandfragmentsderivedfromneuronalmembranesincellsintissuecultureandinsectionedmaterial.
BatchNo.Seeviallabel
Unitsize100µL
AntigenTheantibodywasraisedagainstamixoffiverecombinantconstructscontainingtheentireC-terminalregionofhumanalpha-IIspectrin(aminoacids676-2,400).
AntibodyTypePolyclonal
IsotypeIgG
AccessionQ13813SPTAN1_HUMAN
ProducedinRabbit
PurityWholeserum.
ApplicationsWesternBlotting(WB)andImmunocytochemistry(IC).SuggesteddilutionforWBis1:5,000-10,000and1:500-1,000forIC.Biosensisrecommendsoptimaldilutions/concentrationsshouldbedeterminedbytheenduser.
SpecificityTheantibodyreactswitha240kDabandbyWesternblotonmousesciaticnerveextract.Minorbandsbelowmaybeseenandthislikelyrepresentsinvivoproteolyticfragmentsofalpha-IIspectrin.Ithasalsobeenusedsuccessfullyforimmunocytochemistry.
SpeciesAgainstHuman.Otherspeciesnotyettested.
FormLyophilised.
ReconstitutionReconstitutewith100µLsterile-filtered,ultrapurewater.Centrifugebrieflytoremoveanyinsolublematerial.
StorageStorelyophilised,unopenedvialat2-8°Corlower.Afterreconstitution,preparealiquotsandstoreat-20°Cto-80°CforahigherstABIlity.Avoidfreeze-thawcycles.
ExpiryDate12monthsafterpurchase(unopenedvial).
GeneralReferences1.MarchesiVT&SteersEJr.Selectivesolubilizationofaproteincomponentoftheredcellmembrane.Science159:203-4(1968).
2.LevineJ&WillardM.Fodrin:axonallytransportedpolypeptidesassociatedwiththeinternalperipheryofmanycells.JCellBiol.90:631-42(1981).
3.BennettV&BainesAJ.Spectrinandankyrin-basedpathways:metazoaninventionsforintegratingcellsintotissues.PhysiolRev.81:1353-92(2001).
4.Djinovic-CarugoK,GautelM,YlänneJ&YoungP.Thespectrinrepeat:astructuralplatformforcytoskeletalproteinassemblies.FEBSLett.513:119-23(2002).
5.Wang,DSandShawG.TheassociationoftheC-terminalregionofbetaIsigmaIIspectrintobrainmembranesismediatedbyaPHdomain,doesnotrequiremembraneproteins,andcoincideswithainositol-1,4,5triphosphatebindingsite.BBRC217:608-15(1995).
6.BennettV&HealyJ.Organizingthefluidmembranebilayer:diseaseslinkedtospectrinandankyrin.TrendsMolMed14:28-36(2008).7.EberS&LuxSE.Hereditaryspherocytosis--defectsinproteinsthatconnectthemembraneskeletontothelipidbilayer.SeminHematol41:118-41(2004).
品牌介绍
Biosensis是一家由生命科学家和商业团队组成的公司,致力于为全球学术界和工业界的研究人员提供支持。该团队在基础和应用生命科学研究方面拥有超过100年的经验,并在生命科学研究和诊断市场的生命科学抗体,试剂和试剂盒的商业化方面拥有50多年的经验。
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