TheHit8aantibodyisspecificforthe32-34kDaalphachainofhumanCD8,knownasCD8aorCD8alpha.CD8acanformahomodimer(CD8alpha-alpha),butismorecommonlyexpressedasaheterodimerwithasecondchainknownasCD8borCD8beta.CD8actsasaco-receptorforantigenrecognitionandsubsequentTcellactivationthatisinitiateduponbindingoftheTcellreceptor(TCR)toantigen-bearingMHCClassImolecules.ThecytoplasmicdomainsofCD8providebindingsitesforthetyrosinekinaselck,facilitatingintracellularsignalingeventsthatleadtoTcellactivation,development,andcytotoxiceffectorfunctions.CD8+cytotoxicTcells(CTLs)playanimportantroleininducingcelldeathoftumorcells,aswellascellsinfectedbyvirus,bacteriaorparasites.
TheHit8aantibodyiswidelyusedasaphenotypicMarkerforCD8oncytotoxicTcells,thymocytes,aswellasoncertaincelltypesthatdonotalsoexpresstheTCR,includingsomeNKcellsandlymphoiddendriticcells.IfusedtogetherwithanalternativeAnti-HumanCD8acloneRPA-T8,theHit8aantibodywillnotblockbindingofRPA-T8toCD8a.
| Name | APCAnti-HumanCD8a(Hit8a) |
|---|---|
| Cat.No. | 20-0089 |
| AlternativeNames | CD8alpha,leu-2a |
| GeneID | 925 |
| Clone | Hit8a |
| Isotype | MouseIgG1,kappa |
| Reactivity | Human |
| CrossReactivity | Chimpanzee,Rhesus |
| Format | APC |
| Applications | FlowCytometry |
| Citations* | CoppietersKT,DottaF,AmirianN,CampbellPD,KayTWH,AtkinsonMA,RoepBOandvonHerrathMG.2012.J.Exp.Med.109:51-60.(insitutetramerstaining/Immunohistochemistry–frozentissue) KumariA,BrendelC,HochlausA,NeubauerA,andBurchertA.2012.Blood.119:530-539.(Flowcytometry) KryczekI,BanerjeeM,ChengP,VatanL,etal.2009.Blood.114:1141–1149.(Immunofluorescencemicroscopy) |
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