>Several Other Sizes Are Also Available. Please Inquire. Default Size: 200ugUpdated Date: Stock Protein updated on 20170405Research areas: ImmunologyTarget / Protein: CD8ABiologically active: Not TestedExpression system: YeastSpecies of origin: Homo sapiens (Human)Delivery time: 3-7 business daysUniprot ID: P01732AA Sequence: SQFRVSPLDRTWNLGETVELKCQVLLSNPTSGCSWLFQPRGAAASPTFLLYLSQNKPKAAEGLDTQRFSGKRLGDTFVLTLSDFRRENEGYYFCSALSNSIMYFSHFVPVFLPAKPTTTPAPRPPTPAPTIASQPLSLRPEACRPAAGGAVHTRGLDFACDTag info: N-terminal 6xHis-taggedExpression Region: 22-182aaProtein length: Extracellular DomainMW: 19.6 kDaAlternative Name(s): T-lymphocyte differentiation antigen T8/Leu-2 CD_antigen: CD8aRelevance: Identifies cytotoxic/suppressor T-cells that interact with MHC class I bearing targets. CD8 is thought to play a role in the process of T-cell mediated killing. CD8 alpha chains binds to class I MHC molecules alpha-3 domains.Reference: "The isolation and sequence of the gene encoding T8: a molecule defining functional classes of T lymphocytes."Littman D.R., Thomas Y., Maddon P.J., Chess L., Axel R.Cell 40:237-246(1985)Purity: Greater than 90% as determined by SDS-PAGE.Storage: The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself. Generally, the shelf life of liquid form is 6 months at -20℃/-80℃. The shelf life of lyophilized form is 12 months at -20℃/-80℃.Notes: Repeated freezing and thawing is not recommended. Store working aliquots at 4℃ for up to one week.