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Updated Date: Stock Protein updated on 20170725
Research areas: Immunology
Target / Protein: Ctla4
Biologically active: Not Tested
Expression system: E.coli
Species of origin: Mus musculus (Mouse)
Delivery time: 3-7 business days
Uniprot ID: P09793
AA Sequence: EAIQVTQPSVVLASSHGVASFPCEYSPSHNTDEVRVTVLRQTNDQMTEVCATTFTEKNTVGFLDYPFCSGTFNESRVNLTIQGLRAVDTGLYLCKVELMYPPPYFVGMGNGTQIYVIDPEPCPDSD
Tag info: N-terminal 10xHis-SUMO-tagged and C-terminal Myc-tagged
Expression Region: 36-161aa
Protein length: Extracellular Domain
MW: 33.9 kDa
Alternative Name(s): Cytotoxic T-lymphocyte-associated antigen 4
Relevance: Inhibitory receptor acting as a major negative regulator of T-cell responses. The affinity of CTLA4 for its natural B7 family ligands, CD80 and CD86, is considerably stronger than the affinity of their cognate stimulatory coreceptor CD28
Reference: "CTLA-4 and CD28 activated lymphocyte molecules are closely related in both mouse and human as to sequence, message expression, gene structure, and chromosomal location." Harper K., Balzano C., Rouvier E., Mattei M.-G., Luciani M.-F., Golstein P. J. Immunol. 147:1037-1044(1991)
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.