CTLA-4 Recombinant Protein

C-6 His tag

Lyophilized protein should be stored at -20˚ C, though stable at room temperature for 3 weeks.
Reconstituted protein solution can be stored at 4-7˚ C for 2-7 days.
Aliquots of reconstituted samples are stable at -20˚ C for 3 months.

Mouse Cytotoxic Tlymphocyte 4(CTLA-4, CD152), is a type I transmembrane T cell inhibitory molecule. Within the ECD, Mouse CTLA-4 shares 68% aa sequence identity with human. CTLA4 is similar to the T cell costimulatory protein CD28 since both of the molecules bind to CD80 and CD86 on antigen-presenting cells. CTLA4 transmits an inhibitory signal to T cells, whereas CD28 transmits a stimulatory signal. Intracellular CTLA4 is also found inregulatory T cells and may play an important role in their functions. T cell activation through the T cell receptor and CD28 leads to increased expression of CTLA4. Genetic variations of CTLA4 have been associated with susceptibility to systemic lupus erythematosus(SLE), Gravesdisease(GRD), Celiac disease type3(CELIAC3) and Hepatitis B virus infection(HBVinfection).

Lyophilized from a 0.2 um filtered solution of PBS, pH7.4. It is not recommended to reconstitute to a concentration less than 100 ug/ml.

cytotoxic T-lymphocyte-associated protein 4

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Mouse