CST, 19979S, CD5 Antibody

Polyclonal Antibody for studying CD5 mouse. Validated for Western Blotting. Highly specific and rigorously validated in-house, CD5 Antibody (CST #19979) is ready to ship. Product Usage Information Western Blotting: 1:1000 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody. Protocol Available protocols: Western Blotting Specificity / Sensitivity CD5 Antibody recognizes endogenous levels of total CD5 protein. Species Reactivity: Mouse Source / Purification Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Phe94 of mouse CD5 protein. Antibodies are purified by peptide affinity chromatography. Background CD5 is a type-I transmembrane protein belonging to the scavenger receptor cysteine-rich (SRCR) family, characterized by the presence of at least one SRCR domain of 90-110 amino acids. CD5 is expressed by all mature T cells, the B-1a subset of mature B cells, and some leukemic B cells. Its expression is increased in regulatory T and B cells (Tregs/Bregs). Anergic T and B cells also have elevated CD5 expression. Elevated levels of CD5 are also found in many autoimmune disorders (1-3). CD5 is associated with the T cell receptor (TCR) and negatively modulates T cell activation and differentiation. CD5 expression on the tumor infiltrating T lymphocytes is inversely correlated with their antitumor activity (4-6). Recently, it was reported that CD5 directly binds to IL6 and can mediate downstream signaling. CD5+ B cells promote tumor growth in animal models (7). Reagents targeting CD5 have been actively pursued as therapeutic interventions for cancer and other conditions (8,9). Alternate Names Cd5; CD5 antigen; Ly-; Ly-1; Ly-12; Ly-A; Lymphocyte antigen 1; Lyt-; Lyt-1; T-cell surface glycoprotein CD5 Specification REACTIVITY: M SENSITIVITY: Endogenous MW (kDa): 70 SOURCE: Rabbit