CD5 (also designated Lyt-1) has been identified as a transmembrane glycoprotein that is expressed on 70% of normal peripheral blood lymphocytes and on virtually all T lymphocytes in thymus and peripheral blood. Activation of T cells through the T cell receptor (TCR) results in tyrosine phosphorylation of CD5, and the absence of CD5 renders T cells hyper-responsive to TCR-mediated activation. CD5 associates with the TCR/ CD3-z chain and with the Src family kinase Lck p56. In vitro studies have shown a 10- to 15-fold increase in the kinase activity of Lck bound to CD5. The B cell antigen, CD72, serves as a receptor for CD5. The consequence of CD5 binding to its cognate receptor is still in question and likely plays a role in thymic selection.蛋白别名为：CD5; LEU1; T-cell surface glycoprotein CD5; Lymphocyte antigen T1/Leu-1; CD antigen CD5;基因ID为：921；蛋白质ID:P06127
应用类型
WB，ELISA补充：最优的抗体稀释比例需要基于客户实验进行优化.建议的起始稀释比例如下: WB: 1:500-1:2000, ELISA: 1:20000. Not yet tested in other applications.
免疫原
合成多肽：human CD5 around the non-phosphorylation site of Y453.
