CD81 Antibody, anti-human, APC, REAfinity™

01MT04219

Clone REA513 recognizes the human CD81 antigen, a multi-pass membrane protein also known as TAPA-1. It is a member of the tetraspanin family including, for example, CD9, CD37, CD53, CD63, CD82, and CD151. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth, and motility. The 26 kDa cell surface protein is involved in adhesion, activation, proliferation, and differentiation of B cells, T cells, and other cells. On B cells CD81 is part of a complex with CD21, CD19, and Leu13. Similarly on T cells CD81 associates with CD4 and