B lymphocyte-specific MB1 protein, B-cell antigen receptor complex-associated protein alpha chain, CD 79a, CD79a antigen (immunoglobulin-associated alpha), CD79A antigen, CD79a molecule, immunoglobulin-associated alpha, CD79A_HUMAN, Ig alpha, Ig-alpha, I
The B lymphocyte antigen receptor is a multimeric complex that includes the antigen-specific component, surface immunoglobulin (Ig). Surface Ig non-covalently associates with two other proteins, Ig-alpha and Ig-beta, which are necessary for expression an