AGM;B-Cell-Specific Glycoprotein B;CD79B;AGM6;B29;IGB;B-Cell Antigen Receptor Complex-Associated Protein Beta Chain;B-Cell-Specific Glycoprotein B29;Ig-Beta;Immunoglobulin-Associated B29 Protein; B29;Ig&beta,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 and function of the B-cell antigen receptor. This gene encodes the Ig-beta protein of the B-cell antigen component. Alternatively spliced transcript variants encoding different isoforms have been described.