IGBP1Immunoglobulin-binding protein 1 is a protein that in humans is encoded by the IGBP1 gene.FunctionThe proliferation and differentiation of B cells is dependent upon a B-cell antigen receptor complex. Binding of antigens to specific B-cell receptors results in a tyrosine phosphorylation reaction through the BCR complex and leads to multiple signal transduction pathways.InteractionsIGBP1 has been shown to interact with PPP4C, PPP6C and PPP2CA.