Background：

The protein encoded by this gene belongs to the membrane-associated guanylate kinase (MAGUK) family， a class of proteins that functions as molecular scaffolds for the assembly of multiprotein complexes at specialized regions of the plasma membrane. This protein is also a member of the CARD protein family， which is defined by carrying a characteristic caspase-associated recruitment domain (CARD). This protein has a domain structure similar to that of CARD14 protein. The CARD domains of both proteins have been shown to specifically interact with BCL10， a protein known to function as a positive regulator of cell apoptosis and NF-kappaB activation. When expressed in cells， this protein activated NF-kappaB and induced the phosphorylation of BCL10.