Description
Transglutaminase 2, also called TGC, TG2 and TGM2, is a 78-kDa, calcium dependent enzyme of the protein-glutamine gamma-glutamyltransferases family. Transglutaminases (TGs) are enzymes that catalyze the crosslinking of proteins by epsilon-gamma glutamyl lysine isopeptide bonds. While the primary structure of TGs are not conserved, they all have the same amino acid sequence at their active sites and their activity is calcium-dependent. Transglutaminase 2 acts as a monomer, is induced by retinoic acid, and appears to be involved in apoptosis. It is the autoantigen implicated in celiac disease