GGCX Proteins and Enzymes

Gamma-glutamyl carboxylase (GGCX) mediates the vitamin K-dependent carboxylation of glutamate residues to calcium binding gamma-carboxyglutamate (Gla) residues with the concomitant conversion of the reduced hydroquinone form of vitamin K to vitamin K epoxide. GGCX accomplishes the posttranslational modification required for the activity of all of the vitamin K-dependent proteins. These include some of the blood coagulation and anticoagulation proteins as well as bone gamma-carboxyglutamic acid (Gla) protein (BGLAP) and bone matrix protein (MGP)