Vitamin K-Dependent Clotting Factors, Combined Deficiency of, 1, also known as vitamin k-dependent clotting factors, combined deficiency of, type 1, is related to vitamin k-dependent clotting factors, combined deficiency of, 2 and hereditary combined deficiency of vitamin k-dependent clotting factors. An important gene associated with Vitamin K-Dependent Clotting Factors, Combined Deficiency of, 1 is GGCX (Gamma-Glutamyl Carboxylase), and among its related pathways/superpathways are Gamma carboxylation, hypusinylation, hydroxylation, and arylsulfatase activation and Vitamin K metabolism and activation of dependent proteins. Affiliated tissues include liver and bone marrow, and related phenotypes are prolonged prothrombin time and reduced factor x activity