Vitamin required for post-translational modification of clotting factors:

Vitamin KIt is a group of structurally similar, fat-soluble vitamins that the human body needs for post-translational modification of ceain proteins required for blood coagulation, and in metabolic pathways in bone and other tissue.They are 2-methyl-1,4-naphthoquinone (3-)derivatives.This group of vitamins includes two natural vitamers: vitamin K1 and vitamin K2.