- vitamin K biosynthetic process
The chemical reactions and pathways resulting in the formation of any of the forms of vitamin K, quinone-derived vitamins which are involved in the synthesis of blood-clotting factors in mammals.
- K antigen biosynthetic process
The chemical reactions and pathways resulting in the formation of a K antigen, a capsular polysaccharide antigen carried on the surface of bacterial capsules that masks somatic (O) antigens.
- vitamin K catabolic process
The chemical reactions and pathways resulting in the breakdown of any of the forms of vitamin K, quinone-derived vitamins which are involved in the synthesis of blood-clotting factors in mammals.
- vitamin K metabolic process
The chemical reactions and pathways involving any of the forms of vitamin K, quinone-derived vitamins which are involved in the synthesis of blood-clotting factors in mammals. Vitamin K substances share a methylated naphthoquinone ring structure and vary in the aliphatic side chains attached to the molecule.
- K antigen metabolic process
The chemical reactions and pathways involving K antigen, a capsular polysaccharide antigen carried on the surface of bacterial capsules that masks somatic (O) antigens.
- obsolete cathepsin K activity
OBSOLETE. Catalysis of the hydrolysis of peptide bonds. Has a broad proteolytic activity. With small-molecule substrates and inhibitors, the major determinant of specificity is P2, which is preferably Leu, Met > Phe, and not Arg.
- renal potassium excretion
The elimination of potassium ions from peritubular capillaries (or surrounding hemolymph in invertebrates) into the renal tubules to be incorporated subsequently into the urine.
- response to vitamin K
Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a vitamin K stimulus.