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The chemical reactions and pathways resulting in the formation of any of the menaquinones, any of the quinone-derived compounds synthesized by intestinal bacteria. Structurally, menaquinones consist of a methylated naphthoquinone ring structure and side chains composed of a variable number of unsaturated isoprenoid residues. Menaquinones have vitamin K activity and are known as vitamin K2. The chemical reactions and pathways resulting in the formation of any quinone cofactor, such as menaquinone (vitamin K2), ubiquinone (coenzyme Q) or phylloquinone (vitamin K1). The chemical reactions and pathways involving of any of a diverse group of vitamins that are soluble in organic solvents and relatively insoluble in water. The chemical reactions and pathways resulting in the formation of a vitamin, one of a number of unrelated organic substances that occur in many foods in small amounts and that are necessary in trace amounts for the normal metabolic functioning of the body. The chemical reactions and pathways resulting in the formation of coenzymes, any of various nonprotein organic cofactors that are required, in addition to an enzyme and a substrate, for an enzymatic reaction to proceed. The chemical reactions and pathways involving any of a class of organic compounds that contain the carbonyl group, CO, and in which the carbonyl group is bonded only to carbon atoms, as carried out by individual cells. The general formula for a ketone is RCOR, where R and R are alkyl or aryl groups. The chemical reactions and pathways resulting in the formation of any of a diverse group of vitamins that are soluble in organic solvents and relatively insoluble in water. 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. 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. The chemical reactions and pathways involving quinone cofactors. The chemical reactions and pathways resulting in the formation of phylloquinone, vitamin K1, a quinone-derived compound synthesized by green plants.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: vitamin K biosynthetic process
Acc: GO:0042371
Aspect: Biological Process
Desc: 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.
Synonyms:
  • vitamin K anabolism
  • vitamin K biosynthesis
  • naphthoquinone metabolic process
  • naphthoquinone metabolism
  • vitamin K formation
  • vitamin K synthesis
Proteins in PDR annotated with:
   This term: 1 [Search]
   Term or descendants: 105 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0042371 - vitamin K biosynthetic process (interactive image map)
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