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Article

Biosynthesis of menaquinone (vitamin K2) and ubiquinone (coenzyme Q): a perspective on enzymatic mechanisms.

Vitamins and hormones - 1 Jan 2001

Meganathan R

Abstract excerpt

The benzoquinone ubiquinone (coenzyme Q) and the naphthoquinones menaquinone (vitamin K2) and demethylmenaquinone are derived from the shikimate pathway, which has been described as a "metabolic tree with many branches." Menaquinone (MK) is considered a vitamin, but coenzyme (Q) is not; MK is an essential nutrient (it cannot be synthesized by mammals), whereas Q is not considered an essential nutrient since it...

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PMID: 11153266
DOI: 10.1016/s0083-6729(01)61006-9

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