Definition of menaquinone in English:
menaquinone
noun ˌmɛnəˈkwɪnəʊn-ˈkwīˌnōn
mass nounBiochemistry One of the K vitamins, a compound produced by bacteria in the large intestine and essential for the blood-clotting process. It is an isoprenoid derivative of menadione.
Also called "vitamin K2"
Example sentencesExamples
- Mutant M249 preferentially accumulated menaquinone, which contains tetrahydrogeranylgeraniol as its side chain.
- For example, menaquinone 7 could also be written as K [2.sub.35].
- When administered, vitamin K 3 is alkylated to one of the vitamin K 2 forms of menaquinone.
- The most common form of vitamin K in animals is menaquinone 4, produced by intestinal bacteria from exogenous naphthoquinones and transformed endogenously in our own cells.
- The most common form of vitamin K2 in animals is menaquinone 4, produced by the processing of exogenous and bacterial naphthoquinones.
Origin
1940s: from the chemical name me(thyl)-na(phtho)quinone.