单词 | monooxygenase |
释义 | > as lemmasmonooxygenase monooxygenase n. Brit. /ˌmɒnəʊˈɒksᵻdʒᵻneɪz/ , /ˌmɒnəʊˈɒksᵻdʒᵻneɪs/ , U.S. /ˌmɑnoʊˈɑksədʒəˌneɪz/ , /ˌmɑnoʊˈɑksədʒəˌneɪs/ any of a class of oxidoreductase enzymes which bring about the incorporation of a single atom of oxygen into the substrate.ΚΠ 1964 O. Hayaishi in Proc. 6th Internat. Congr. Biochem. 32/1 It appears reasonable to propose that the term ‘oxygenase’ be defined to include the group of enzymes which catalyze the incorporation of either one or two atoms of molecular oxygen per molecule of organic substrates and that these two groups of enzymes be referred to as monooxygenases and dioxygenases respectively instead of hydroxylases and oxygenases. 1980 Proc. National Acad. Sci. U.S.A. 77 92/1 Tyrosine hydroxylase (tyrosine 3-monooxygenase..)..catalyzes the rate-limiting step in catecholamine biosynthesis. 1993 Science 1 Jan. 64/2 Squalene monooxygenase, a key enzyme in the sterol biosynthesis pathway, deposits only a single oxygen atom on the squalene molecule. < as lemmas |
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