“Stizolobinate synthase”的意思、由来-开放百科全书

词条

Stizolobinate synthase

释义

References

{{enzyme
| Name = stizolobinate synthase
| EC_number = 1.13.11.30
| CAS_number = 65979-38-6
| IUBMB_EC_number = 1/13/11/30
| GO_code = 0050298
| image =
| width =
| caption =
}}

In enzymology, a stizolobinate synthase ({{EC number|1.13.11.30}}) is an enzyme that catalyzes the chemical reaction

3,4-dihydroxy-L-phenylalanine + O₂ 5-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde

Thus, the two substrates of this enzyme are 3,4-dihydroxy-L-phenylalanine and O₂, whereas its product is 5-(L-alanin-3-yl)-2-hydroxy-cis,cis-muconate 6-semialdehyde.

This enzyme belongs to the family of oxidoreductases, specifically those acting on single donors with O₂ as oxidant and incorporation of two atoms of oxygen into the substrate (oxygenases). The oxygen incorporated need not be derived from O₂. The systematic name of this enzyme class is 3,4-dihydroxy-L-phenylalanine:oxygen 2,3-oxidoreductase (recyclizing). This enzyme participates in tyrosine metabolism. It employs one cofactor, zinc.

References

{{cite journal | vauthors = Saito K, Komamine A | date = 1976 | title = Biosynthesis of stizolobinic acid and stizolobic acid in higher plants. An enzyme system(s) catalyzing the conversion of dihydroxyphenylalanine into stizolobinic acid and stizolobic acid from etiolated seedlings of Stizolobium hassjoo | journal = Eur. J. Biochem. | volume = 68 | pages = 237–43 | pmid = 9285 | doi = 10.1111/j.1432-1033.1976.tb10783.x | issue = 1 }}
{{cite journal | vauthors = Saito K, Komamine A | date = 1978 | title = Biosynthesis of stizolobinic acid and stizolobic acid in higher plants | journal = Eur. J. Biochem. | volume = 82 | pages = 385–92 | pmid = 624278 | issue = 2 | doi=10.1111/j.1432-1033.1978.tb12033.x}}

3 : EC 1.13.11|Zinc enzymes|Enzymes of unknown structure

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