Samiksha Jaiswal (Editor)

(S) usnate reductase

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EC number  1.1.1.199
IntEnz  IntEnz view
ExPASy  NiceZyme view
CAS number  77237-99-1
BRENDA  BRENDA entry
KEGG  KEGG entry

In enzymology, a (S)-usnate reductase (EC 1.1.1.199) is an enzyme that catalyzes the chemical reaction

(6R)-2-acetyl-6-(3-acetyl-2,4,6-trihydroxy-5-methylphenyl)-3-hydroxy-6- methyl-2,4-cyclohexadien-1-one + NAD+ (S)-usnic acid + NADH + H+

In the reverse direction, (S)-usnate is reduced by NADH with cleavage of the ether bond to form a 7-hydroxy group.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is reduced-(S)-usnate:NAD+ oxidoreductase (ether-bond-forming). This enzyme is also called L-usnic acid dehydrogenase.

References

(S)-usnate reductase Wikipedia


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