Erythromycin 12 hydroxylase
class of enzymes

Erythromycin 12 hydroxylase (EC 1.14.13.154, EryK) is an enzyme with systematic name erythromycin-D,NADPH:oxygen oxidoreductase (12-hydroxylating) . This enzyme catalyses the following chemical reaction
The enzyme characterised from Saccharopolyspora erythraea converts erythromycin D into erythromycin C by introduction of a hydroxy group at the C-12 position of the macrocycle. It uses reduced nicotinamide adenine dinucleotide phosphate (NADPH) and oxygen as cofactors. Erythromycin C is subsequently converted to the antibiotic, erythromycin A, by the enzyme erythromycin 3''-O-methyltransferase.
“Erythromycin 12 hydroxylase” enters the record as class of enzymes. Crown Archives preserves that source wording while asking what Erythromycin, hydroxylase and class can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 7, 2026. The linked authority identifier is Q4027300. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Erythromycin 12 hydroxylase” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.