Studies on deacetoxycephalosporin C synthase support a consensus mechanism for 2-oxoglutarate dependent oxygenases.
Deacetoxycephalosporin C synthase (DAOCS) catalyzes the oxidative ring expansion of penicillin N (penN) to give deacetoxycephalosporin C (DAOC), which is the committed step in the biosynthesis of the clinically important cephalosporin antibiotics. DAOCS belongs to the family of non-heme iron(II) and 2-oxoglutarate (2OG) dependent oxygenases, which have substantially conserved active sites and are proposed to employ a consensus mechanism proceeding via formation of an enzyme·Fe(II)·2OG·substra...Expand abstract
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