Article
An A245T mutation conveys on cytochrome P450eryF the ability to oxidize alternative substrates.
The Journal of biological chemistry - 17 Nov 2000
Xiang H, Tschirret-Guth R A, Ortiz De Montellano P R
Abstract excerpt
Cytochrome P450(eryF) (CYP107A1), which hydroxylates deoxyerythronolide B in erythromycin biosynthesis, lacks the otherwise highly conserved threonine that is thought to promote O-O bond scission. The role of this threonine is satisfied in P450(eryF) by a substrate hydroxyl group, making deoxyerythronolide B the only acceptable substrate. As shown here, replacement of Ala(245) by a threonine enables the oxidation...
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