PMID: 21840922

Authors:

Okamoto N, Yamaguchi K, Mizohata E, Tokuoka K, Uchiyama N, Sugiyama S, Matsumura H, Inaka K, Urade Y, Inoue T

Title:

Structural insight into the stereoselective production of PGF2alpha by Old Yellow Enzyme from Trypanosoma cruzi.

Journal:

J Biochem. 2011 Nov;150(5):563-8. doi: 10.1093/jb/mvr096. Epub 2011 Aug, 12.

Abstract:

Old yellow enzyme (OYE) is an NADPH oxidoreductase capable of reducing a variety of compounds. It contains flavin mononucleotide (FMN) as a prosthetic group. A ternary complex structure of OYE from Trypanosoma cruzi (TcOYE) with FMN and one of the substrates, p-hydroxybenzaldehyde, shows a striking movement around the active site upon binding of the substrate. From a structural comparison of other OYE complexed with 12-oxophytodienoate, we have constructed a complex structure with another substrate, prostaglandin H(2) (PGH(2)), to provide a proposed stereoselective reaction mechanism for the reduction of PGH(2) to prostaglandin F(2alpha) by TcOYE.