1A8R:
reference: Biosynthesis of pteridines. Reaction mechanism of GTP cyclohydrolase I., Rebelo J, Auerbach G, Bader G, Bracher A, Nar H, Hosl C, Schramek N, Kaiser J, Bacher A, Huber R, Fischer M, J Mol Biol. 2003 Feb 14;326(2):503-16. PMID: 12559918

This OCA Structure page
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