1WPL:
reference: Structural basis of biopterin-induced inhibition of GTP cyclohydrolase I by GFRP, its feedback regulatory protein., Maita N, Hatakeyama K, Okada K, Hakoshima T, J Biol Chem 2004 Dec 3;279(49):51534-40. Epub 2004 Sep 23. PMID: 15448133

This OCA Structure page
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