2BD0:
reference: Structure of Chlorobium tepidum Sepiapterin Reductase Complex Reveals the Novel Substrate Binding Mode for Stereospecific Production of L-threo-Tetrahydrobiopterin., Supangat S, Seo KH, Choi YK, Park YS, Son D, Han CD, Lee KH, J Biol Chem. 2006 Jan 27;281(4):2249-2256. Epub 2005 Nov 24. PMID: 16308317

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