1JG5:
reference: Crystal structure of rat GTP cyclohydrolase I feedback regulatory protein, GFRP., Bader G, Schiffmann S, Herrmann A, Fischer M, Gutlich M, Auerbach G, Ploom T, Bacher A, Huber R, Lemm T, J Mol Biol 2001 Oct 5;312(5):1051-7. PMID: 11580249

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