1H5Y:
reference: Structure of HisF, a histidine biosynthetic protein from Pyrobaculum aerophilum., Banfield MJ, Lott JS, Arcus VL, McCarthy AA, Baker EN, Acta Crystallogr D Biol Crystallogr 2001 Nov;57(Pt 11):1518-25. PMID: 11679715

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