3F47:
reference: The crystal structure of C176A mutated [Fe]-hydrogenase suggests an acyl-iron ligation in the active site iron complex., Hiromoto T, Ataka K, Pilak O, Vogt S, Stagni MS, Meyer-Klaucke W, Warkentin E, Thauer RK, Shima S, Ermler U, FEBS Lett. 2009 Feb 4;583(3):585-90. Epub 2009 Jan 20. PMID: 19162018

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