6G94:
reference: X-ray structural, functional and computational studies of the O2-sensitive E. coli hydrogenase-1 C19G variant reveal an unusual [4Fe-4S] cluster., Volbeda A, Mouesca JM, Darnault C, Roessler MM, Parkin A, Armstrong FA, Fontecilla-Camps JC, Chem Commun (Camb). 2018 Jun 11. doi: 10.1039/c8cc02896f. PMID: 29888350

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