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Structure of the [FeFe]‐hydrogenase active centre from Desulfovibrio desulfuricans ATCC 7757 (PDB:1HFE). The bridging CO that connects both Fe atoms and the water molecule that binds to the Fe atom can be viewed using the structure from C. pasteurianum (PDB:1FEH). Colour scheme is iron is orange, oxygen is red, carbon is green and nitrogen is blue. PDT, 1,3‐propanedithiol.
