4Z1V:
reference: Substrate Promotes Productive Gas Binding in the alpha-Ketoglutarate-Dependent Oxygenase FIH., Taabazuing CY, Fermann J, Garman S, Knapp MJ, Biochemistry. 2016 Jan 19;55(2):277-86. doi: 10.1021/acs.biochem.5b01003. Epub, 2016 Jan 5. PMID: 26727884

This OCA Structure page
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