3BE0:
reference: The critical role of substrate-protein hydrogen bonding in the control of regioselective hydroxylation in p450cin., Meharenna YT, Slessor KE, Cavaignac SM, Poulos TL, De Voss JJ, J Biol Chem. 2008 Apr 18;283(16):10804-12. Epub 2008 Feb 12. PMID: 18270198

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