2QBM:
reference: Alteration of P450 Distal Pocket Solvent Leads to Impaired Proton Delivery and Changes in Heme Geometry., Makris TM, Koenig KV, Schlichting I, Sligar SG, Biochemistry. 2007 Dec 11;46(49):14129-14140. Epub 2007 Nov 15. PMID: 18001135

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