1N2N:
reference: Crystal structures of cyanide complexes of P450cam and the oxygenase domain of inducible nitric oxide synthase-structural models of the short-lived oxygen complexes., Fedorov R, Ghosh DK, Schlichting I, Arch Biochem Biophys 2003 Jan 1;409(1):25-31. PMID: 12464241

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