3BUJ:
reference: Structural characterization of CalO2: a putative orsellinic acid P450 oxidase in the calicheamicin biosynthetic pathway., McCoy JG, Johnson HD, Singh S, Bingman CA, Lei IK, Thorson JS, Phillips GN Jr, Proteins. 2009 Jan;74(1):50-60. PMID: 18561189

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