3LST:
reference: Structural characterization of CalO1: a putative orsellinic acid methyltransferase in the calicheamicin-biosynthetic pathway., Chang A, Singh S, Bingman CA, Thorson JS, Phillips GN Jr, Acta Crystallogr D Biol Crystallogr. 2011 Mar;67(Pt 3):197-203. Epub 2011, Feb 15. PMID: 21358050

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