4GOX:
reference: Structural Basis of Functional Group Activation by Sulfotransferases in Complex Metabolic Pathways., McCarthy JG, Eisman EB, Kulkarni S, Gerwick L, Gerwick WH, Wipf P, Sherman DH, Smith JL, ACS Chem Biol. 2012 Sep 26. PMID: 22991895

This OCA Structure page
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