Primary structures and properties of two related forms of aryl sulfotransferases in human liver

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Abstract
CDNAs and genes of ST1A2 and ST1A3§ were isolated from human liver cDNA and genomic libraries and shown to encode arylsulfotransferases. Studies on their mRNAs and proteins expressed indicate the existence of two distinct phenol-sulfating enzymes which are involved in the metabolic activation of carcinogenic arylamines in human livers.