Enables the transfer of organic anions from one side of a membrane to the other. Organic anions are atoms or small molecules with a negative charge which contain carbon in covalent linkage.
Reactome:R-HSA-561041 "OAT1-3 transport organic anions with antiport of dicarboxylic acids"
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Reactome:R-HSA-9794830 "SLC22A8 transports Cipro into renal cell"
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reactome:R-HSA-2142859 "Growing HA is extruded from the cell by ABCC5"