has_participant has participant has participant anion:anion antiporter activity Enables the transfer of a solute or solutes from one side of a membrane to the other according to the reaction: anion A(out) + anion B(in) = anion A(in) + anion B(out). GO:0015301 GO:0015380 GO:0015384 Reactome:R-HSA-561041 anion exchanger activity bicarbonate:chloride antiporter molecular_function solute:anion antiporter activity SLC26A4 SLC4A1 SLC4A2 SLC22A6 SLC22A8 SLC22A7 SLC4A9 SLC26A7