. "\"Catalysis of the transfer of carboxylic acids from one side of the membrane to the other. Carboxylic acids are organic acids containing one or more carboxyl (COOH) groups or anions (COO-).\" [GOC:ai]" . . "carboxylic acid transmembrane transporter activity" . "Reactome:REACT_16889 \"Exchange of isocitrate and 2-oxoglutarate across the peroxisomal membrane, Homo sapiens\"" . . .