The tricarboxylate or citrate transporter protein (CTP) catalyzes the transport of citrate across the inner mitochondrial membrane by an exchange for malate or some other anionic metabolite. Using primers based on the rat liver cDNA sequence, overlapping cDNA clones encoding the bovine CTP were isolated from bovine liver poly(A+) cDNA. The entire bovine cDNA is 1151 bp in length with 5' and 3' untranslated regions of 7 and 204 bp, respectively. The open reading frame encodes the mature protein consisting of 298 amino acids, preceded by a presequence of 13 amino acids. The amino acid sequence of the mature bovine CTP is 95.6, 94.9, 32.2% identical to that of the citrate carrier from man, rat and yeast, respectively
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