Ornithine-citrulline antiporter. Connects the cytosolic and the intramitochondrial reactions of the urea cycle by exchanging cytosolic ornithine with matrix citrulline . The stoichiometry is close to 1:1 (By similarity).
Mitochondrion inner membrane; Multi-pass membrane protein .
Highly expressed in liver, pancreas, testis, lung and small intestine. Lower levels are detected in spleen, kidney, brain and heart.
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