FUNCTION Amino acid transporter that specifically mediates the pH-dependent export of the cationic amino acids arginine, histidine and lysine from lysosomes.INTERACTION The di-leucine motif mediates lysosomal localization.MISCELLANEOUS May play a role in the export from lysosomes of cysteamine-cysteine mixed disulfide (MxD), the product formed upon treatment by cysteamine of patients with cystinosis, a disease characterized by the accumulation of cystine in the lysosomes.SIMILARITY Belongs to the laat-1 family.
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