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  2. Lysinuric protein intolerance

Lysinuric protein intolerance

Definition:

Lysinuric protein intolerance (LPI) is an inherited aminoaciduria caused by defective amino acid transport at the basolateral membrane of epithelial cells in intestine and kidney. Patients affected by this disorder, in general, come to medical attention from early on in life with several significant problems including failure to thrive and intellectual impairment. LPI is caused by mutations in the SLC7A7 gene, which encodes the y+LAT-1 protein, the catalytic light chain subunit of a complex belonging to the heterodimeric amino acid transporter family.

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