Lysinuric Protein Intolerance

**Semantic type:** Disease or Syndrome

**Definition:** A disorder caused by the inability to digest and use lysine, arginine, and ornithine. Lysinuric protein intolerance is caused by mutations in the SLC7A7 gene. y+L amino acid transporter 1, the product of the SLC7A7 gene, is involved in transporting lysine, arginine, and ornithine between cells in the body.