Amino acid transport disorder
Amino acid transport disorders are medical conditions associated with a failure of amino acids to be absorbed from the kidney or intestine.
An example is Hartnup disease.

Reference
External links

Milne MD (1971). "Disorders of intestinal amino-acid transport". J Clin Pathol. 5 (Suppl): 41–4. doi:10.1136/jcp.s3-5.1.41. PMC 1176258.