Hartnup disorder is an autosomal recessive defect of neutral amino acid transport in kidney and intestine accompanied by the symptoms including pellagra-like photo-sensitive skin rash, cerebellar ataxia, and renal aminoaciduria. It is caused by hereditary abnormalities in the neutral amino acid transporter B0AT1 (SLC6A19) in apical membrane.
Category
Inherited metabolic disorder
Brite
Human diseases in ICD-11 classification [BR:br08403]
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Disorders of metabolite absorption or transport
5C60 Disorders of amino acid absorption or transport
H00843 Hartnup disorder