disease has basis in dysfunction of disease caused by disruption of disease has basis in disruption of disease has feature SLC6A19 amino acid transmembrane transporter activity Aminoaciduria inherited amino acid metabolic disorder Hartnup disease DOID:1060 GARD:0006569 HND Hartnup disease Hartnup disease is a rare metabolic disorder belonging to the neutral aminoacidurias and characterized by abnormal renal and gastrointestinal transport of neutral amino acids (tryptophan, alanine, asparagine, glutamine, histidine, isoleucine, leucine, phenylalanine, serine, threonine, tyrosine and valine). Hartnup disorder ICD10:E72.0 ICD10:E72.02 MESH:D006250 MONDO:0009324 MedDRA:10019165 NCIT:C84748 OMIM:234500 Orphanet:2116 SCTID:80902009 UMLS:C0018609 aminoaciduria, Hartnup type deficiency of tryptophan oxygenase https://rarediseases.info.nih.gov/diseases/6569/hartnup-disease neutral 1 amino acid transport defect neutral amino acid transport defect hereditary photodermatosis disorder of neutral amino acid transport neurometabolic disease cerebral organic aciduria rare photodermatosis nephropathy secondary to a storage or other metabolic disease disease of transporter activity