RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
An autosomal recessive disorder due to defective absorption of NEUTRAL AMINO ACIDS by both the intestine and the PROXIMAL RENAL TUBULES. The abnormal urinary loss of TRYPTOPHAN, a precursor of NIACIN, leads to a NICOTINAMIDE deficiency, PELLAGRA-like light-sensitive rash, CEREBELLAR ATAXIA, emotional instability, and aminoaciduria. Mutations involve the neurotransmitter transporter gene SLC6A19.
Synonyms:
exact_synonym:
HND; Hartnup Disorder; Neutral Amino Acid Transport Defect; Neutral Amino Acid Transport Disorder; aminoaciduria, Hartnup type; deficiency of tryptophan oxygenase; neutral 1 amino acid transport defect; neutral amino acids transport disorder
DNA:mutations ClinVar Annotator: match by OMIM:234500 ClinVar Annotator: match by term: Hartnup disease ClinVar Annotator: match by term: Neutral 1 amino acid transport defect