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Syndrome reference sheet
Generated 12 Oct 2026
Genetics · Metabolic / Aminoacidurias

Hartnup syndrome

Also known as: Hartnup disease

Neutral aminoaciduria with pellagra-like rash.

Medical specialty
Genetics
Subspecialty
Metabolic / Aminoacidurias
Sex & age distribution
Male: affected; Female: affected; Children: yes
Gene(s) involved
SLC6A19

Etiology & mechanism

SLC6A19 loss.

Gene(s) involved (1)

SLC6A19

Symptoms & signs (4)

ataxianeutral aminoaciduriaphotosensitive rashpsychiatric symptoms
SyndromeScope — educational reference. Content is model-generated and not clinically verified; always confirm against OMIM, Orphanet and GeneReviews before clinical use.