has material basis in germline mutation in TDO2 familial hypertryptophanemia https://github.com/monarch-initiative/mondo/issues/4521 https://rarediseases.info.nih.gov/diseases/2871/hypertryptophanemia https://www.malacards.org/card/hypertryptophanemia GARD:0002871 SCTID:721838005 MONDO:0010907 Orphanet:2224 hypertryptophanemia MESH:C538393 familial hypertryptophanemia DOID:0111703 OMIM:600627 Familial hypertryptophanemia is characterized by intellectual deficit associated with behavioral problems: periodic mood swings, exaggerated affective responses and abnormal sexual behavior. Twelve cases have been reported so far. Congenital abnormalities in tryptophan metabolism appear to be responsible for the tryptophanemia and tryptophanuria. HYPTRP MEDGEN:419177 hypertryptophanemia, familial UMLS:C2931837 inborn disorder of tryptophan metabolism