HMBS, hydroxymethylbilane synthase, 3145

N. diseases: 140; N. variants: 66
Disease: Ataxia ×
Source: ALL
Disease Score gda Association Type Type Original DB Sentence supporting the association PMID PMID Year
CUI: C0004134
Disease: Ataxia
Ataxia 		0.010 GeneticVariation phenotype BEFREE Homozygous R173Q mice were embryonic lethal, while R167Q homozygous mice (R167Q+/+) had ~5% of normal HMBS activity, constitutively elevated plasma and urinary 5-aminolevulinic acid (ALA) and porphobilinogen (PBG), profound early-onset ataxia, delayed motor development and markedly impaired rotarod performance. 30615115 2019