Figure 1From: Mutations in ALDH6A1encoding methylmalonate semialdehyde dehydrogenase are associated with dysmyelination and transient methylmalonic aciduriaValine and thymine catabolism, resulting in the oxidative decarboxylation of methylmalonic semialdehyde (MMSA) into propionyl-CoA by methylmalonate semialdehyde dehydrogenase. HIBA: 3-hydroxyisobutyric acid; AIBA: 3-aminoisobutyric acid.Back to article page