Novel mouse models of methylmalonic acidemia (MMA) : C57Bl6/Sv129 Mut-/- (full knock-out) and (C57Bl6/Sv129) FvBN Mut -/- (full knock-out)
Methylmalonic acidemia (MMA) is an autosomal recessive disorder caused by the deficiency of the mitochondrial enzyme methylmalonyl-CoA mutase (MUT). It is characterized by metabolic instability, multiorgan pathology, and poor prognosis for long-term survival. To study MMA caused by MUT deficiency, a series of murine models have been constructed using gene targeting and analyzed. The model is a full knock out of the mouse Mut gene that produces neonatal lethality on the C57Bl6/Sv129 background.