Methylmalonic aciduria (MMA) is caused by a deficiency of methylmalonyl-CoA mutase (mut type), which is a vitamin B12-dependent enzyme. Defects of adenosylcobalamin metabolism lead to variant forms of MMA (cblA and cblB type).
Dobson CM, Wai T, Leclerc D, Wilson A, Wu X, Dore C, Hudson T, Rosenblatt DS, Gravel RA
タイトル
Identification of the gene responsible for the cblA complementation group of vitamin B12-responsive methylmalonic acidemia based on analysis of prokaryotic gene arrangements.
Quadros EV, Lai SC, Nakayama Y, Sequeira JM, Hannibal L, Wang S, Jacobsen DW, Fedosov S, Wright E, Gallagher RC, Anastasio N, Watkins D, Rosenblatt DS
タイトル
Positive newborn screen for methylmalonic aciduria identifies the first mutation in TCblR/CD320, the gene for cellular uptake of transcobalamin-bound vitamin B(12).