General Information of Disease (ID: DIS69ZQ2)

Disease Name Methylmalonic aciduria and/or homocystinuria, cblD type
Definition
An autosomal recessive inborn disorder of cobalamin metabolism caused by biallelic variants in MMADHC. Depending on the type and location of variants in MMADHC, patients may present with methylmalonic aciduria, homocystinuria, or both. MMADHC has been reported to result in the cblD complementation group of cobalamin disorders.
Disease Hierarchy
DISTUC4M: Inborn disorder of cobalamin metabolism and transport
DIS69ZQ2: Methylmalonic aciduria and/or homocystinuria, cblD type