Cobalamin metabolism

ABCD4: ATP-binding cassette subfamily D member 4; AdoCbl: adenosylcobalamin; Cbl: cobalamin; CoA: coenzyme A; HCFC1: host cell factor C1; LMBRD1: KMBR1 domain-containing 1; MCEE: methylmalonyl-CoA epimerase; MMAA: metabolism of cobalamin associated A; MMAB: metabolism of cobalamin associated B; MMACHC: methylmalonic aciduria and homocystinuria type C; MMADHC: methylmalonic aciduria and homocystinuria type D; MTRR: 5-methyltetrahydrofolate-homocystein methyltransferase reductase; TC: transcobalamin; TCA: tricarboxylic acid; TCR: transcobalamin receptor.