Defective metabolism of vitamin B 12 in fibroblasts from children with methylmalonicaciduria.

Adolescent Adult Cells, Cultured Child Child, Preschool Cobalt Isotopes Deoxyadenosines/metabolism Enzyme Activation Fibroblasts/enzymology,metabolism Folic Acid Homocysteine Humans Hydroxocobalamin/metabolism,pharmacology Infant Infant, Newborn Male Malonates/urine Metabolism, Inborn Errors/enzymology,metabolism Methylation Methyltransferases Vitamin B 12/metabolism,pharmacology

Cobalt Isotopes Deoxyadenosines Malonates Homocysteine Folic Acid Methyltransferases Vitamin B 12 Hydroxocobalamin