NCIt related terms : 5,10-Methylenetetrahydrofolate Reductase Deficiency;
NCIt definition : A rare disorder associated with mental retardation, spasticity, and early death.;
Alternative definition : NICHD: 5,10-Methylenetetrahydrofolate reductase deficiency is the most prevalent inborn
error of folate metabolism, and has variable clinical manifestations from asymptomatic
to severe psychomotor retardation, microcephalus and seizure. Methylenetetrahydrofolate
reductase catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate,
a cosubstrate for homocysteine remethylation to methionine.;