SEARCH Articles Figures Tables 5,10-methylenetetrahydrofolate homocysteine metabolism Cysteine homocysteine metabolism Folates homocysteine metabolism Folic acid homocysteine metabolism Homocysteine Homocysteine metabolism AdoMet) Homocysteine metabolism cobalamins Homocysteine metabolism disorders Homocysteine metabolism methionine synthase Homocysteine metabolism pyridoxal-5 -phosphate L-Homocysteine metabolism Methylenetetrahydrofolate reductase homocysteine metabolism Subject homocysteine metabolism Tetrahydrofolate homocysteine metabolism