methylenetetrahydrofolate reductase is a flavoprotein which has recently been purified to homogeneity from pig liver ( daubner , s. c. , and matthews , r. g. ( 1982 ) j. biol . chem . 257 , 140-145 ) .
C0066357
methylenetetrahydrofolate reductase
C0016223
flavoprotein