The methyl-folate trap and the supply of S-adenosylomethionine.
D001921:Brain / Q000378:metabolism*; D001927:Brain Diseases / Q000378:metabolism; D005492:Folic Acid / Q000378:metabolism*; D008715:Methionine / Q000096:biosynthesis*; D008745:Methylation; D012436:S-Adenosylmethionine / Q000172:deficiency*; D014806:Vitamin B 12 Deficiency / Q000378:metabolism*
D012436:S-Adenosylmethionine; D005492:Folic Acid; D008715:Methionine