title: Cobalamin inactivation decreases purine and methionine synthesis in cultured human lymphoblasts.
mesh_terms: D005492:Folic Acid / Q000378:metabolism; D006710:Homocysteine / Q000378:metabolism; D006801:Humans; D008214:Lymphocytes / Q000187:drug effects / Q000378:metabolism*; D008715:Methionine / Q000096:biosynthesis*; D009609:Nitrous Oxide / Q000494:pharmacology*; D010084:Oxidation-Reduction; D011687:Purines / Q000096:biosynthesis*; D012694:Serine / Q000096:biosynthesis; D014805:Vitamin B 12 / Q000037:antagonists & inhibitors*
chemical_list: D011687:Purines; D006710:Homocysteine; D012694:Serine; D005492:Folic Acid; D008715:Methionine; D009609:Nitrous Oxide; D014805:Vitamin B 12