title: VITAMIN B12 AND THE SYNTHESIS OF THE METHYL GROUPS OF CHOLINE IN OCHROMONAS MALHAMENSIS.
mesh_terms: D000478:Alkylation; D002247:Carbon Isotopes; D002794:Choline; D003067:Coenzymes; D056890:Eukaryota; D005557:Formaldehyde; D005561:Formates; D006710:Homocysteine; D008660:Metabolism; D008715:Methionine; D044663:Ochromonas; D011874:Radiometry; D012106:Research; D014316:Tritium; D014805:Vitamin B 12
chemical_list: D002247:Carbon Isotopes; D003067:Coenzymes; D005561:Formates; D006710:Homocysteine; D014316:Tritium; D005557:Formaldehyde; D008715:Methionine; D002794:Choline; D014805:Vitamin B 12
keywords: ALKYLATION; CARBON ISOTOPES; CHOLINE; COENZYMES; EXPERIMENTAL LAB STUDY; FORMALDEHYDE; FORMATES; HOMOCYSTEINE; MASTIGOPHORA; METABOLISM; METHIONINE; RADIOMETRY; TRITIUM; VITAMIN B 12