[Transmethylation process and vitamin B12.  I.  Vitamin B12 catalysis of N1-alkylation of isonicotinic acid].
D000478:Alkylation; D002384:Catalysis; D045728:Corrinoids; D006397:Hematinics; D007539:Isonicotinic Acids; D009539:Nicotinic Acids / Q000378:metabolism*; D014805:Vitamin B 12 / Q000378:metabolism*
D045728:Corrinoids; D006397:Hematinics; D007539:Isonicotinic Acids; D009539:Nicotinic Acids; D014805:Vitamin B 12
NICOTINIC ACID ISOMERS/metabolism; VITAMIN B12/metabolism
Processi di transmetilazione e vitamina B12.  I.  La vitamina B12 catalizza nell'uomo in vivo la N1-alchilazione dell'acido piridin-beta-carbonico.