title: Enzymic synthesis of vitamin B 12.
mesh_terms: D001562:Benzimidazoles / Q000378:metabolism*; D002474:Cell-Free System; D003067:Coenzymes / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology / Q000378:metabolism*; D006150:Guanine Nucleotides / Q000378:metabolism*; D009243:NAD; D012270:Ribosomes; D014465:Ultrasonics; D014805:Vitamin B 12 / Q000096:biosynthesis*
chemical_list: D001562:Benzimidazoles; D003067:Coenzymes; D006150:Guanine Nucleotides; D009243:NAD; D014805:Vitamin B 12