title: Studies on the nature of the bound cobamide in E. coli N5-methyltetrahydrofolate-homocysteine transmethylase.
mesh_terms: D002247:Carbon Isotopes; D002729:Chloromercuribenzoates; D004926:Escherichia coli / Q000201:enzymology*; D005470:Fluorometry; D006710:Homocysteine; D011868:Radioisotopes; D014166:Transferases / Q000032:analysis*; D014805:Vitamin B 12 / Q000032:analysis*
chemical_list: D002247:Carbon Isotopes; D002729:Chloromercuribenzoates; D011868:Radioisotopes; D006710:Homocysteine; D014166:Transferases; D014805:Vitamin B 12