title: Biosynthesis of corrins. II. Incorporation of 13C-labeled substrates in vitamins B12.
mesh_terms: D002247:Carbon Isotopes; D009682:Magnetic Resonance Spectroscopy; D008715:Methionine / Q000378:metabolism; D011424:Propionibacterium / Q000378:metabolism; D014805:Vitamin B 12 / Q000096:biosynthesis*
chemical_list: D002247:Carbon Isotopes; D008715:Methionine; D014805:Vitamin B 12