title: Biosynthesis of corrins. A cell-free system from Propionibacterium shermanii.
mesh_terms: D002474:Cell-Free System; D011166:Porphyrins / Q000096:biosynthesis*; D011424:Propionibacterium / Q000378:metabolism*; D012436:S-Adenosylmethionine / Q000378:metabolism; D014805:Vitamin B 12 / Q000096:biosynthesis*
chemical_list: D011166:Porphyrins; D012436:S-Adenosylmethionine; D014805:Vitamin B 12