title: The purification and properties of a factor containing vitamin B12 concerned in the synthesis of methionine by Escherichia coli.
mesh_terms: D004926:Escherichia coli / Q000378:metabolism*; D006397:Hematinics; D008715:Methionine / Q000378:metabolism*; D011506:Proteins / Q000737:chemistry*; D014805:Vitamin B 12 / Q000737:chemistry*
chemical_list: D006397:Hematinics; D011506:Proteins; D008715:Methionine; D014805:Vitamin B 12
keywords: ESCHERICHIA COLI/metabolism; METHIONINE/metabolism; PROTEINS/chemistry; VITAMIN B 12/chemistry