title: Evidence for a functional pyridine nucleotide cycle in Escherichia coli.
mesh_terms: D004926:Escherichia coli / Q000378:metabolism*; D009243:NAD / Q000096:biosynthesis*; D009536:Niacinamide / Q000378:metabolism; D009539:Nicotinic Acids / Q000378:metabolism
chemical_list: D009539:Nicotinic Acids; D009243:NAD; D009536:Niacinamide