title: An altered polynucleotide phosphorylase in E. coli mutant Q13.
mesh_terms: D000227:Adenine Nucleotides; D002384:Catalysis; D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000201:enzymology*; D008970:Molecular Weight; D009154:Mutation; D009713:Nucleotidyltransferases; D010759:Phosphorus Isotopes
chemical_list: D000227:Adenine Nucleotides; D010759:Phosphorus Isotopes; D009713:Nucleotidyltransferases