title: Quaternary structure of Escherichia coli polynucleotide phosphorylase: new evidence for a trimeric structure.
mesh_terms: D001665:Binding Sites; D003998:Dicarboxylic Acids; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000201:enzymology*; D007094:Imides; D011117:Polyribonucleotide Nucleotidyltransferase; D011485:Protein Binding; D011487:Protein Conformation
chemical_list: D003998:Dicarboxylic Acids; D007094:Imides; D011117:Polyribonucleotide Nucleotidyltransferase