title: The intracellular distribution of polynucleotide phosphorylase in Escherichia coli cells.
mesh_terms: D002462:Cell Membrane / Q000201:enzymology*; D002499:Centrifugation, Density Gradient; D004926:Escherichia coli / Q000201:enzymology*; D008274:Magnesium; D009713:Nucleotidyltransferases / Q000032:analysis*; D012260:Ribonucleases; D012270:Ribosomes / Q000201:enzymology*
chemical_list: D009713:Nucleotidyltransferases; D012260:Ribonucleases; D008274:Magnesium