title: Studies on Escherichia coli chromosome proteins. II. DNA polymerases associated with the nucleoid.
abstract: Escherichia coli nucleoids isolated in the presence of spermidine have been shown to contain DNA polymerase activity of which more than 95% was ascribed to DNA polymerase I and the rest to DNA polymerases II and III. It also has been found that DNA polymerases II and III or DNA polymerase III substituted entirely for DNA polymerase I or DNA polymerase I and II in the nucleoids isolated from E. coli mutants lacking the corresponding enzyme activities.
mesh_terms: D002876:Chromosomes, Bacterial / Q000378:metabolism*; D004256:DNA Polymerase I / Q000378:metabolism; D004257:DNA Polymerase II / Q000378:metabolism; D004258:DNA Polymerase III / Q000378:metabolism; D004259:DNA-Directed DNA Polymerase / Q000378:metabolism*; D004926:Escherichia coli / Q000201:enzymology*; D007700:Kinetics; D009154:Mutation; D013045:Species Specificity; D013095:Spermidine / Q000494:pharmacology
chemical_list: D004256:DNA Polymerase I; D004257:DNA Polymerase II; D004258:DNA Polymerase III; D004259:DNA-Directed DNA Polymerase; D013095:Spermidine