title: DNA-dependent ATPases from Escherichia coli K12.
abstract: Four DNA-dependent ATPases have been isolated from E. coli extracts. ATPases I and III, both sensitive to NEM, require denatured DNA but differ in their heat sensitivity, elution from DEAE-cellulose, and sedimentation coefficient. ATPases II and IV are both resistant to NEM. ATPase II requires partially denatured DNA, whereas ATPase IV can be stimulated by SS DNA. ATPase I is a DNA-unwinding enzyme; ATPase II may be involved in recombination.
mesh_terms: D000251:Adenosine Triphosphatases / Q000302:isolation & purification / Q000378:metabolism*; D002852:Chromatography, Ion Exchange / Q000379:methods; D004265:DNA Helicases / Q000378:metabolism*; D004261:DNA Replication; D004277:DNA, Single-Stranded / Q000378:metabolism; D004926:Escherichia coli / Q000201:enzymology*; D011995:Recombination, Genetic; D013379:Substrate Specificity
chemical_list: D004277:DNA, Single-Stranded; D000251:Adenosine Triphosphatases; D004265:DNA Helicases