Literature DB >> 8784207

Effect on DNA topology by DnaA protein, the initiation factor of chromosomal DNA replication in Escherichia coli.

T Mizushima1, T Katayama, K Sekimizu.   

Abstract

We examined effects on supercoiled DNA topology of DnaA protein, the initiator protein of chromosomal DNA replication in Escherichia coli. The activity was identified in an analysis of plasmid DNA incubated with DnaA protein and DNA topoisomerase I. In Superose 12 gel filtration chromatography, the activity coeluted with DnaA protein. Incubation of DnaA protein with DNA at temperatures over 24 degrees C was required for this activity, which was observed with either oriC plasmid or the replicative form I of phi X174 with no DnaA box. As binding of ATP or ADP to DnaA protein prevented the activity of DnaA protein on DNA topology, binding of the adenine nucleotide may regulate the activity.

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Year:  1996        PMID： 8784207     DOI： 10.1021/bi953088f

Source DB:  PubMed          Journal:  Biochemistry        ISSN： 0006-2960            Impact factor:   3.162


  8 in total

1.  Suppression of temperature-sensitivity of a dnaA46 mutant by excessive DNA supercoiling.

Authors:  T Kondo; S Mima; N Fukuma; K Sekimizu; T Tsuchiya; T Mizushima
Journal:  Biochem J       Date:  2000-06-01       Impact factor: 3.857

2.  Involvement of Arg-328, Arg-334 and Arg-342 of DnaA protein in the functional interaction with acidic phospholipids.

Authors:  Y Yamaguchi; M Hase; M Makise; S Mima; T Yoshimi; Y Ishikawa; T Tsuchiya; T Mizushima
Journal:  Biochem J       Date:  1999-06-01       Impact factor: 3.857

3.  Localized melting of duplex DNA by Cdc6/Orc1 at the DNA replication origin in the hyperthermophilic archaeon Pyrococcus furiosus.

Authors:  Fujihiko Matsunaga; Kie Takemura; Masaki Akita; Akinori Adachi; Takeshi Yamagami; Yoshizumi Ishino
Journal:  Extremophiles       Date:  2009-09-30       Impact factor: 2.395

Review 4.  Linkage map of Escherichia coli K-12, edition 10: the traditional map.

Authors:  M K Berlyn
Journal:  Microbiol Mol Biol Rev       Date:  1998-09       Impact factor: 11.056

Review 5.  Stable DNA replication: interplay between DNA replication, homologous recombination, and transcription.

Authors:  T Kogoma
Journal:  Microbiol Mol Biol Rev       Date:  1997-06       Impact factor: 11.056

6.  Negative control of DNA replication by hydrolysis of ATP bound to DnaA protein, the initiator of chromosomal DNA replication in Escherichia coli.

Authors:  T Mizushima; S Nishida; K Kurokawa; T Katayama; T Miki; K Sekimizu
Journal:  EMBO J       Date:  1997-06-16       Impact factor: 11.598

7.  Biochemical analysis of DnaA protein with mutations in both Arg328 and Lys372.

Authors:  Masaki Makise; Shinji Mima; Motohiro Koterasawa; Tomofusa Tsuchiya; Tohru Mizushima
Journal:  Biochem J       Date:  2002-03-01       Impact factor: 3.857

8.  Conserved hydrophobic amino acid residues in the N-terminal region of DnaA protein are involved in DnaA-DnaA interaction.

Authors:  Shinji Mima; Masaki Makise; Motohiro Koterasawa; Tomofusa Tsuchiya; Tohru Mizushima
Journal:  Biochem J       Date:  2002-08-01       Impact factor: 3.857
  8 in total

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