DnaE

• Description: DNA polymerase III (alpha subunit), part of the replisome
  
  

Gene name	dnaE
Synonyms
Essential	yes PubMed
Product	DNA polymerase III (alpha subunit)
Function	DNA replication
Gene expression levels in SubtiExpress: dnaE
Interactions involving this protein in SubtInteract: DnaE
MW, pI	125 kDa, 6.02
Gene length, protein length	3345 bp, 1115 aa
Immediate neighbours	ytsJ, ytrH
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

DNA replication, essential genes

This gene is a member of the following regulons

LexA regulon

The gene

Basic information

• Locus tag: BSU29230

Phenotypes of a mutant

essential PubMed

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:
  • Deoxynucleoside triphosphate + DNA(n) = diphosphate + DNA(n+1) (according to Swiss-Prot)
  • required for bacteriophage SPP1 replication PubMed

• Protein family: DnaE subfamily (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • part of the replisome: PolC-HolA-HolB-DnaX-DnaN-DnaG-DnaC-DnaI-DnaD-SsbA-DnaE-PriA-DnaB PubMed
  • DnaE-MutL PubMed
  • DnaE-MutS PubMed
  • DnaE-DnaN PubMed
  • DnaE-SsbA PubMed
  • DnaE-DnaC PubMed
  • DnaE-DnaG PubMed
  • DnaE-HolA PubMed
  • DnaE-PolC PubMed

• Localization:
  • forms foci, the foci dissappear after the formation of DNA mismatches in a MutS-dependent manner or after DNA replication arrest PubMed
  • cytoplasm (according to Swiss-Prot)

Database entries

• Structure:
  • 3E0D (from Thermus aquaticus, 39% identity) PubMed

• UniProt: O34623

• KEGG entry: [3]

• E.C. number: 2.7.7.7

Expression and regulation

• Operon: dnaE (according to DBTBS)

• Expression browser: dnaE PubMed

• Sigma factor:

• Regulation:
  • induced by DNA damage (LexA) PubMed

• Regulatory mechanism:
  • LexA: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Justin S Lenhart, Jeremy W Schroeder, Brian W Walsh, Lyle A Simmons
DNA repair and genome maintenance in Bacillus subtilis.
Microbiol Mol Biol Rev: 2012, 76(3);530-64
[PubMed:22933559] [WorldCat.org] [DOI] (I p)

Original publications

Kestutis Timinskas, Monika Balvočiūtė, Albertas Timinskas, Česlovas Venclovas
Comprehensive analysis of DNA polymerase III α subunits and their homologs in bacterial genomes.
Nucleic Acids Res: 2014, 42(3);1393-413
[PubMed:24106089] [WorldCat.org] [DOI] (I p)

Motohiro Akashi, Hirofumi Yoshikawa
Relevance of GC content to the conservation of DNA polymerase III/mismatch repair system in Gram-positive bacteria.
Front Microbiol: 2013, 4;266
[PubMed:24062730] [WorldCat.org] [DOI] (P e)

Olivier Rannou, Emmanuelle Le Chatelier, Marilynn A Larson, Hamid Nouri, Bérengère Dalmais, Charles Laughton, Laurent Jannière, Panos Soultanas
Functional interplay of DnaE polymerase, DnaG primase and DnaC helicase within a ternary complex, and primase to polymerase hand-off during lagging strand DNA replication in Bacillus subtilis.
Nucleic Acids Res: 2013, 41(10);5303-20
[PubMed:23563155] [WorldCat.org] [DOI] (I p)

Elena M Seco, John C Zinder, Carol M Manhart, Ambra Lo Piano, Charles S McHenry, Silvia Ayora
Bacteriophage SPP1 DNA replication strategies promote viral and disable host replication in vitro.
Nucleic Acids Res: 2013, 41(3);1711-21
[PubMed:23268446] [WorldCat.org] [DOI] (I p)

Marjorie H Barnes, Michelle M Butler, George E Wright, Neal C Brown
Antimicrobials targeted to the replication-specific DNA polymerases of gram-positive bacteria: target potential of dnaE.
Infect Disord Drug Targets: 2012, 12(5);327-31
[PubMed:23017159] [WorldCat.org] [DOI] (I p)

Andrew D Klocko, Jeremy W Schroeder, Brian W Walsh, Justin S Lenhart, Margery L Evans, Lyle A Simmons
Mismatch repair causes the dynamic release of an essential DNA polymerase from the replication fork.
Mol Microbiol: 2011, 82(3);648-63
[PubMed:21958350] [WorldCat.org] [DOI] (I p)

Glenn M Sanders, H Garry Dallmann, Charles S McHenry
Reconstitution of the B. subtilis replisome with 13 proteins including two distinct replicases.
Mol Cell: 2010, 37(2);273-81
[PubMed:20122408] [WorldCat.org] [DOI] (I p)

Richard A Wing, Scott Bailey, Thomas A Steitz
Insights into the replisome from the structure of a ternary complex of the DNA polymerase III alpha-subunit.
J Mol Biol: 2008, 382(4);859-69
[PubMed:18691598] [WorldCat.org] [DOI] (I p)

Nora Au, Elke Kuester-Schoeck, Veena Mandava, Laura E Bothwell, Susan P Canny, Karen Chachu, Sierra A Colavito, Shakierah N Fuller, Eli S Groban, Laura A Hensley, Theresa C O'Brien, Amish Shah, Jessica T Tierney, Louise L Tomm, Thomas M O'Gara, Alexi I Goranov, Alan D Grossman, Charles M Lovett
Genetic composition of the Bacillus subtilis SOS system.
J Bacteriol: 2005, 187(22);7655-66
[PubMed:16267290] [WorldCat.org] [DOI] (P p)

Emmanuelle Le Chatelier, Olivier J Bécherel, Emmanuelle d'Alençon, Danielle Canceill, S Dusko Ehrlich, Robert P P Fuchs, Laurent Jannière
Involvement of DnaE, the second replicative DNA polymerase from Bacillus subtilis, in DNA mutagenesis.
J Biol Chem: 2004, 279(3);1757-67
[PubMed:14593098] [WorldCat.org] [DOI] (P p)

E Dervyn, C Suski, R Daniel, C Bruand, J Chapuis, J Errington, L Jannière, S D Ehrlich
Two essential DNA polymerases at the bacterial replication fork.
Science: 2001, 294(5547);1716-9
[PubMed:11721055] [WorldCat.org] [DOI] (P p)