PolA

• Description: DNA polymerase I, required for repair of UV- or MMS-induced DNA damage
  
  

Gene name	polA
Synonyms
Essential	no
Product	DNA polymerase I
Function	DNA replication
Gene expression levels in SubtiExpress: polA
MW, pI	98 kDa, 4.916
Gene length, protein length	2640 bp, 880 aa
Immediate neighbours	mutM, phoR
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

DNA repair/ recombination

The gene

Basic information

• Locus tag: BSU29090

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: has DNA polymerase and 5'-3' exonuclease activity, but no 3'-5' exonuclease activity PubMed

• Protein family: DNA polymerase type-A family (according to Swiss-Prot)

• Paralogous protein(s): YpcP, one of the two proteins has to be present for viability PubMed

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • PolA-PolY1-DnaN PubMed, PolA-PolY2 PubMed

• Localization:

Database entries

• Structure: 1XWL (large fragment, corresponds to AA 310 to 880, Geobacillus stearothermophilus)

• UniProt: O34996

• KEGG entry: [2]

• E.C. number: 2.7.7.7

Expression and regulation

• Operon:

• Expression browser: polA PubMed

• Sigma factor:

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Sanae Fukushima, Mitsuhiro Itaya, Hiroaki Kato, Naotake Ogasawara, Hirofumi Yoshikawa
Reassessment of the in vivo functions of DNA polymerase I and RNase H in bacterial cell growth.
J Bacteriol: 2007, 189(23);8575-83
[PubMed:17905985] [WorldCat.org] [DOI] (I p)

Helena B Thomaides, Ella J Davison, Lisa Burston, Hazel Johnson, David R Brown, Alison C Hunt, Jeffery Errington, Lloyd Czaplewski
Essential bacterial functions encoded by gene pairs.
J Bacteriol: 2007, 189(2);591-602
[PubMed:17114254] [WorldCat.org] [DOI] (P p)

Stéphane Duigou, S Dusko Ehrlich, Philippe Noirot, Marie-Françoise Noirot-Gros
DNA polymerase I acts in translesion synthesis mediated by the Y-polymerases in Bacillus subtilis.
Mol Microbiol: 2005, 57(3);678-90
[PubMed:16045613] [WorldCat.org] [DOI] (P p)