RecO

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  • Description: mediator of RecA binding to ssDNA

Gene name recO
Synonyms yqxN, yqfI
Essential no
Product mediator of RecA binding to ssDNA
Function DNA repair/ recombination
Gene expression levels in SubtiExpress: recO
Interactions involving this protein in SubtInteract: RecO
MW, pI 29 kDa, 8.208
Gene length, protein length 765 bp, 255 aa
Immediate neighbours glyQ, yqzL
Sequences Protein DNA DNA_with_flanks
Genetic context
RecO context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
RecO expression.png















Categories containing this gene/protein

DNA repair/ recombination

This gene is a member of the following regulons

The gene

Basic information

  • Locus tag: BSU25280

Phenotypes of a mutant

  • drastically reduced survival of mature dormant spores after exposure to ultrahigh vacuum desiccation and ionizing radiation that induce single strand (ss) DNA nicks and double-strand breaks (DSBs) PubMed

Database entries

  • DBTBS entry: no entry
  • SubtiList entry: [1]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
    • provides RecA access to ssDNA during chromosomal transformation (together with DprA) PubMed
    • catalyzes annealing of SsbA or SsbA/SsbB coated ssDNAs to allow the formation of DNA duplexes with tails during plasmid transformation PubMed
  • Protein family: recO family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:
  • Localization:
    • cytoplasm (according to Swiss-Prot)
    • localizes to the DNA entry pole during transformation PubMed

Database entries

  • KEGG entry: [2]
  • E.C. number:

Additional information

Expression and regulation

  • Operon:
  • Sigma factor:
  • Regulation:
  • Regulatory mechanism:
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

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

Ignacija Vlašić, Ramona Mertens, Elena M Seco, Begoña Carrasco, Silvia Ayora, Günther Reitz, Fabian M Commichau, Juan C Alonso, Ralf Moeller
Bacillus subtilis RecA and its accessory factors, RecF, RecO, RecR and RecX, are required for spore resistance to DNA double-strand break.
Nucleic Acids Res: 2014, 42(4);2295-307
[PubMed:24285298] [WorldCat.org] [DOI] (I p)

Tribhuwan Yadav, Begoña Carrasco, Angela R Myers, Nicholas P George, James L Keck, Juan C Alonso
Genetic recombination in Bacillus subtilis: a division of labor between two single-strand DNA-binding proteins.
Nucleic Acids Res: 2012, 40(12);5546-59
[PubMed:22373918] [WorldCat.org] [DOI] (I p)

Audrey Costes, François Lecointe, Stephen McGovern, Sophie Quevillon-Cheruel, Patrice Polard
The C-terminal domain of the bacterial SSB protein acts as a DNA maintenance hub at active chromosome replication forks.
PLoS Genet: 2010, 6(12);e1001238
[PubMed:21170359] [WorldCat.org] [DOI] (I e)

Candela Manfredi, Yuki Suzuki, Tribhuwan Yadav, Kunio Takeyasu, Juan C Alonso
RecO-mediated DNA homology search and annealing is facilitated by SsbA.
Nucleic Acids Res: 2010, 38(20);6920-9
[PubMed:20581116] [WorldCat.org] [DOI] (I p)

Dawit Kidane, Begoña Carrasco, Candela Manfredi, Katharina Rothmaier, Silvia Ayora, Serkalem Tadesse, Juan C Alonso, Peter L Graumann
Evidence for different pathways during horizontal gene transfer in competent Bacillus subtilis cells.
PLoS Genet: 2009, 5(9);e1000630
[PubMed:19730681] [WorldCat.org] [DOI] (I p)

Candela Manfredi, Begoña Carrasco, Silvia Ayora, Juan C Alonso
Bacillus subtilis RecO nucleates RecA onto SsbA-coated single-stranded DNA.
J Biol Chem: 2008, 283(36);24837-47
[PubMed:18599486] [WorldCat.org] [DOI] (P p)

Joanna Timmins, Ingar Leiros, Sean McSweeney
Crystal structure and mutational study of RecOR provide insight into its mode of DNA binding.
EMBO J: 2007, 26(13);3260-71
[PubMed:17581636] [WorldCat.org] [DOI] (P p)