YabA

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  • Description: tethers DnaA to the polymerase-clamp protein DnaN

Gene name yabA
Synonyms
Essential no
Product negative regulator of replication initiation
Function positioning of DnaA
Gene expression levels in SubtiExpress: yabA
Interactions involving this protein in SubtInteract: YabA
MW, pI 13 kDa, 6.065
Gene length, protein length 357 bp, 119 aa
Immediate neighbours yaaT, yabB
Sequences Protein DNA Advanced_DNA
Genetic context
YabA context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
YabA expression.png
























Categories containing this gene/protein

DNA replication

This gene is a member of the following regulons

The gene

Basic information

  • Locus tag: BSU00330

Phenotypes of a mutant

strongly reduced growth rate in minimal medium PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
    • negative control of replication initiation PubMed
    • associates with the oriC region in a DnaA-dependent manner, this limits the amount of DnaA that can bind the oriC region PubMed
    • YabA inhibits co-operative DNA binding by DnaA PubMed
  • Protein family: yabA family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains: leucine zipper
  • Modification:
  • Cofactor(s): Zn cluster
  • Effectors of protein activity:
    • DnaN overexpression or release from the replisome decreases association of YabA with oriC, increases association of DnaA with oriC PubMed

Database entries

  • Structure:
  • 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

Philippe Noirot, Jouy-en-Josas, France Homepage
Alan Grossman, Cambridge, MA, USA Homepage

Your additional remarks

References

Reviews

Tsutomu Katayama, Shogo Ozaki, Kenji Keyamura, Kazuyuki Fujimitsu
Regulation of the replication cycle: conserved and diverse regulatory systems for DnaA and oriC.
Nat Rev Microbiol: 2010, 8(3);163-70
[PubMed:20157337] [WorldCat.org] [DOI] (I p)

Original publications

Houra Merrikh, Alan D Grossman
Control of the replication initiator DnaA by an anti-cooperativity factor.
Mol Microbiol: 2011, 82(2);434-46
[PubMed:21895792] [WorldCat.org] [DOI] (I p)

Alexi I Goranov, Adam M Breier, Houra Merrikh, Alan D Grossman
YabA of Bacillus subtilis controls DnaA-mediated replication initiation but not the transcriptional response to replication stress.
Mol Microbiol: 2009, 74(2);454-66
[PubMed:19737352] [WorldCat.org] [DOI] (I p)

Avigdor Eldar, Vasant K Chary, Panagiotis Xenopoulos, Michelle E Fontes, Oliver C Losón, Jonathan Dworkin, Patrick J Piggot, Michael B Elowitz
Partial penetrance facilitates developmental evolution in bacteria.
Nature: 2009, 460(7254);510-4
[PubMed:19578359] [WorldCat.org] [DOI] (I p)

Clarisse Defeu Soufo, Hervé Joël Defeu Soufo, Marie-Françoise Noirot-Gros, Astrid Steindorf, Philippe Noirot, Peter L Graumann
Cell-cycle-dependent spatial sequestration of the DnaA replication initiator protein in Bacillus subtilis.
Dev Cell: 2008, 15(6);935-41
[PubMed:19081080] [WorldCat.org] [DOI] (I p)

Marie-Françoise Noirot-Gros, M Velten, M Yoshimura, S McGovern, T Morimoto, S D Ehrlich, N Ogasawara, P Polard, Philippe Noirot
Functional dissection of YabA, a negative regulator of DNA replication initiation in Bacillus subtilis.
Proc Natl Acad Sci U S A: 2006, 103(7);2368-73
[PubMed:16461910] [WorldCat.org] [DOI] (P p)

Marie-Françoise Noirot-Gros, Etienne Dervyn, Ling Juan Wu, Peggy Mervelet, Jeffery Errington, S Dusko Ehrlich, Philippe Noirot
An expanded view of bacterial DNA replication.
Proc Natl Acad Sci U S A: 2002, 99(12);8342-7
[PubMed:12060778] [WorldCat.org] [DOI] (P p)