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  • Description: inhibitor of AbrB activity

Gene name abbA
Synonyms ykzF
Essential no
Product anti-repressor
Function inhibition of AbrB
Gene expression levels in SubtiExpress: abbA
Interactions involving this protein in SubtInteract: AbbA
MW, pI 7 kDa, 4.642
Gene length, protein length 195 bp, 65 aa
Immediate neighbours ykuK, ykuL
Sequences Protein DNA DNA_with_flanks
Genetic context
YkzF context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
AbbA expression.png

Categories containing this gene/protein

transcription factors and their control

This gene is a member of the following regulons

CcpA regulon, Spo0A regulon

The gene

Basic information

  • Locus tag: BSU14120

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: inhibition of AbrB activity PubMed
  • Protein family:
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Modification:
  • Effectors of protein activity:

Database entries

  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Sigma factor:
  • Regulation:
    • repressed by glucose (4.3-fold) (CcpA) PubMed
    • expressed under conditions that trigger sporulation (Spo0A) PubMed
  • Additional information:

Biological materials

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

Labs working on this gene/protein

Richard Losick, Harvard Univ., Cambridge, USA homepage

Your additional remarks


Ashley T Tucker, Benjamin G Bobay, Allison V Banse, Andrew L Olson, Erik J Soderblom, M Arthur Moseley, Richele J Thompson, Kristen M Varney, Richard Losick, John Cavanagh
A DNA mimic: the structure and mechanism of action for the anti-repressor protein AbbA.
J Mol Biol: 2014, 426(9);1911-24
[PubMed:24534728] [] [DOI] (I p)

Allison V Banse, Arnaud Chastanet, Lilah Rahn-Lee, Errett C Hobbs, Richard Losick
Parallel pathways of repression and antirepression governing the transition to stationary phase in Bacillus subtilis.
Proc Natl Acad Sci U S A: 2008, 105(40);15547-52
[PubMed:18840696] [] [DOI] (I p)

Hans-Matti Blencke, Irene Reif, Fabian M Commichau, Christian Detsch, Ingrid Wacker, Holger Ludwig, Jörg Stülke
Regulation of citB expression in Bacillus subtilis: integration of multiple metabolic signals in the citrate pool and by the general nitrogen regulatory system.
Arch Microbiol: 2006, 185(2);136-46
[PubMed:16395550] [] [DOI] (P p)

Virginie Molle, Masaya Fujita, Shane T Jensen, Patrick Eichenberger, José E González-Pastor, Jun S Liu, Richard Losick
The Spo0A regulon of Bacillus subtilis.
Mol Microbiol: 2003, 50(5);1683-701
[PubMed:14651647] [] [DOI] (P p)

Hans-Matti Blencke, Georg Homuth, Holger Ludwig, Ulrike Mäder, Michael Hecker, Jörg Stülke
Transcriptional profiling of gene expression in response to glucose in Bacillus subtilis: regulation of the central metabolic pathways.
Metab Eng: 2003, 5(2);133-49
[PubMed:12850135] [] [DOI] (P p)