Difference between revisions of "Hbs"

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* '''Regulation:'''  
 
* '''Regulation:'''  
 +
** repressed when no DNA damage is present ([[LexA]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/16267290 PubMed]
  
 
* '''Regulatory mechanism:'''  
 
* '''Regulatory mechanism:'''  
 +
** [[LexA]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/16267290 PubMed]
  
 
* '''Additional information:''' mRNA is protected from degradation by [[RnjA]] by initiating ribosomes [http://www.ncbi.nlm.nih.gov/sites/entrez/19210617 PubMed]
 
* '''Additional information:''' mRNA is protected from degradation by [[RnjA]] by initiating ribosomes [http://www.ncbi.nlm.nih.gov/sites/entrez/19210617 PubMed]

Revision as of 16:52, 11 June 2009

  • Description: non-specific DNA-binding protein Hbsu

Gene name hbs
Synonyms dbpA
Essential yes PubMed
Product non-specific DNA-binding protein Hbsu
Function DNA packaging, function of the signal recognition complex
MW, pI 9 kDa, 9.501
Gene length, protein length 276 bp, 92 aa
Immediate neighbours mtrA, spoIVA
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
Hbs context.gif
This image was kindly provided by SubtiList



The gene

Basic information

  • Locus tag: BSU22790

Phenotypes of a mutant

essential PubMed

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity:
  • Protein family: DbpA subfamily (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification: phosphorylation on Thr-4 PubMed
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization: cytoplasm (according to Swiss-Prot), membrane associated PubMed

Database entries

  • Structure: 1HUU (Geobacillus stearothermophilus), 1EXE (phage SPO1 transcription factor, 45% identity)
  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • Operon:
  • Regulation:
    • repressed when no DNA damage is present (LexA) PubMed
  • Regulatory mechanism:
  • Additional information: mRNA is protected from degradation by RnjA by initiating ribosomes PubMed

Biological materials

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

Labs working on this gene/protein

Ciaran Condon, IBPC, Paris, France Homepage

Your additional remarks

References

Roula Daou-Chabo, Ciarán Condon
RNase J1 endonuclease activity as a probe of RNA secondary structure.
RNA: 2009, 15(7);1417-25
[PubMed:19458035] [WorldCat.org] [DOI] (I p)

Roula Daou-Chabo, Nathalie Mathy, Lionel Bénard, Ciarán Condon
Ribosomes initiating translation of the hbs mRNA protect it from 5'-to-3' exoribonucleolytic degradation by RNase J1.
Mol Microbiol: 2009, 71(6);1538-50
[PubMed:19210617] [WorldCat.org] [DOI] (I p)

Hannes Hahne, Susanne Wolff, Michael Hecker, Dörte Becher
From complementarity to comprehensiveness--targeting the membrane proteome of growing Bacillus subtilis by divergent approaches.
Proteomics: 2008, 8(19);4123-36
[PubMed:18763711] [WorldCat.org] [DOI] (I p)

Boris Macek, Ivan Mijakovic, Jesper V Olsen, Florian Gnad, Chanchal Kumar, Peter R Jensen, Matthias Mann
The serine/threonine/tyrosine phosphoproteome of the model bacterium Bacillus subtilis.
Mol Cell Proteomics: 2007, 6(4);697-707
[PubMed:17218307] [WorldCat.org] [DOI] (P p)


  1. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed