Difference between revisions of "IolB"

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(Expression and regulation)
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=Expression and regulation=
 
=Expression and regulation=
 +
* '''Operon:''' ''[[iolA]]-[[iolB]]-[[iolC]]-[[iolD]]-[[iolE]]-[[iolF]]-[[iolG]]-[[iolH]]-[[iolI]]-[[iolJ]]'' {{PubMed|9226270}}
  
* '''Operon:''' ''[[iolA]]-[[iolB]]-[[iolC]]-[[iolD]]-[[iolE]]-[[iolF]]-[[iolG]]-[[iolH]]-[[iolJ]]'' [http://www.ncbi.nlm.nih.gov/sites/entrez/9226270 PubMed]
+
* '''[[Sigma factor]]:''' [[SigA]] {{PubMed|9226270}}
 
 
* '''[[Sigma factor]]:''' [[SigA]] [http://www.ncbi.nlm.nih.gov/sites/entrez/9226270 PubMed]
 
  
 
* '''Regulation:'''  
 
* '''Regulation:'''  
** repressed in the absence of inositol ([[IolR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/9887260 PubMed]
+
** repressed by glucose ([[CcpA]]) {{PubMed|10666464}}
** repressed by glucose ([[CcpA]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/10666464 PubMed]
+
** induced by inositol ([[IolR]]) {{PubMed|9887260,9226270}}
** induced by inositol ([[IolR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/9226270 PubMed]
 
  
 
* '''Regulatory mechanism:'''  
 
* '''Regulatory mechanism:'''  
** [[IolR]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/9887260 PubMed]
+
** [[IolR]]: transcription repression {{PubMed|9887260,9226270}}
** [[CcpA]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/10666464 PubMed]
+
** [[CcpA]]: transcription repression {{PubMed|10666464}}
** [[IolR]]: transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/9226270 PubMed]
 
  
 
* '''Additional information:'''
 
* '''Additional information:'''

Revision as of 22:19, 11 December 2009

  • Description: formation of 2-deoxy-5-keto-gluconic acid (4th reaction)

Gene name iolB
Synonyms yxdB
Essential no
Product formation of 2-deoxy-5-keto-gluconic acid (4th reaction)
Function myo-inositol catabolism
Metabolic function and regulation of this protein in SubtiPathways:
Sugar catabolism
MW, pI 30 kDa, 4.77
Gene length, protein length 813 bp, 271 aa
Immediate neighbours iolC, iolA
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
IolB context.gif
This image was kindly provided by SubtiList







The gene

Basic information

  • Locus tag: BSU39750

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: 5-deoxy-glucuronic acid = 5-dehydro-2-deoxy-D-gluconic acid (according to Swiss-Prot)
  • Protein family: isomerase iolB family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization:

Database entries

  • Structure:
  • KEGG entry: [3]
  • E.C. number:

Additional information

Expression and regulation

  • 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

Ken-ichi Yoshida, Masanori Yamaguchi, Tetsuro Morinaga, Masaki Kinehara, Maya Ikeuchi, Hitoshi Ashida, Yasutaro Fujita
myo-Inositol catabolism in Bacillus subtilis.
J Biol Chem: 2008, 283(16);10415-24
[PubMed:18310071] [WorldCat.org] [DOI] (P p)

Y Miwa, Y Fujita
Involvement of two distinct catabolite-responsive elements in catabolite repression of the Bacillus subtilis myo-inositol (iol) operon.
J Bacteriol: 2001, 183(20);5877-84
[PubMed:11566986] [WorldCat.org] [DOI] (P p)

K I Yoshida, T Shibayama, D Aoyama, Y Fujita
Interaction of a repressor and its binding sites for regulation of the Bacillus subtilis iol divergon.
J Mol Biol: 1999, 285(3);917-29
[PubMed:9887260] [WorldCat.org] [DOI] (P p)

K I Yoshida, D Aoyama, I Ishio, T Shibayama, Y Fujita
Organization and transcription of the myo-inositol operon, iol, of Bacillus subtilis.
J Bacteriol: 1997, 179(14);4591-8
[PubMed:9226270] [WorldCat.org] [DOI] (P p)