Difference between revisions of "AbfA"

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* '''Regulation:''' repressed by glucose ([[CcpA]])
 
* '''Regulation:''' repressed by glucose ([[CcpA]])
 +
** repressed in the absence of arabinose ([[AraR]]) [http://www.ncbi.nlm.nih.gov/sites/entrez/10417639 PubMed]
  
 
* '''Regulatory mechanism:''' [[CcpA]]: transcription repression  
 
* '''Regulatory mechanism:''' [[CcpA]]: transcription repression  
 +
** [[AraR]]:  transcription repression [http://www.ncbi.nlm.nih.gov/sites/entrez/10417639 PubMed]
  
 
* '''Additional information:'''
 
* '''Additional information:'''

Revision as of 11:46, 11 June 2009

  • Description: alpha-L-arabinofuranosidase

Gene name abfA
Synonyms
Essential no
Product alpha-L-arabinofuranosidase
Function arabinan degradation
Metabolic function and regulation of this protein in SubtiPathways:
Sugar catabolism
MW, pI 56 kDa, 5.344
Gene length, protein length 1500 bp, 500 aa
Immediate neighbours cstA, araQ
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
AbfA context.gif
This image was kindly provided by SubtiList





The gene

Basic information

  • Locus tag: BSU28720

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Hydrolysis of terminal non-reducing alpha-L-arabinofuranoside residues in alpha-L-arabinosides (according to Swiss-Prot)
  • Protein family: glycosyl hydrolase 51 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: cell membrane (according to Swiss-Prot)

Database entries

  • Structure: 1QW8 (complex with Ara-alpha-Xyl, Geobacillus stearothermophilus), 1PZ3 (Geobacillus stearothermophilus)
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation: repressed by glucose (CcpA)
    • repressed in the absence of arabinose (AraR) PubMed
  • Regulatory mechanism: CcpA: transcription repression
  • 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

José Manuel Inácio, Carla Costa, Isabel de Sá-Nogueira
Distinct molecular mechanisms involved in carbon catabolite repression of the arabinose regulon in Bacillus subtilis.
Microbiology (Reading): 2003, 149(Pt 9);2345-2355
[PubMed:12949161] [WorldCat.org] [DOI] (P p)

Isabel Sa-Nogueira, Teresa V Nogueira, Snia Soares, Hermnia de Lencastre
The Bacillus subtilis L-arabinose (ara) operon: nucleotide sequence, genetic organization and expression.
Microbiology (Reading): 1997, 143 ( Pt 3);957-969
[PubMed:9084180] [WorldCat.org] [DOI] (P p)


  1. Inácio JM, Costa C, de Sá-Nogueira I. (2003) Distinct molecular mechanisms involved in carbon catabolite repression of the arabinose regulon in Bacillus subtilis. Microbiology. Sep;149(Pt 9): 2345-55. PubMed# Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed
  2. Sa-Nogueira I.M.G., Nogueira T.V., Soares S., de Lencastre H. (1997) The Bacillus subtilis L-arabinose (ara) operon: nucleotide sequence, genetic organization and expression. Microbiology. Mar;143(Pt 3): 957-69. PubMed