AbfA

• Description: alpha-L-arabinofuranosidase
  
  

Gene name	abfA
Synonyms
Essential	no
Product	alpha-L-arabinofuranosidase
Function	arabinan degradation
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 This image was kindly provided by SubtiList

The gene

Basic information

• Coordinates:

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• 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)

• Swiss prot entry: P94531

• KEGG entry: [3]

• E.C. number: 3.2.1.55

Expression and regulation

• Operon: araA-araB-araD-araL-araM-araN-araP-araQ-abfA

• Sigma factor: SigA

• Regulation: repressed by glucose (CcpA)

• Regulatory mechanism: CcpA: transcription repression

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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