AppB

• Description: oligopeptide ABC transporter (permease)
  
  

Gene name	appB
Synonyms
Essential	no
Product	oligopeptide ABC transporter (permease))
Function	uptake of oligopeptides
MW, pI	35 kDa, 9.772
Gene length, protein length	951 bp, 317 aa
Immediate neighbours	appA, appC
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU11390

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: ABC transmembrane type-1 domain (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:

• Swiss prot entry: P42062

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: appD-appF-appA-appB-appC

• Sigma factor:

• Regulation: repressed by casamino acids PubMed, repressed by CodY PubMed
  • repressed during exponential growth (ScoC) PubMed
  • repressed during growth in the presence of branched chain amino acids (CodY) PubMed

• Regulatory mechanism: CodY: transcription repression PubMed
  • ScoC: transcription repression PubMed
  • CodY: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Virginie Molle, Yoshiko Nakaura, Robert P Shivers, Hirotake Yamaguchi, Richard Losick, Yasutaro Fujita, Abraham L Sonenshein
Additional targets of the Bacillus subtilis global regulator CodY identified by chromatin immunoprecipitation and genome-wide transcript analysis.
J Bacteriol: 2003, 185(6);1911-22
[PubMed:12618455] [WorldCat.org] [DOI] (P p)

Ulrike Mäder, Georg Homuth, Christian Scharf, Knut Büttner, Rüdiger Bode, Michael Hecker
Transcriptome and proteome analysis of Bacillus subtilis gene expression modulated by amino acid availability.
J Bacteriol: 2002, 184(15);4288-95
[PubMed:12107147] [WorldCat.org] [DOI] (P p)

A Koide, M Perego, J A Hoch
ScoC regulates peptide transport and sporulation initiation in Bacillus subtilis.
J Bacteriol: 1999, 181(13);4114-7
[PubMed:10383984] [WorldCat.org] [DOI] (P p)

Y Quentin, G Fichant, F Denizot
Inventory, assembly and analysis of Bacillus subtilis ABC transport systems.
J Mol Biol: 1999, 287(3);467-84
[PubMed:10092453] [WorldCat.org] [DOI] (P p)

A Koide, J A Hoch
Identification of a second oligopeptide transport system in Bacillus subtilis and determination of its role in sporulation.
Mol Microbiol: 1994, 13(3);417-26
[PubMed:7997159] [WorldCat.org] [DOI] (P p)