FeuB

• Description: ABC transporter for the siderophores enterobactin and bacillibactin (integral membrane protein)
  
  

Gene name	feuB
Synonyms
Essential	no
Product	ABC transporter for the siderophores enterobactin and bacillibactin (integral membrane protein)
Function	iron acquisition
Metabolic function and regulation of this protein in SubtiPathways: Stress
MW, pI	35 kDa, 9.539
Gene length, protein length	1002 bp, 334 aa
Immediate neighbours	feuC, feuA
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: BSU01620

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: FecCD subfamily (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:

• UniProt: P40410

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: feuA-feuB-feuC-ybbA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed in the presence of iron (Fur, CitB) PubMed
  • induced in the presence of iron chelators bacillibactin or enterobactin (Btr) PubMed

• Regulatory mechanism:
  • Fur: transcription repression PubMed
  • CitB: binding to the iron responsive element in the absence of iron
  • Btr: transcription activation in the presence of the co-activators bacillibactin or enterobactin PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Florian Peuckert, Marcus Miethke, Alexander G Albrecht, Lars-Oliver Essen, Mohamed A Marahiel
Structural basis and stereochemistry of triscatecholate siderophore binding by FeuA.
Angew Chem Int Ed Engl: 2009, 48(42);7924-7
[PubMed:19746494] [WorldCat.org] [DOI] (I p)

Ahmed Gaballa, John D Helmann
Substrate induction of siderophore transport in Bacillus subtilis mediated by a novel one-component regulator.
Mol Microbiol: 2007, 66(1);164-73
[PubMed:17725565] [WorldCat.org] [DOI] (P p)

Marcus Miethke, Oliver Klotz, Uwe Linne, Jürgen J May, Carsten L Beckering, Mohamed A Marahiel
Ferri-bacillibactin uptake and hydrolysis in Bacillus subtilis.
Mol Microbiol: 2006, 61(6);1413-27
[PubMed:16889643] [WorldCat.org] [DOI] (P p)

Juliane Ollinger, Kyung-Bok Song, Haike Antelmann, Michael Hecker, John D Helmann
Role of the Fur regulon in iron transport in Bacillus subtilis.
J Bacteriol: 2006, 188(10);3664-73
[PubMed:16672620] [WorldCat.org] [DOI] (P p)

Noel Baichoo, Tao Wang, Rick Ye, John D Helmann
Global analysis of the Bacillus subtilis Fur regulon and the iron starvation stimulon.
Mol Microbiol: 2002, 45(6);1613-29
[PubMed:12354229] [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)