YbbA

• Description: putative bacillibactin esterase
  
  

Gene name	ybbA
Synonyms
Essential	no
Product	putative bacillibactin esterase
Function	iron acquisition from bacillibactin
Metabolic function and regulation of this protein in SubtiPathways: Stress
MW, pI	21 kDa, 7.912
Gene length, protein length	567 bp, 189 aa
Immediate neighbours	ybaS, feuC
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: BSU01600

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:

Database entries

• Structure:

• UniProt: P55192

• 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

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)

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)