PhoB

• Description: alkaline phosphatase A
  
  

Gene name	phoB
Synonyms	phoAIII
Essential	no
Product	alkaline phosphatase A
Function	aquisition of phosphate upon phosphoate starvation
MW, pI	50 kDa, 5.895
Gene length, protein length	1386 bp, 462 aa
Immediate neighbours	ydhF, ydhG
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: BSU05740

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: A phosphate monoester + H₂O = an alcohol + phosphate (according to Swiss-Prot)

• Protein family: alkaline phosphatase family (according to Swiss-Prot)

• Paralogous protein(s): PhoA

Extended information on the protein

• Kinetic information:

• Domains:

• Modification: phosphorylated on ser/ thr/ tyr PubMed

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: extracellular (signal peptide) PubMed

Database entries

• Structure:

• Swiss prot entry: P19405

• KEGG entry: [3]

• E.C. number: 3.1.3.1

Expression and regulation

• Operon: phoB-ydhF

• Sigma factor: SigA, SigE

• Regulation:
  • expressed under conditions of phosphate limitation (PhoP) PubMed

• Regulatory mechanism:
  • PhoP: transcription activation PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Marion Hulett, University of Illinois at Chicago, USA Homepage

References

Birgit Voigt, Haike Antelmann, Dirk Albrecht, Armin Ehrenreich, Karl-Heinz Maurer, Stefan Evers, Gerhard Gottschalk, Jan Maarten van Dijl, Thomas Schweder, Michael Hecker
Cell physiology and protein secretion of Bacillus licheniformis compared to Bacillus subtilis.
J Mol Microbiol Biotechnol: 2009, 16(1-2);53-68
[PubMed:18957862] [WorldCat.org] [DOI] (I p)

Alain Lévine, Françoise Vannier, Cédric Absalon, Lauriane Kuhn, Peter Jackson, Elaine Scrivener, Valérie Labas, Joëlle Vinh, Patrick Courtney, Jérôme Garin, Simone J Séror
Analysis of the dynamic Bacillus subtilis Ser/Thr/Tyr phosphoproteome implicated in a wide variety of cellular processes.
Proteomics: 2006, 6(7);2157-73
[PubMed:16493705] [WorldCat.org] [DOI] (P p)

W Liu, F M Hulett
Bacillus subtilis PhoP binds to the phoB tandem promoter exclusively within the phosphate starvation-inducible promoter.
J Bacteriol: 1997, 179(20);6302-10
[PubMed:9335276] [WorldCat.org] [DOI] (P p)

F M Hulett, J Lee, L Shi, G Sun, R Chesnut, E Sharkova, M F Duggan, N Kapp
Sequential action of two-component genetic switches regulates the PHO regulon in Bacillus subtilis.
J Bacteriol: 1994, 176(5);1348-58
[PubMed:8113174] [WorldCat.org] [DOI] (P p)

1. Voigt et al. (2009) Cell physiology and protein secretion of Bacillus licheniformis compared to Bacillus subtilis. J Mol Microbiol Biotechnol. 16: 53-68 PubMed
2. Lévine et al. (2006) Analysis of the dynamic Bacillus subtilis Ser/Thr/Tyr phosphoproteome implicated in a wide variety of cellular processes. Proteomics 6: 2157-2173 PubMed
3. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed