RsbT

• Description: PP2C activator, protein serine kinase, phosphorylates RsbS and RsbR, part of the stressosome
  
  

Gene name	rsbT
Synonyms	ycxT
Essential	no
Product	PP2C activator, protein serine kinase
Function	control of SigB activity
Gene expression levels in SubtiExpress: rsbT
Interactions involving this protein in SubtInteract: RsbT
Metabolic function and regulation of this protein in SubtiPathways: Stress
MW, pI	14 kDa, 6.587
Gene length, protein length	399 bp, 133 aa
Immediate neighbours	rsbS, rsbU
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

protein modification, sigma factors and their control

The gene

Basic information

• Locus tag: BSU04690

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: phosphorylation of RsbR, RsbRB, RsbRC, and RsbRD PubMed

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:
  • phosphorylated RsbR activates the kinase activity of RsbT PubMed
  • activity is stimulated by light in a YtvA-dependent manner PubMed

• Interactions:
  • RsbS-RsbT PubMed
  • RsbR-RsbT PubMed
  • RsbRB-RsbT PubMed
  • RsbRC-RsbT PubMed
  • RsbRD-RsbT PubMed
  • RsbT-RsbU

• • component of the stressosome

• Localization:

Database entries

• Structure: 3VY9 (complete stressosome)

• UniProt: P42411

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: rsbR-rsbS-rsbT-rsbU-rsbV-rsbW-sigB-rsbX PubMed

• Expression browser: rsbT PubMed

• Sigma factor: SigA PubMed

• Regulation: constitutively expressed PubMed

• Regulatory mechanism:

• Additional information:
  • RsbT is synthesized at the same rate as RsbRA and RsbS, however, the RsbT level in growing B. subtilis is only 10% that of RsbRA, suggesting that the protein is unstable PubMed.

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

• Bill Haldenwang, San Antonio, USA
• Chet Price, Davis, USA homepage
• Rick Lewis, Newcastle, UK homepage

References

Reviews

Jon Marles-Wright, Richard J Lewis
The stressosome: molecular architecture of a signalling hub.
Biochem Soc Trans: 2010, 38(4);928-33
[PubMed:20658979] [WorldCat.org] [DOI] (I p)

Jon Marles-Wright, Richard J Lewis
The Bacillus subtilis stressosome: A signal integration and transduction hub.
Commun Integr Biol: 2008, 1(2);182-4
[PubMed:19704888] [WorldCat.org] [DOI] (I p)

Jan Pané-Farré, Richard J Lewis, Jörg Stülke
The RsbRST stress module in bacteria: a signalling system that may interact with different output modules.
J Mol Microbiol Biotechnol: 2005, 9(2);65-76
[PubMed:16319496] [WorldCat.org] [DOI] (P p)

Original Articles

Additional publications: PubMed

Locke JC, Young JW, Fontes M, Hernández Jiménez MJ, Elowitz MB  
Stochastic pulse regulation in bacterial stress response. 
Science. 2011 334:366-369. 
PubMed:21979936

Adam Reeves, Luis Martinez, William Haldenwang
Expression of, and in vivo stressosome formation by, single members of the RsbR protein family in Bacillus subtilis.
Microbiology (Reading): 2010, 156(Pt 4);990-998
[PubMed:20019076] [WorldCat.org] [DOI] (I p)

Jon Marles-Wright, Tim Grant, Olivier Delumeau, Gijs van Duinen, Susan J Firbank, Peter J Lewis, James W Murray, Joseph A Newman, Maureen B Quin, Paul R Race, Alexis Rohou, Willem Tichelaar, Marin van Heel, Richard J Lewis
Molecular architecture of the "stressosome," a signal integration and transduction hub.
Science: 2008, 322(5898);92-6
[PubMed:18832644] [WorldCat.org] [DOI] (I p)

Steven W Hardwick, Jan Pané-Farré, Olivier Delumeau, Jon Marles-Wright, James W Murray, Michael Hecker, Richard J Lewis
Structural and functional characterization of partner switching regulating the environmental stress response in Bacillus subtilis.
J Biol Chem: 2007, 282(15);11562-72
[PubMed:17303566] [WorldCat.org] [DOI] (P p)

Shuyu Zhang, Adam Reeves, Robyn L Woodbury, W G Haldenwang
Coexpression patterns of sigma(B) regulators in Bacillus subtilis affect sigma(B) inducibility.
J Bacteriol: 2005, 187(24);8520-5
[PubMed:16321960] [WorldCat.org] [DOI] (P p)

Shrin Kuo, Shuyu Zhang, Robyn L Woodbury, W G Haldenwang
Associations between Bacillus subtilis sigmaB regulators in cell extracts.
Microbiology (Reading): 2004, 150(Pt 12);4125-36
[PubMed:15583165] [WorldCat.org] [DOI] (P p)

Tae-Jong Kim, Tatiana A Gaidenko, Chester W Price
In vivo phosphorylation of partner switching regulators correlates with stress transmission in the environmental signaling pathway of Bacillus subtilis.
J Bacteriol: 2004, 186(18);6124-32
[PubMed:15342582] [WorldCat.org] [DOI] (P p)

Tae-Jong Kim, Tatiana A Gaidenko, Chester W Price
A multicomponent protein complex mediates environmental stress signaling in Bacillus subtilis.
J Mol Biol: 2004, 341(1);135-50
[PubMed:15312768] [WorldCat.org] [DOI] (P p)

Robyn L Woodbury, Tingqiu Luo, Lindsay Grant, W G Haldenwang
Mutational analysis of RsbT, an activator of the Bacillus subtilis stress response transcription factor, sigmaB.
J Bacteriol: 2004, 186(9);2789-97
[PubMed:15090521] [WorldCat.org] [DOI] (P p)

Chien-Cheng Chen, Richard J Lewis, Robin Harris, Michael D Yudkin, Olivier Delumeau
A supramolecular complex in the environmental stress signalling pathway of Bacillus subtilis.
Mol Microbiol: 2003, 49(6);1657-69
[PubMed:12950928] [WorldCat.org] [DOI] (P p)

Sujit Dutta, Richard J Lewis
Crystallization and preliminary crystallographic analysis of the kinase-recruitment domain of the PP2C-type phosphatase RsbU.
Acta Crystallogr D Biol Crystallogr: 2003, 59(Pt 1);191-3
[PubMed:12499568] [WorldCat.org] [DOI] (P p)

S Zhang, J M Scott, W G Haldenwang
Loss of ribosomal protein L11 blocks stress activation of the Bacillus subtilis transcription factor sigma(B).
J Bacteriol: 2001, 183(7);2316-21
[PubMed:11244072] [WorldCat.org] [DOI] (P p)

J M Scott, J Ju, T Mitchell, W G Haldenwang
The Bacillus subtilis GTP binding protein obg and regulators of the sigma(B) stress response transcription factor cofractionate with ribosomes.
J Bacteriol: 2000, 182(10);2771-7
[PubMed:10781545] [WorldCat.org] [DOI] (P p)

T A Gaidenko, X Yang, Y M Lee, C W Price
Threonine phosphorylation of modulator protein RsbR governs its ability to regulate a serine kinase in the environmental stress signaling pathway of Bacillus subtilis.
J Mol Biol: 1999, 288(1);29-39
[PubMed:10329124] [WorldCat.org] [DOI] (P p)

C M Kang, K Vijay, C W Price
Serine kinase activity of a Bacillus subtilis switch protein is required to transduce environmental stress signals but not to activate its target PP2C phosphatase.
Mol Microbiol: 1998, 30(1);189-96
[PubMed:9786195] [WorldCat.org] [DOI] (P p)

N Smirnova, J Scott, U Voelker, W G Haldenwang
Isolation and characterization of Bacillus subtilis sigB operon mutations that suppress the loss of the negative regulator RsbX.
J Bacteriol: 1998, 180(14);3671-80
[PubMed:9658013] [WorldCat.org] [DOI] (P p)

U Voelker, A Voelker, W G Haldenwang
The yeast two-hybrid system detects interactions between Bacillus subtilis sigmaB regulators.
J Bacteriol: 1996, 178(23);7020-3
[PubMed:8955331] [WorldCat.org] [DOI] (P p)

X Yang, C M Kang, M S Brody, C W Price
Opposing pairs of serine protein kinases and phosphatases transmit signals of environmental stress to activate a bacterial transcription factor.
Genes Dev: 1996, 10(18);2265-75
[PubMed:8824586] [WorldCat.org] [DOI] (P p)

U Voelker, A Voelker, W G Haldenwang
Reactivation of the Bacillus subtilis anti-sigma B antagonist, RsbV, by stress- or starvation-induced phosphatase activities.
J Bacteriol: 1996, 178(18);5456-63
[PubMed:8808936] [WorldCat.org] [DOI] (P p)

C M Kang, M S Brody, S Akbar, X Yang, C W Price
Homologous pairs of regulatory proteins control activity of Bacillus subtilis transcription factor sigma(b) in response to environmental stress.
J Bacteriol: 1996, 178(13);3846-53
[PubMed:8682789] [WorldCat.org] [DOI] (P p)

A Dufour, U Voelker, A Voelker, W G Haldenwang
Relative levels and fractionation properties of Bacillus subtilis σ(B) and its regulators during balanced growth and stress.
J Bacteriol: 1996, 178(13);3701-9 sigma
[PubMed:8682769] [WorldCat.org] [DOI] (P p)

A A Wise, C W Price
Four additional genes in the sigB operon of Bacillus subtilis that control activity of the general stress factor sigma B in response to environmental signals.
J Bacteriol: 1995, 177(1);123-33
[PubMed:8002610] [WorldCat.org] [DOI] (P p)