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  • Description: MCP-glutamate methylesterase / two-component response regulator-like

Gene name cheB
Synonyms cheL
Essential no
Product MCP-glutamate methylesterase / two-component response regulator-like
Function motility and chemotaxis
Gene expression levels in SubtiExpress: cheB
Interactions involving this protein in SubtInteract: CheB
MW, pI 38 kDa, 8.119
Gene length, protein length 1071 bp, 357 aa
Immediate neighbours flhG, cheA
Sequences Protein DNA DNA_with_flanks
Genetic context
CheB context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
CheB expression.png

Categories containing this gene/protein

motility and chemotaxis, phosphoproteins

This gene is a member of the following regulons

CodY regulon, DegU regulon, SigD regulon, Spo0A regulon

The gene

Basic information

  • Locus tag: BSU16420

Phenotypes of a mutant

  • not essential for pellicle biofilm formation and mutant has similar fitness to the wild-type strain when competed during pellicle formation PubMed

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: Protein L-glutamate O(5)-methyl ester + H2O = protein L-glutamate + methanol (according to Swiss-Prot)
  • Protein family:
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification: phosphorylated on a Asp residue by CheA PubMed
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure:
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Additional information:
    • in minimal medium, CheB is present with 2,100 +/- 400 molecules per cell PubMed
    • number of protein molecules per cell (minimal medium with glucose and ammonium): 92 PubMed

Biological materials

  • Mutant:
    • DS7306 (marker-less in NCIB3610) PubMed
    • TB19 amyE::Phy-sfgfp (marker-less in NCIB3610 with constitutive expressed sfgfp) PubMed
    • TB213 amyE::Phy-mKATE2 (marker-less in NCIB3610 with constitutive expressed mKATE2) PubMed
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks



Gerald L Hazelbauer, Wing-Cheung Lai
Bacterial chemoreceptors: providing enhanced features to two-component signaling.
Curr. Opin. Microbiol.: 2010, 13(2);124-32
[PubMed:20122866] [] [DOI] (I p)

Original publications

Theresa Hölscher, Benjamin Bartels, Yu-Cheng Lin, Ramses Gallegos-Monterrosa, Alexa Price-Whelan, Roberto Kolter, Lars E P Dietrich, Ákos T Kovács
Motility, Chemotaxis and Aerotaxis Contribute to Competitiveness during Bacterial Pellicle Biofilm Development.
J. Mol. Biol.: 2015, 427(23);3695-3708
[PubMed:26122431] [] [DOI] (I p)

Rebecca A Calvo, Daniel B Kearns
FlgM is secreted by the flagellar export apparatus in Bacillus subtilis.
J. Bacteriol.: 2015, 197(1);81-91
[PubMed:25313396] [] [DOI] (I p)

Serena Mordini, Cecilia Osera, Simone Marini, Francesco Scavone, Riccardo Bellazzi, Alessandro Galizzi, Cinzia Calvio
The role of SwrA, DegU and P(D3) in fla/che expression in B. subtilis.
PLoS ONE: 2013, 8(12);e85065
[PubMed:24386445] [] [DOI] (I e)

Vincent J Cannistraro, George D Glekas, Christopher V Rao, George W Ordal
Cellular stoichiometry of the chemotaxis proteins in Bacillus subtilis.
J. Bacteriol.: 2011, 193(13);3220-7
[PubMed:21515776] [] [DOI] (I p)

Kazuo Kobayashi
Gradual activation of the response regulator DegU controls serial expression of genes for flagellum formation and biofilm formation in Bacillus subtilis.
Mol. Microbiol.: 2007, 66(2);395-409
[PubMed:17850253] [] [DOI] (P p)

H Werhane, P Lopez, M Mendel, M Zimmer, G W Ordal, L M Márquez-Magaña
The last gene of the fla/che operon in Bacillus subtilis, ylxL, is required for maximal sigmaD function.
J. Bacteriol.: 2004, 186(12);4025-9
[PubMed:15175317] [] [DOI] (P p)

Michael W Bunn, George W Ordal
Receptor conformational changes enhance methylesterase activity during chemotaxis by Bacillus subtilis.
Mol. Microbiol.: 2004, 51(3);721-8
[PubMed:14731274] [] [DOI] (P p)

Virginie Molle, Masaya Fujita, Shane T Jensen, Patrick Eichenberger, José E González-Pastor, Jun S Liu, Richard Losick
The Spo0A regulon of Bacillus subtilis.
Mol. Microbiol.: 2003, 50(5);1683-701
[PubMed:14651647] [] [DOI] (P p)

Michael A Zimmer, Hendrik Szurmant, Michael M Saulmon, Marissa A Collins, Jason S Bant, George W Ordal
The role of heterologous receptors in McpB-mediated signalling in Bacillus subtilis chemotaxis.
Mol. Microbiol.: 2002, 45(2);555-68
[PubMed:12123464] [] [DOI] (P p)

E Karatan, M M Saulmon, M W Bunn, G W Ordal
Phosphorylation of the response regulator CheV is required for adaptation to attractants during Bacillus subtilis chemotaxis.
J. Biol. Chem.: 2001, 276(47);43618-26
[PubMed:11553614] [] [DOI] (P p)

J R Kirby, T B Niewold, S Maloy, G W Ordal
CheB is required for behavioural responses to negative stimuli during chemotaxis in Bacillus subtilis.
Mol. Microbiol.: 2000, 35(1);44-57
[PubMed:10632876] [] [DOI] (P p)

W Estacio, S S Anna-Arriola, M Adedipe, L M Márquez-Magaña
Dual promoters are responsible for transcription initiation of the fla/che operon in Bacillus subtilis.
J. Bacteriol.: 1998, 180(14);3548-55
[PubMed:9657996] [] [DOI] (P p)

L M Márquez-Magaña, M J Chamberlin
Characterization of the sigD transcription unit of Bacillus subtilis.
J. Bacteriol.: 1994, 176(8);2427-34
[PubMed:8157612] [] [DOI] (P p)

D S Bischoff, G W Ordal
Sequence and characterization of Bacillus subtilis CheB, a homolog of Escherichia coli CheY, and its role in a different mechanism of chemotaxis.
J. Biol. Chem.: 1991, 266(19);12301-5
[PubMed:1905718] [] (P p)