McpB

• Description: methyl-accepting chemotaxis protein, receptor for asparagine
  
  

Gene name	mcpB
Synonyms
Essential	no
Product	methyl-accepting chemotaxis protein
Function	control of chemotaxis
MW, pI	71 kDa, 5.13
Gene length, protein length	1986 bp, 662 aa
Immediate neighbours	tlpA, tgl
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

motility and chemotaxis, membrane proteins

This gene is a member of the following regulons

SigD regulon

The gene

Basic information

• Locus tag: BSU31260

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: K(D) for asparagine: 14 myM PubMed

• Domains:

• Modification: methylated at residues Gln371, Glu630, and Glu637 PubMed

• Cofactor(s):

• Effectors of protein activity: asparagine (binds to the part of McpB that is exposed to the exterior) PubMed

• Interactions: CheA-McpB PubMed, McpB-CheC PubMed

• Localization:
  • cell membrane PubMed
  • localized at the cell poles, but in the presence of high asparagine concentration there is a reversible re-localization to the sides of the cell (lateral clusters) PubMed

Database entries

• Structure:

• UniProt: P39215

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: mcpB PubMed

• Sigma factor: SigD PubMed

• Regulation:

• Regulatory mechanism:

• Additional information:
  • in minimal medium, McpB is present with 6,200 +/- 1,900 molecules per cell PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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] [WorldCat.org] [DOI] (I p)

Kang Wu, Hanna E Walukiewicz, George D Glekas, George W Ordal, Christopher V Rao
Attractant binding induces distinct structural changes to the polar and lateral signaling clusters in Bacillus subtilis chemotaxis.
J Biol Chem: 2011, 286(4);2587-95
[PubMed:21098025] [WorldCat.org] [DOI] (I p)

George D Glekas, Joseph R Cates, Theodore M Cohen, Christopher V Rao, George W Ordal
Site-specific methylation in Bacillus subtilis chemotaxis: effect of covalent modifications to the chemotaxis receptor McpB.
Microbiology (Reading): 2011, 157(Pt 1);56-65
[PubMed:20864474] [WorldCat.org] [DOI] (I p)

George D Glekas, Richard M Foster, Joseph R Cates, Jeffrey A Estrella, Michael J Wawrzyniak, Christopher V Rao, George W Ordal
A PAS domain binds asparagine in the chemotaxis receptor McpB in Bacillus subtilis.
J Biol Chem: 2010, 285(3);1870-8
[PubMed:19864420] [WorldCat.org] [DOI] (I p)

Hannes Hahne, Susanne Wolff, Michael Hecker, Dörte Becher
From complementarity to comprehensiveness--targeting the membrane proteome of growing Bacillus subtilis by divergent approaches.
Proteomics: 2008, 8(19);4123-36
[PubMed:18763711] [WorldCat.org] [DOI] (I p)

Hendrik Szurmant, Michael W Bunn, Stephen H Cho, George W Ordal
Ligand-induced conformational changes in the Bacillus subtilis chemoreceptor McpB determined by disulfide crosslinking in vivo.
J Mol Biol: 2004, 344(4);919-28
[PubMed:15544802] [WorldCat.org] [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] [WorldCat.org] [DOI] (P p)

Michael W Bunn, George W Ordal
Transmembrane organization of the Bacillus subtilis chemoreceptor McpB deduced by cysteine disulfide crosslinking.
J Mol Biol: 2003, 331(4);941-9
[PubMed:12909020] [WorldCat.org] [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] [WorldCat.org] [DOI] (P p)

J R Kirby, C J Kristich, M M Saulmon, M A Zimmer, L F Garrity, I B Zhulin, G W Ordal
CheC is related to the family of flagellar switch proteins and acts independently from CheD to control chemotaxis in Bacillus subtilis.
Mol Microbiol: 2001, 42(3);573-85
[PubMed:11722727] [WorldCat.org] [DOI] (P p)

M A Zimmer, J Tiu, M A Collins, G W Ordal
Selective methylation changes on the Bacillus subtilis chemotaxis receptor McpB promote adaptation.
J Biol Chem: 2000, 275(32);24264-72
[PubMed:10825179] [WorldCat.org] [DOI] (P p)

J R Kirby, M M Saulmon, C J Kristich, G W Ordal
CheY-dependent methylation of the asparagine receptor, McpB, during chemotaxis in Bacillus subtilis.
J Biol Chem: 1999, 274(16);11092-100
[PubMed:10196193] [WorldCat.org] [DOI] (P p)

J R Kirby, C J Kristich, S L Feinberg, G W Ordal
Methanol production during chemotaxis to amino acids in Bacillus subtilis.
Mol Microbiol: 1997, 24(4);869-78
[PubMed:9194713] [WorldCat.org] [DOI] (P p)

D W Hanlon, G W Ordal
Cloning and characterization of genes encoding methyl-accepting chemotaxis proteins in Bacillus subtilis.
J Biol Chem: 1994, 269(19);14038-46
[PubMed:8188684] [WorldCat.org] (P p)

D W Hanlon, C Ying, G W Ordal
Purification and reconstitution of the methyl-accepting chemotaxis proteins from Bacillus subtilis.
Biochim Biophys Acta: 1993, 1158(3);345-51
[PubMed:8251536] [WorldCat.org] [DOI] (P p)

M S Thoelke, J M Casper, G W Ordal
Methyl group turnover on methyl-accepting chemotaxis proteins during chemotaxis by Bacillus subtilis.
J Biol Chem: 1990, 265(4);1928-32
[PubMed:2105313] [WorldCat.org] (P p)

M S Thoelke, J R Kirby, G W Ordal
Novel methyl transfer during chemotaxis in Bacillus subtilis.
Biochemistry: 1989, 28(13);5585-9
[PubMed:2505839] [WorldCat.org] [DOI] (P p)

J A Ahlgren, G W Ordal
Methyl esterification of glutamic acid residues of methyl-accepting chemotaxis proteins in Bacillus subtilis.
Biochem J: 1983, 213(3);759-63
[PubMed:6137212] [WorldCat.org] [DOI] (P p)