Difference between revisions of "ComX"
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* '''Operon:''' ''[[comQ]]-[[comX]]'' {{PubMed|1715859}} | * '''Operon:''' ''[[comQ]]-[[comX]]'' {{PubMed|1715859}} | ||
| − | * '''[ | + | * '''Expression browser:''' [http://genome.jouy.inra.fr/cgi-bin/seb/viewdetail.py?id=comX_3255853_3256020_-1 comX] {{PubMed|22383849}} |
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| + | * '''Sigma factor:''' [[SigA]] {{PubMed|1715859}} | ||
* '''Regulation:''' | * '''Regulation:''' | ||
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* '''Regulatory mechanism:''' | * '''Regulatory mechanism:''' | ||
| − | * '''Additional information:''' | + | * '''Additional information:''' |
=Biological materials = | =Biological materials = | ||
Revision as of 16:27, 16 April 2012
- Description: competence pheromone precursor, transfers cell density signal to ComP; triggers the production of surfactin
| Gene name | comX |
| Synonyms | |
| Essential | no |
| Product | competence pheromone precursor |
| Function | quorum sensing |
| MW, pI | 6 kDa, 4.358 |
| Gene length, protein length | 165 bp, 55 aa |
| Immediate neighbours | comP, comQ |
| Get the DNA and protein sequences (Barbe et al., 2009) | |
Genetic context 
This image was kindly provided by SubtiList
| |
Contents
Categories containing this gene/protein
genetic competence, quorum sensing
This gene is a member of the following regulons
The gene
Basic information
- Locus tag: BSU31700
Phenotypes of a mutant
Database entries
- DBTBS entry: [1]
- SubtiList entry: [2]
Additional information
The protein
Basic information/ Evolution
- Catalyzed reaction/ biological activity:
- Protein family:
- Paralogous protein(s):
Extended information on the protein
- Kinetic information:
- Domains:
- Modification: is synthesized as an inactive precursor, cleaved, and modified (isoprenylated) by ComQ prior to excretion
- Cofactor(s):
- Effectors of protein activity:
- Localization:
- secreted (according to Swiss-Prot)
Database entries
- Structure:
- UniProt: P45453
- KEGG entry: [3]
- E.C. number:
Additional information
Expression and regulation
- Regulation:
- Regulatory mechanism:
- Additional information:
Biological materials
- Mutant:
- Expression vector:
- lacZ fusion:
- GFP fusion:
- two-hybrid system:
- Antibody:
Labs working on this gene/protein
Your additional remarks
The ComX --> surfactin signaling pathway is an example for paracrine signaling in bacteria
References
Reviews
Elizabeth Anne Shank, Roberto Kolter
Extracellular signaling and multicellularity in Bacillus subtilis.
Curr Opin Microbiol: 2011, 14(6);741-7
[PubMed:22024380]
[WorldCat.org]
[DOI]
(I p)
Original publications
Additional publications: PubMed
Daniel López, Hera Vlamakis, Richard Losick, Roberto Kolter
Paracrine signaling in a bacterium.
Genes Dev: 2009, 23(14);1631-8
[PubMed:19605685]
[WorldCat.org]
[DOI]
(I p)
Kassem Hamze, Daria Julkowska, Sabine Autret, Krzysztof Hinc, Krzysztofa Nagorska, Agnieszka Sekowska, I Barry Holland, Simone J Séror
Identification of genes required for different stages of dendritic swarming in Bacillus subtilis, with a novel role for phrC.
Microbiology (Reading): 2009, 155(Pt 2);398-412
[PubMed:19202088]
[WorldCat.org]
[DOI]
(P p)
Masahiro Okada, Hisao Yamaguchi, Isao Sato, Soo Jeong Cho, David Dubnau, Youji Sakagami
Structure-activity relationship studies on quorum sensing ComX(RO-E-2) pheromone.
Bioorg Med Chem Lett: 2007, 17(6);1705-7
[PubMed:17240141]
[WorldCat.org]
[DOI]
(P p)
Masahiro Okada, Isao Sato, Soo Jeong Cho, Hidehisa Iwata, Toshihiko Nishio, David Dubnau, Youji Sakagami
Structure of the Bacillus subtilis quorum-sensing peptide pheromone ComX.
Nat Chem Biol: 2005, 1(1);23-4
[PubMed:16407988]
[WorldCat.org]
[DOI]
(P p)
Masahiro Okada, Isao Sato, Soo Jeong Cho, Yoshihiro Suzuki, Makoto Ojika, David Dubnau, Youji Sakagami
Towards structural determination of the ComX pheromone: synthetic studies on peptides containing geranyltryptophan.
Biosci Biotechnol Biochem: 2004, 68(11);2374-87
[PubMed:15564679]
[WorldCat.org]
[DOI]
(P p)
M Ansaldi, D Dubnau
Diversifying selection at the Bacillus quorum-sensing locus and determinants of modification specificity during synthesis of the ComX pheromone.
J Bacteriol: 2004, 186(1);15-21
[PubMed:14679219]
[WorldCat.org]
[DOI]
(P p)
Mireille Ansaldi, Darja Marolt, Tina Stebe, Ines Mandic-Mulec, David Dubnau
Specific activation of the Bacillus quorum-sensing systems by isoprenylated pheromone variants.
Mol Microbiol: 2002, 44(6);1561-73
[PubMed:12067344]
[WorldCat.org]
[DOI]
(P p)
P Tortosa, L Logsdon, B Kraigher, Y Itoh, I Mandic-Mulec, D Dubnau
Specificity and genetic polymorphism of the Bacillus competence quorum-sensing system.
J Bacteriol: 2001, 183(2);451-60
[PubMed:11133937]
[WorldCat.org]
[DOI]
(P p)
Y Weinrauch, T Msadek, F Kunst, D Dubnau
Sequence and properties of comQ, a new competence regulatory gene of Bacillus subtilis.
J Bacteriol: 1991, 173(18);5685-93
[PubMed:1715859]
[WorldCat.org]
[DOI]
(P p)
