EpsA
- Description: extracellular polysaccharide synthesis, putative transmembrane modulator of EpsB activity, might activate EpsB autophosphorylation and substrate phosphorylation
Gene name | epsA |
Synonyms | yveK |
Essential | no |
Product | unknown |
Function | biofilm formation |
Gene expression levels in SubtiExpress: epsA | |
Interactions involving this protein in SubtInteract: EpsA | |
Regulation of this protein in SubtiPathways: epsA | |
MW, pI | 25 kDa, 6.071 |
Gene length, protein length | 702 bp, 234 aa |
Immediate neighbours | epsB, slrR |
Sequences | Protein DNA DNA_with_flanks |
Genetic context This image was kindly provided by SubtiList
| |
Expression at a glance PubMed |
Contents
Categories containing this gene/protein
protein modification, biofilm formation, membrane proteins
This gene is a member of the following regulons
AbrB regulon, RemA regulon, SinR regulon
The gene
Basic information
- Locus tag: BSU34370
Phenotypes of a mutant
Database entries
- BsubCyc: BSU34370
- DBTBS entry: [1]
- SubtiList entry: [2]
Additional information
The protein
Basic information/ Evolution
- Catalyzed reaction/ biological activity:
- Protein family: cpsC/capA family (according to Swiss-Prot)
- Paralogous protein(s): TkmA
Extended information on the protein
- Kinetic information:
- Modification:
- Effectors of protein activity:
- Localization: cell membrane (according to Swiss-Prot)
Database entries
- BsubCyc: BSU34370
- Structure:
- UniProt: P71050
- KEGG entry: [3]
- E.C. number:
Additional information
Expression and regulation
- Regulatory mechanism:
- Additional information:
- induction by sequestration of SinR by SinI or SlrA PubMed or by SlrR PubMed
- the epsA-epsB-epsC-epsD-epsE-epsF-epsG-epsH-epsI-epsJ-epsK-epsL-epsM-epsN-epsO operon is not expressed in a ymdB mutant PubMed
- the amount of the mRNA is substantially decreased upon depletion of RNase Y (this is likely due to the increased stability of the sinR mRNA) PubMed
Biological materials
- Mutant:
- GP1517 (aphA3) PubMed, available in Jörg Stülke's lab
- GP1519 (epsA-epsB, aphA3) PubMed, available in Jörg Stülke's lab
- GP1567 epsA::aphA3 tkmA::spc PubMed, available in Jörg Stülke's lab
- Expression vector:
- lacZ fusion:
- GFP fusion: GP1569 epsA-gfp (spc), available in Jörg Stülke's lab
- two-hybrid system: B. pertussis adenylate cyclase-based bacterial two hybrid system (BACTH) PubMed, available in Jörg Stülke's lab
- Antibody:
- FLAG-tag construct: GP1526 epsA-FLAG 3x spc (based on pGP1331) PubMed, available in Jörg Stülke's lab
Labs working on this gene/protein
Richard Losick, Harvard Univ., Cambridge, USA homepage
Your additional remarks
References
Reviews
Original publications
Alexander K W Elsholz, Sarah A Wacker, Richard Losick
Self-regulation of exopolysaccharide production in Bacillus subtilis by a tyrosine kinase.
Genes Dev: 2014, 28(15);1710-20
[PubMed:25085422]
[WorldCat.org]
[DOI]
(I p)
Jan Gerwig, Taryn B Kiley, Katrin Gunka, Nicola Stanley-Wall, Jörg Stülke
The protein tyrosine kinases EpsB and PtkA differentially affect biofilm formation in Bacillus subtilis.
Microbiology (Reading): 2014, 160(Pt 4);682-691
[PubMed:24493247]
[WorldCat.org]
[DOI]
(I p)
Jared T Winkelman, Anna C Bree, Ashley R Bate, Patrick Eichenberger, Richard L Gourse, Daniel B Kearns
RemA is a DNA-binding protein that activates biofilm matrix gene expression in Bacillus subtilis.
Mol Microbiol: 2013, 88(5);984-97
[PubMed:23646920]
[WorldCat.org]
[DOI]
(I p)
Christine Diethmaier, Nico Pietack, Katrin Gunka, Christoph Wrede, Martin Lehnik-Habrink, Christina Herzberg, Sebastian Hübner, Jörg Stülke
A novel factor controlling bistability in Bacillus subtilis: the YmdB protein affects flagellin expression and biofilm formation.
J Bacteriol: 2011, 193(21);5997-6007
[PubMed:21856853]
[WorldCat.org]
[DOI]
(I p)
Martin Lehnik-Habrink, Marc Schaffer, Ulrike Mäder, Christine Diethmaier, Christina Herzberg, Jörg Stülke
RNA processing in Bacillus subtilis: identification of targets of the essential RNase Y.
Mol Microbiol: 2011, 81(6);1459-73
[PubMed:21815947]
[WorldCat.org]
[DOI]
(I p)
Onuma Chumsakul, Hiroki Takahashi, Taku Oshima, Takahiro Hishimoto, Shigehiko Kanaya, Naotake Ogasawara, Shu Ishikawa
Genome-wide binding profiles of the Bacillus subtilis transition state regulator AbrB and its homolog Abh reveals their interactive role in transcriptional regulation.
Nucleic Acids Res: 2011, 39(2);414-28
[PubMed:20817675]
[WorldCat.org]
[DOI]
(I p)
Yunrong Chai, Thomas Norman, Roberto Kolter, Richard Losick
An epigenetic switch governing daughter cell separation in Bacillus subtilis.
Genes Dev: 2010, 24(8);754-65
[PubMed:20351052]
[WorldCat.org]
[DOI]
(I p)
Kazuo Kobayashi
SlrR/SlrA controls the initiation of biofilm formation in Bacillus subtilis.
Mol Microbiol: 2008, 69(6);1399-410
[PubMed:18647168]
[WorldCat.org]
[DOI]
(I p)
Yunrong Chai, Frances Chu, Roberto Kolter, Richard Losick
Bistability and biofilm formation in Bacillus subtilis.
Mol Microbiol: 2008, 67(2);254-63
[PubMed:18047568]
[WorldCat.org]
[DOI]
(P p)
Frances Chu, Daniel B Kearns, Steven S Branda, Roberto Kolter, Richard Losick
Targets of the master regulator of biofilm formation in Bacillus subtilis.
Mol Microbiol: 2006, 59(4);1216-28
[PubMed:16430695]
[WorldCat.org]
[DOI]
(P p)
Daniel B Kearns, Frances Chu, Steven S Branda, Roberto Kolter, Richard Losick
A master regulator for biofilm formation by Bacillus subtilis.
Mol Microbiol: 2005, 55(3);739-49
[PubMed:15661000]
[WorldCat.org]
[DOI]
(P p)