FliY

• Description: flagellar motor switch protein
  
  

Gene name	fliY
Synonyms	cheD
Essential	no
Product	flagellar motor switch protein
Function	movement and chemotaxis
Gene expression levels in SubtiExpress: fliY
MW, pI	40 kDa, 4.117
Gene length, protein length	1134 bp, 378 aa
Immediate neighbours	fliM, cheY
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

motility and chemotaxis, membrane proteins, phosphoproteins

This gene is a member of the following regulons

CodY regulon, DegU regulon, SigD regulon, Spo0A regulon

The gene

Basic information

• Locus tag: BSU16320

Database entries

• BsubCyc: BSU16320

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: fliN/mopA/spaO family (according to Swiss-Prot) cheC family

• Paralogous protein(s): CheC, FliM

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:
  • phosphorylated on Arg-251 PubMed

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: cell membrane (according to Swiss-Prot)

Database entries

• BsubCyc: BSU16320

• Structure:

• UniProt: P24073

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon:
  • flgB-flgC-fliE-fliF-fliG-fliH-fliI-fliJ-ylxF-fliK-flgD-flgE-fliL-fliM-fliY-cheY-fliZ-fliP-fliQ-fliR-flhB-flhA-flhF-flhG-cheB-cheA-cheW-cheC-cheD-sigD-swrB PubMed
  • ylxF-fliK-flgD-flgE-fliL-fliM-fliY-cheY-fliZ-fliP-fliQ-fliR-flhB-flhA-flhF-flhG-cheB-cheA-cheW-cheC-cheD-sigD-swrB PubMed

• Expression browser: fliY PubMed

• Sigma factor:
  • flgB: SigA PubMed, SigD PubMed
  • ylxF: SigD PubMed

• Regulation:
  • repressed under conditions that trigger sporulation (Spo0A) PubMed

• Regulatory mechanism:
  • Spo0A: transcription repression PubMed
  • CodY: transcription repression PubMed
  • DegU (non-phosphorylated): transcription activation PubMed
  • DegU-P: transcription repression PubMed
  • DegU-P in complex with SwrA: transcription activation PubMed

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 1488 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 1885 PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium, exponential phase): 850 PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium, early stationary phase after glucose exhaustion): 900 PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium, late stationary phase after glucose exhaustion): 713 PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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

Alexander K W Elsholz, Kürsad Turgay, Stephan Michalik, Bernd Hessling, Katrin Gronau, Dan Oertel, Ulrike Mäder, Jörg Bernhardt, Dörte Becher, Michael Hecker, Ulf Gerth
Global impact of protein arginine phosphorylation on the physiology of Bacillus subtilis.
Proc Natl Acad Sci U S A: 2012, 109(19);7451-6
[PubMed:22517742] [WorldCat.org] [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] [WorldCat.org] [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] [WorldCat.org] [DOI] (P p)

Hendrik Szurmant, Travis J Muff, George W Ordal
Bacillus subtilis CheC and FliY are members of a novel class of CheY-P-hydrolyzing proteins in the chemotactic signal transduction cascade.
J Biol Chem: 2004, 279(21);21787-92
[PubMed:14749334] [WorldCat.org] [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] [WorldCat.org] [DOI] (P p)

Hendrik Szurmant, Michael W Bunn, Vincent J Cannistraro, George W Ordal
Bacillus subtilis hydrolyzes CheY-P at the location of its action, the flagellar switch.
J Biol Chem: 2003, 278(49);48611-6
[PubMed:12920116] [WorldCat.org] [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] [WorldCat.org] [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] [WorldCat.org] [DOI] (P p)

D S Bischoff, G W Ordal
Identification and characterization of FliY, a novel component of the Bacillus subtilis flagellar switch complex.
Mol Microbiol: 1992, 6(18);2715-23
[PubMed:1447979] [WorldCat.org] [DOI] (P p)