SipW

• Description: signal peptidase I, required for biofilm formation
  
  

Gene name	sipW
Synonyms	yqhE
Essential	no
Product	signal peptidase I
Function	biofilm formation
Regulation of this protein in SubtiPathways: Biofilm
MW, pI	20 kDa, 5.494
Gene length, protein length	570 bp, 190 aa
Immediate neighbours	tasA, yqxM
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU24630

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Cleavage of hydrophobic, N-terminal signal or leader sequences from secreted and periplasmic proteins (according to Swiss-Prot)

• Protein family: peptidase S26B family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization: secreted (according to Swiss-Prot)

Database entries

• Structure:

• UniProt: P54506

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: yqxM-sipW-tasA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed by SinR PubMed
  • repressed during logrithmic growth (AbrB) PubMed

• Regulatory mechanism:
  • AbrB: transcription repression PubMed
  • SinR: transcription repression PubMed

• Additional information:
  • induction by sequestration of SinR by SinI or SlrA PubMed or by SlrR PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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)

Frances Chu, Daniel B Kearns, Anna McLoon, Yunrong Chai, Roberto Kolter, Richard Losick
A novel regulatory protein governing biofilm formation in Bacillus subtilis.
Mol Microbiol: 2008, 68(5);1117-27
[PubMed:18430133] [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)

Mark A Strauch, Benjamin G Bobay, John Cavanagh, Fude Yao, Angelo Wilson, Yoann Le Breton
Abh and AbrB control of Bacillus subtilis antimicrobial gene expression.
J Bacteriol: 2007, 189(21);7720-32
[PubMed:17720793] [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)

Steven S Branda, José Eduardo González-Pastor, Etienne Dervyn, S Dusko Ehrlich, Richard Losick, Roberto Kolter
Genes involved in formation of structured multicellular communities by Bacillus subtilis.
J Bacteriol: 2004, 186(12);3970-9
[PubMed:15175311] [WorldCat.org] [DOI] (P p)

A G Stöver, A Driks
Regulation of synthesis of the Bacillus subtilis transition-phase, spore-associated antibacterial protein TasA.
J Bacteriol: 1999, 181(17);5476-81
[PubMed:10464223] [WorldCat.org] [DOI] (P p)

M Serrano, R Zilhão, E Ricca, A J Ozin, C P Moran, A O Henriques
A Bacillus subtilis secreted protein with a role in endospore coat assembly and function.
J Bacteriol: 1999, 181(12);3632-43
[PubMed:10368135] [WorldCat.org] [DOI] (P p)

H Tjalsma, A Bolhuis, M L van Roosmalen, T Wiegert, W Schumann, C P Broekhuizen, W J Quax, G Venema, S Bron, J M van Dijl
Functional analysis of the secretory precursor processing machinery of Bacillus subtilis: identification of a eubacterial homolog of archaeal and eukaryotic signal peptidases.
Genes Dev: 1998, 12(15);2318-31
[PubMed:9694797] [WorldCat.org] [DOI] (P p)