CotB

• Description: spore coat protein (outer)
  
  

Gene name	cotB
Synonyms
Essential	no
Product	spore coat protein (outer)
Function	resistance of the spore
MW, pI	42 kDa, 9.831
Gene length, protein length	1140 bp, 380 aa
Immediate neighbours	ywrJ, cotH
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

sporulation proteins

This gene is a member of the following regulons

GerE regulon, GerR regulon, SigK regulon

The gene

Basic information

• Locus tag: BSU36050

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:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions: CotB-CotG PubMed

• Localization: outer spore coat, at the middle of the spore as a ring- or spiral-like structure PubMed

Database entries

• Structure:

• UniProt: P07789

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon:

• Sigma factor: SigK PubMed

• Regulation:
  • expressed late during sporulation in the mother cell (SigK, GerE, GerR) PubMed

• Regulatory mechanism:
  • GerE: transcription activation PubMed
  • GerR: transcription activation PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Giuseppina Cangiano, Antonio Mazzone, Loredana Baccigalupi, Rachele Isticato, Patrick Eichenberger, Maurilio De Felice, Ezio Ricca
Direct and indirect control of late sporulation genes by GerR of Bacillus subtilis.
J Bacteriol: 2010, 192(13);3406-13
[PubMed:20435725] [WorldCat.org] [DOI] (I p)

Daisuke Imamura, Ritsuko Kuwana, Hiromu Takamatsu, Kazuhito Watabe
Localization of proteins to different layers and regions of Bacillus subtilis spore coats.
J Bacteriol: 2010, 192(2);518-24
[PubMed:19933362] [WorldCat.org] [DOI] (I p)

Leif Steil, Mónica Serrano, Adriano O Henriques, Uwe Völker
Genome-wide analysis of temporally regulated and compartment-specific gene expression in sporulating cells of Bacillus subtilis.
Microbiology (Reading): 2005, 151(Pt 2);399-420
[PubMed:15699190] [WorldCat.org] [DOI] (P p)

Rita Zilhão, Mónica Serrano, Rachele Isticato, Ezio Ricca, Charles P Moran, Adriano O Henriques
Interactions among CotB, CotG, and CotH during assembly of the Bacillus subtilis spore coat.
J Bacteriol: 2004, 186(4);1110-9
[PubMed:14762006] [WorldCat.org] [DOI] (P p)

L Zheng, R Halberg, S Roels, H Ichikawa, L Kroos, R Losick
Sporulation regulatory protein GerE from Bacillus subtilis binds to and can activate or repress transcription from promoters for mother-cell-specific genes.
J Mol Biol: 1992, 226(4);1037-50
[PubMed:1518043] [WorldCat.org] [DOI] (P p)

L B Zheng, R Losick
Cascade regulation of spore coat gene expression in Bacillus subtilis.
J Mol Biol: 1990, 212(4);645-60
[PubMed:1691789] [WorldCat.org] [DOI] (P p)

W Donovan, L B Zheng, K Sandman, R Losick
Genes encoding spore coat polypeptides from Bacillus subtilis.
J Mol Biol: 1987, 196(1);1-10
[PubMed:2821284] [WorldCat.org] [DOI] (P p)