CtpB

• Description: carboxy-terminal processing serine protease, cleaves SpoIVFA, this results in processing of pro-SigK
  
  

Gene name	ctpB
Synonyms	yvjB
Essential	no
Product	carboxy-terminal processing serine protease, cleaves SpoIVFA
Function	control of SigK activation
MW, pI	52 kDa, 8.641
Gene length, protein length	1440 bp, 480 aa
Immediate neighbours	swrAA, ftsX
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: BSU35240

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

Categories containing this gene/protein

proteolysis, sigma factors and their control, sporulation proteins

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s): CtpA

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• UniProt: O35002

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: ctpB (according to DBTBS)

• Sigma factor: SigE PubMed, SigG PubMed

• Regulation: expressed during sporulation (SigE, SigG) PubMed

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Nathalie Campo, David Z Rudner
SpoIVB and CtpB are both forespore signals in the activation of the sporulation transcription factor sigmaK in Bacillus subtilis.
J Bacteriol: 2007, 189(16);6021-7
[PubMed:17557826] [WorldCat.org] [DOI] (P p)

Nathalie Campo, David Z Rudner
A branched pathway governing the activation of a developmental transcription factor by regulated intramembrane proteolysis.
Mol Cell: 2006, 23(1);25-35
[PubMed:16818230] [WorldCat.org] [DOI] (P p)

Stephanie T Wang, Barbara Setlow, Erin M Conlon, Jessica L Lyon, Daisuke Imamura, Tsutomu Sato, Peter Setlow, Richard Losick, Patrick Eichenberger
The forespore line of gene expression in Bacillus subtilis.
J Mol Biol: 2006, 358(1);16-37
[PubMed:16497325] [WorldCat.org] [DOI] (P 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)

Qi Pan, Richard Losick, David Z Rudner
A second PDZ-containing serine protease contributes to activation of the sporulation transcription factor sigmaK in Bacillus subtilis.
J Bacteriol: 2003, 185(20);6051-6
[PubMed:14526016] [WorldCat.org] [DOI] (P p)