IspA

• Description: intracellular serine protease
  
  

Gene name	ispA
Synonyms
Essential	no
Product	intracellular serine protease
Function	protein degradation
Gene expression levels in SubtiExpress: ispA
MW, pI	33 kDa, 4.522
Gene length, protein length	957 bp, 319 aa
Immediate neighbours	metE, rsbRB
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

utilization of nitrogen sources other than amino acids, proteolysis

This gene is a member of the following regulons

CodY regulon

The gene

Basic information

• Locus tag: BSU13190

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: peptidase S8 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: cytoplasm (according to Swiss-Prot)

Database entries

• Structure:

• UniProt: P11018

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: ispA (according to DBTBS)

• Expression browser: ispA PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed during growth in the presence of branched chain amino acids (CodY) PubMed

• Regulatory mechanism:
  • CodY: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Boris R Belitsky, Abraham L Sonenshein
Genome-wide identification of Bacillus subtilis CodY-binding sites at single-nucleotide resolution.
Proc Natl Acad Sci U S A: 2013, 110(17);7026-31
[PubMed:23569278] [WorldCat.org] [DOI] (I p)

Y Koide, A Nakamura, T Uozumi, T Beppu
Cloning and sequencing of the major intracellular serine protease gene of Bacillus subtilis.
J Bacteriol: 1986, 167(1);110-6
[PubMed:3087947] [WorldCat.org] [DOI] (P p)