SpoIIIAE

• Description: component of the SpoIIIA-SpoIIQ type III secretion system residing in the forespore membrane, required for SigG activation
  
  

Gene name	spoIIIAE
Synonyms
Essential	no
Product	component of a type III secretion system
Function	activation of SigG
Gene expression levels in SubtiExpress: spoIIIAE
Interactions involving this protein in SubtInteract: SpoIIIAE
MW, pI	43 kDa, 6.587
Gene length, protein length	1215 bp, 405 aa
Immediate neighbours	spoIIIAF, spoIIIAD
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed 500px

Categories containing this gene/protein

protein secretion, sporulation proteins, membrane proteins

This gene is a member of the following regulons

SigE regulon, SpoIIID regulon

The gene

Basic information

• Locus tag: BSU24390

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:
  • SpoIIIAE-SpoIIIJ (in membrane)PubMed

• Localization:
  • membrane protein PubMed, insertion into the membrane requires SpoIIIJ PubMed

Database entries

• Structure:

• UniProt: P49782

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: spoIIIAA-spoIIIAB-spoIIIAC-spoIIIAD-spoIIIAE-spoIIIAF-spoIIIAG-spoIIIAH PubMed

• Expression browser: spoIIIAE PubMed

• Sigma factor: SigE PubMed

• Regulation: expressed during sporulation in the mother cell (SigE) PubMed, switched off by SpoIIID PubMed

• Regulatory mechanism: SpoIIID: transcription repression PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

Labs working on this gene/protein

Richard Losick, Harvard University, Cambridge, USA homepage

Adriano Henriques, Lisbon, Portugal homepage

References

Thierry Doan, Cecile Morlot, Jeffrey Meisner, Monica Serrano, Adriano O Henriques, Charles P Moran, David Z Rudner
Novel secretion apparatus maintains spore integrity and developmental gene expression in Bacillus subtilis.
PLoS Genet: 2009, 5(7);e1000566
[PubMed:19609349] [WorldCat.org] [DOI] (I p)

Mónica Serrano, Filipe Vieira, Charles P Moran, Adriano O Henriques
Processing of a membrane protein required for cell-to-cell signaling during endospore formation in Bacillus subtilis.
J Bacteriol: 2008, 190(23);7786-96
[PubMed:18820020] [WorldCat.org] [DOI] (I p)

Amy H Camp, Richard Losick
A novel pathway of intercellular signalling in Bacillus subtilis involves a protein with similarity to a component of type III secretion channels.
Mol Microbiol: 2008, 69(2);402-17
[PubMed:18485064] [WorldCat.org] [DOI] (I p)

N Illing, J Errington
The spoIIIA operon of Bacillus subtilis defines a new temporal class of mother-cell-specific sporulation genes under the control of the sigma E form of RNA polymerase.
Mol Microbiol: 1991, 5(8);1927-40
[PubMed:1766372] [WorldCat.org] [DOI] (P p)