SpoIVFA

• Description: inhibitor of SpoIVFB metalloprotease
  
  

Gene name	spoIVFA
Synonyms	bofB, spoVL
Essential	no
Product	inhibitor of SpoIVFB metalloprotease
Function	control of SigK activation
Gene expression levels in SubtiExpress: spoIVFA
Interactions involving this protein in SubtInteract: SpoIVFA
MW, pI	29 kDa, 7.292
Gene length, protein length	792 bp, 264 aa
Immediate neighbours	spoIVFB, minD
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

sigma factors and their control, sporulation proteins, membrane proteins

This gene is a member of the following regulons

SigE regulon

The gene

Basic information

• Locus tag: BSU27980

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: PDZ protease PubMed

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:
  • the ectodomain of SpoIVFA is cleaved off by SpoIVB (first cleavage) PubMed
  • the domains that inhibits SpoIVFB is cleaved off by CtpB (second cleavage) PubMed

• Modification:

• Cofactors:

• Effectors of protein activity:

• Interactions:
  • SpoIVFB-SpoIVFA, to facilitate the recruitment of BofA to SpoIVFB PubMed
  • BofA-SpoIVFA PubMed
  • SpoIVB-SpoIVFA PubMed
  • CtpB-SpoIVFA PubMed

• Localization:
  • mother cell membrane PubMed
  • integral membrane protein PubMed

Database entries

• Structure:

• UniProt: P26936

• KEGG entry: [3]

• E.C. number:

Additional information

• • the ectodomain of SpoIVFA is cleaved off by SpoIVB (first cleavage) PubMed
  • the domains that inhibits SpoIVFB is cleaved off by CtpB (second cleavage) {{PubMed|24243021}

Expression and regulation

• Operon: spoIVFA-spoIVFB PubMed

• Expression browser: spoIVFA PubMed

• Sigma factor: SigE PubMed

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

• Regulatory mechanism:
  • SpoIIID: transcription repression PubMed

• Additional information:
  • the ectodomain of SpoIVFA is cleaved off by SpoIVB (first cleavage) PubMed
  • the domains that inhibits SpoIVFB is cleaved off by CtpB (second cleavage) PubMed

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)

Thierry Doan, Kathleen A Marquis, David Z Rudner
Subcellular localization of a sporulation membrane protein is achieved through a network of interactions along and across the septum.
Mol Microbiol: 2005, 55(6);1767-81
[PubMed:15752199] [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)

Patrick Eichenberger, Masaya Fujita, Shane T Jensen, Erin M Conlon, David Z Rudner, Stephanie T Wang, Caitlin Ferguson, Koki Haga, Tsutomu Sato, Jun S Liu, Richard Losick
The program of gene transcription for a single differentiating cell type during sporulation in Bacillus subtilis.
PLoS Biol: 2004, 2(10);e328
[PubMed:15383836] [WorldCat.org] [DOI] (I p)

Tran C Dong, Simon M Cutting
The PDZ domain of the SpoIVB transmembrane signaling protein enables cis-trans interactions involving multiple partners leading to the activation of the pro-sigmaK processing complex in Bacillus subtilis.
J Biol Chem: 2004, 279(42);43468-78
[PubMed:15292188] [WorldCat.org] [DOI] (P p)

Tran C Dong, Simon M Cutting
SpoIVB-mediated cleavage of SpoIVFA could provide the intercellular signal to activate processing of Pro-sigmaK in Bacillus subtilis.
Mol Microbiol: 2003, 49(5);1425-34
[PubMed:12940997] [WorldCat.org] [DOI] (P p)

David Z Rudner, Richard Losick
A sporulation membrane protein tethers the pro-sigmaK processing enzyme to its inhibitor and dictates its subcellular localization.
Genes Dev: 2002, 16(8);1007-18
[PubMed:11959848] [WorldCat.org] [DOI] (P p)

O Resnekov, R Losick
Negative regulation of the proteolytic activation of a developmental transcription factor in Bacillus subtilis.
Proc Natl Acad Sci U S A: 1998, 95(6);3162-7
[PubMed:9501233] [WorldCat.org] [DOI] (P p)

O Resnekov, S Alper, R Losick
Subcellular localization of proteins governing the proteolytic activation of a developmental transcription factor in Bacillus subtilis.
Genes Cells: 1996, 1(6);529-42
[PubMed:9078383] [WorldCat.org] [DOI] (P p)

E Ricca, S Cutting, R Losick
Characterization of bofA, a gene involved in intercompartmental regulation of pro-sigma K processing during sporulation in Bacillus subtilis.
J Bacteriol: 1992, 174(10);3177-84
[PubMed:1577688] [WorldCat.org] [DOI] (P p)

S Cutting, S Roels, R Losick
Sporulation operon spoIVF and the characterization of mutations that uncouple mother-cell from forespore gene expression in Bacillus subtilis.
J Mol Biol: 1991, 221(4);1237-56
[PubMed:1942049] [WorldCat.org] [DOI] (P p)

S Cutting, V Oke, A Driks, R Losick, S Lu, L Kroos
A forespore checkpoint for mother cell gene expression during development in B. subtilis.
Cell: 1990, 62(2);239-50
[PubMed:2115401] [WorldCat.org] [DOI] (P p)