SpmB

• Description: spore maturation protein (spore core dehydratation)
  
  

Gene name	spmB
Synonyms	ypuK
Essential	no
Product	spore maturation protein (spore core dehydratation)
Function	germination
MW, pI	18 kDa, 5.496
Gene length, protein length	537 bp, 179 aa
Immediate neighbours	rluB, spmA
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

SigE regulon

The gene

Basic information

• Locus tag: BSU23170

Expression

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: spmB 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:

Database entries

• Structure:

• UniProt: P35158

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: dacB-spmA-spmB PubMed

• Sigma factor: SigE PubMed

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

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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)

D L Popham, B Illades-Aguiar, P Setlow
The Bacillus subtilis dacB gene, encoding penicillin-binding protein 5*, is part of a three-gene operon required for proper spore cortex synthesis and spore core dehydration.
J Bacteriol: 1995, 177(16);4721-9
[PubMed:7642500] [WorldCat.org] [DOI] (P p)

E B Simpson, T W Hancock, C E Buchanan
Transcriptional control of dacB, which encodes a major sporulation-specific penicillin-binding protein.
J Bacteriol: 1994, 176(24);7767-9
[PubMed:7528199] [WorldCat.org] [DOI] (P p)