ComGB

• Description: polytopic membrane protein , DNA transport machinery
  
  

Gene name	comGB
Synonyms
Essential	no
Product	DNA transport machinery
Function	genetic competence, DNA uptake
Gene expression levels in SubtiExpress: comGB
Interactions involving this protein in SubtInteract: ComGB
Metabolic function and regulation of this protein in SubtiPathways: Protein secretion
MW, pI	36 kDa, 8.654
Gene length, protein length	969 bp, 323 aa
Immediate neighbours	comGC, comGA
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

genetic competence, membrane proteins

This gene is a member of the following regulons

ComK regulon

The gene

Basic information

• Locus tag: BSU24720

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family: GSP F family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:
  • ComGB-ComGA PubMed
  • ComGB-ComGC PubMed
  • ComGB-ComGD PubMed
  • ComGB-ComGE PubMed
  • ComGB-ComGG PubMed

• Localization: cell membrane, polar localization PubMed

Database entries

• Structure:

• UniProt: P25954

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: comGA-comGB-comGC-comGD-comGE-comGF-comGG-yqzE PubMed

• Expression browser: comGB PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • repressed by casamino acids PubMed

• Regulatory mechanism:
  • ComK: transcription activation PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Inês Chen, David Dubnau
DNA uptake during bacterial transformation.
Nat Rev Microbiol: 2004, 2(3);241-9
[PubMed:15083159] [WorldCat.org] [DOI] (P p)

Original publications

Ulrike Mäder, Georg Homuth, Christian Scharf, Knut Büttner, Rüdiger Bode, Michael Hecker
Transcriptome and proteome analysis of Bacillus subtilis gene expression modulated by amino acid availability.
J Bacteriol: 2002, 184(15);4288-95
[PubMed:12107147] [WorldCat.org] [DOI] (P p)

Hanne Jarmer, Randy Berka, Steen Knudsen, Hans H Saxild
Transcriptome analysis documents induced competence of Bacillus subtilis during nitrogen limiting conditions.
FEMS Microbiol Lett: 2002, 206(2);197-200
[PubMed:11814663] [WorldCat.org] [DOI] (P p)

Y S Chung, D Dubnau
All seven comG open reading frames are required for DNA binding during transformation of competent Bacillus subtilis.
J Bacteriol: 1998, 180(1);41-5
[PubMed:9422590] [WorldCat.org] [DOI] (P p)

D van Sinderen, A ten Berge, B J Hayema, L Hamoen, G Venema
Molecular cloning and sequence of comK, a gene required for genetic competence in Bacillus subtilis.
Mol Microbiol: 1994, 11(4);695-703
[PubMed:8196543] [WorldCat.org] [DOI] (P p)

M Albano, R Breitling, D A Dubnau
Nucleotide sequence and genetic organization of the Bacillus subtilis comG operon.
J Bacteriol: 1989, 171(10);5386-404
[PubMed:2507524] [WorldCat.org] [DOI] (P p)