STRINGSTRING
STRING protein interaction network
Nodes:
Network nodes represent proteins
splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
Node Color
colored nodes:
query proteins and first shell of interactors
white nodes:
second shell of interactors
Node Content
empty nodes:
proteins of unknown 3D structure
filled nodes:
a 3D structure is known or predicted
Edges:
Edges represent protein-protein associations
associations are meant to be specific and meaningful, i.e. proteins jointly contribute to a shared function; this does not necessarily mean they are physically binding to each other.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
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comKCompetence transcription factor (CTF); A master regulator required for the expression of late competence genes including comC, comE, comG and the bdbDC operon. Receives signals from SrfA, and possibly other regulatory COM genes, and transduces these signals to the late COM genes. Represses transcription of rok. May repress expression of a few genes. (192 aa)    
Predicted Functional Partners:
mecA
Adaptor protein controlling oligomerization of the AAA+ protein ClpC; Enables the recognition and targeting of unfolded and aggregated proteins to the ClpC protease or to other proteins involved in proteolysis. Acts negatively in the development of competence by binding ComK and recruiting it to the ClpCP protease. When overexpressed, inhibits sporulation. Also involved in Spx degradation by ClpC.
  
   
 0.989
comS
Regulator of genetic competence; Required for the development of competence.
   
  
 0.980
clpC
Class III stress response-related ATPase, AAA+ superfamily; Competence gene repressor; required for cell growth at high temperature. Negative regulator of comK expression. May interact with MecA to negatively regulate comK; Belongs to the ClpA/ClpB family. ClpC subfamily.
    
 
 0.962
comGA
Membrane associated ATPase for DNA competence; Required for uptake of DNA by competent cells.
   
  
 0.960
abrB
Transcriptional regulator for transition state genes; Ambiactive repressor and activator of the transcription of genes expressed during the transition state between vegetative growth and the onset of stationary phase and sporulation. It controls the expression of genes spovG and tycA. AbrB binds to the tycA promoter region at two A- and T-rich sites, it may be the sole repressor of tycA transcription; To B.subtilis Abh and SpoVT.
  
   
 0.934
comEA
Membrane bound high-affinity DNA-binding receptor; Needed for both DNA binding and transport. It is absolutely required for the uptake of transforming DNA but not for binding. Its role in binding may be indirect.
   
  
 0.934
comC
Membrane protease and transmethylase; Cleaves type-4 fimbrial leader sequence and methylates the N- terminal (generally Phe) residue; Belongs to the peptidase A24 family.
   
  
 0.882
nucA
Endonuclease; By degrading DNA that enters the cell, plays a role in the competence of cells to be transformed. Degrades both double-stranded, linear and covalently closed circular DNA.
   
  
 0.879
rok
Repressor of comK; Repressor of comK, the master regulator of competence development. Overexpression seems to be lethal. Represses at least 20 genes that specify membrane- localized and secreted proteins, including some that encode products with antibiotic activity. Binds to many AT-rich sites in the chromosome, many of which are known or thought to derive from horizontal gene transfer; helps keep mobile element ICEBs1 quiescent in the genome. Binds to its own promoter and is thus probably autoregulatory.
   
  
 0.879
spo0A
Response regulator; May play the central regulatory role in sporulation. It may be an element of the effector pathway responsible for the activation of sporulation genes in response to nutritional stress. Spo0A may act in concert with Spo0H (a sigma factor) to control the expression of some genes that are critical to the sporulation process. Repressor of abrB, activator of the spoIIa operon. Binds the DNA sequence 5'-TGNCGAA-3' (0A box).
      
 0.879
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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