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.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
Your Input:
Neighborhood
Gene Fusion
Cooccurrence
Coexpression
Experiments
Databases
Textmining
[Homology]
Score
SIT66969.1RNA polymerase, sigma 54 subunit, RpoN/SigL; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. (492 aa)    
Predicted Functional Partners:
rpoB
DNA-directed RNA polymerase subunit beta; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
    
 
 0.987
rpoC
DNA-directed RNA polymerase subunit beta; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
  
 
 
 0.987
rpoA
DNA-directed RNA polymerase subunit alpha; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
  
 
 0.981
SIT66081.1
Two-component response regulator CbrB.
 
  
 0.967
rpoZ
DNA-directed RNA polymerase subunit omega; Promotes RNA polymerase assembly. Latches the N- and C- terminal regions of the beta' subunit thereby facilitating its interaction with the beta and alpha subunits.
   
 
 0.955
ntrC
Nitrogen metabolism transcriptional regulator, NtrC, Fis family; Member of the two-component regulatory system NtrB/NtrC, which controls expression of the nitrogen-regulated (ntr) genes in response to nitrogen limitation. Phosphorylated NtrC binds directly to DNA and stimulates the formation of open promoter-sigma54-RNA polymerase complexes.
 
  
 0.917
SIT66569.1
Sigma54 specific transcriptional regulator, Fis family.
 
  
 0.898
SIT65619.1
Signal transduction histidine kinase.
 
 
 0.873
SIT65891.1
His Kinase A (phospho-acceptor) domain-containing protein.
  
 
 0.854
SIT66976.1
PTS IIA-like nitrogen-regulatory protein PtsN.
 
  
 0.853
Your Current Organism:
Ectothiorhodosinus mongolicus
NCBI taxonomy Id: 233100
Other names: DSM 15479, E. mongolicus, Ectothiorhodosinus mongolicum, Ectothiorhodosinus mongolicus corrig. Gorlenko et al. 2007, UNIQEM U217, strain M9
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