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
sigF_2RNA polymerase sigma-F factor; Sigma factors are initiation factors that promote the attachment of RNA polymerase to specific initiation sites and are then released. (257 aa)    
Predicted Functional Partners:
spoIIE
Stage II sporulation protein E.
  
  
 0.948
spoIIGA
Sporulation sigma-E factor-processing peptidase; Probable aspartic protease that is responsible for the proteolytic cleavage of the RNA polymerase sigma E factor (SigE/spoIIGB) to yield the active peptide in the mother cell during sporulation. Responds to a signal from the forespore that is triggered by the extracellular signal protein SpoIIR. Belongs to the peptidase U4 family.
 
  
 0.948
spo0A
Stage 0 sporulation protein A; 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.
  
   
 0.941
spoIIAB_1
Anti-sigma F factor; Binds to sigma F and blocks its ability to form an RNA polymerase holoenzyme (E-sigma F). Phosphorylates SpoIIAA on a serine residue. This phosphorylation may enable SpoIIAA to act as an anti- anti-sigma factor that counteracts SpoIIAB and thus releases sigma F from inhibition.
  
  
 0.921
spoIIID
Stage III sporulation protein D.
 
  
 0.900
ytfJ
Putative spore protein YtfJ.
  
   
 0.895
AQR93922.1
PRC-barrel domain protein.
 
     0.871
spoIIAA
Anti-sigma F factor antagonist; Belongs to the anti-sigma-factor antagonist family.
  
   
 0.837
spoIVA
Stage IV sporulation protein A; ATPase. Has a role at an early stage in the morphogenesis of the spore coat.
 
  
 0.837
spoIIR
Stage II sporulation protein SpoIIR.
 
   
 0.825
Your Current Organism:
Clostridium saccharoperbutylacetonicum
NCBI taxonomy Id: 36745
Other names: ATCC 27021, C. saccharoperbutylacetonicum, Clostridium saccharoperbutylacetonicum Keis et al. 2001, DSM 14923, NCIMB 12606, strain N1-4 (HMT)
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