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
ppxExopolyphosphatase; Degradation of inorganic polyphosphates (polyP). Releases orthophosphate processively from the ends of the polyP chain. (513 aa)    
Predicted Functional Partners:
ppk
Polyphosphate kinase; Catalyzes the reversible transfer of the terminal phosphate of ATP to form a long-chain polyphosphate (polyP); Belongs to the polyphosphate kinase 1 (PPK1) family.
 
  
 0.989
relA
(p)ppGpp synthetase I (GTP pyrophosphokinase); In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. This enzyme catalyzes the formation of pppGpp which is then hydrolyzed to form ppGpp (By similarity).
  
 
 0.929
gppA
Guanosine pentaphosphatase; Catalyzes the conversion of pppGpp to ppGpp. Guanosine pentaphosphate (pppGpp) is a cytoplasmic signaling molecule which together with ppGpp controls the 'stringent response', an adaptive process that allows bacteria to respond to amino acid starvation, resulting in the coordinated regulation of numerous cellular activities.
  
  
0.921
spoT
(p)ppGpp synthetase II; In eubacteria ppGpp (guanosine 3'-diphosphate 5-' diphosphate) is a mediator of the stringent response that coordinates a variety of cellular activities in response to changes in nutritional abundance. This enzyme catalyzes the degradation of ppGpp into GDP. It may also be capable of catalyzing the synthesis of ppGpp (By similarity); Belongs to the RelA/SpoT family.
  
 
 0.912
tehB
Tellurite resistance; Residues 1 to 197 of 197 are 98.47 pct identical to residues 1 to 197 of 197 from Escherichia coli K-12 Strain MG1655: B1430.
 
      0.582
symE
Orf; Involved in the degradation and recycling of damaged RNA. It is itself a target for degradation by the ATP-dependent protease Lon. Belongs to the SymE family.
      
 0.513
purM
Phosphoribosylaminoimidazole synthetase = AIR synthetase; Residues 1 to 345 of 345 are 99.13 pct identical to residues 1 to 345 of 345 from Escherichia coli K-12 Strain MG1655: B2499; Belongs to the AIR synthase family.
       0.497
purN
Phosphoribosylglycinamide formyltransferase 1; Catalyzes the transfer of a formyl group from 10- formyltetrahydrofolate to 5-phospho-ribosyl-glycinamide (GAR), producing 5-phospho-ribosyl-N-formylglycinamide (FGAR) and tetrahydrofolate.
       0.497
chpR
Suppressor of inhibitory function of ChpA, PemI-like, autoregulated; Antitoxin component of a type II toxin-antitoxin (TA) system. Labile antitoxin that binds to its cognate MazF endoribonuclease toxin and neutralizes its activity. Both MazE and MazE-MazF bind to the promoter region of the mazE-mazF operon to inhibit their transcription. Belongs to the PemI family.
      
 0.461
dsbC
Protein disulfide isomerase II; Required for disulfide bond formation in some periplasmic proteins. Acts by transferring its disulfide bond to other proteins and is reduced in the process. DsbC is reoxidized by a yet uncharacterized protein. Also acts as a disulfide isomerase (By similarity).
  
    0.441
Your Current Organism:
Escherichia coli O157H7 EDL933
NCBI taxonomy Id: 155864
Other names: E. coli O157:H7 str. EDL933, Escherichia coli O157:H7 EDL933, Escherichia coli O157:H7 str. EDL933, Escherichia coli O157:H7 strain EDL933
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