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
grxAGlutaredoxin 1, redox coenzyme for ribonucleotide reductase (RNR1a); The disulfide bond functions as an electron carrier in the glutathione-dependent synthesis of deoxyribonucleotides by the enzyme ribonucleotide reductase. In addition, it is also involved in reducing some disulfide bonds in a coupled system with glutathione reductase; Belongs to the glutaredoxin family. (85 aa)    
Predicted Functional Partners:
nrdA
Ribonucleoside-diphosphate reductase 1, alpha subunit; Provides the precursors necessary for DNA synthesis. Catalyzes the biosynthesis of deoxyribonucleotides from the corresponding ribonucleotides. R1 contains the binding sites for both substrates and allosteric effectors and carries out the actual reduction of the ribonucleotide. It also provides redox-active cysteines.
  
 0.966
bolA
Stationary-phase morphogene, transcriptional repressor for mreB; Transcriptional regulator that plays an important role in general stress response. Has many effects on cell morphology, cell growth and cell division. Acts by regulating the transcription of many genes, including dacA (PBP-5), dacC (PBP-6), ampC and mreB. Probably involved in the coordination of genes that adapt the cell physiology in order to enhance cell adaptation and survival under stress conditions. Essential for normal cell morphology in stationary phase and under conditions of starvation. Also regulates a complex n [...]
 
 
 0.953
grxD
Glutaredoxin-4; Monothiol glutaredoxin involved in the biogenesis of iron- sulfur clusters; Belongs to the glutaredoxin family. Monothiol subfamily.
 
 
 0.931
trxC
Thioredoxin 2; Efficient electron donor for the essential enzyme ribonucleotide reductase. Is also able to reduce the interchain disulfide bridges of insulin.
  
  
 0.925
gor
Glutathione oxidoreductase; Maintains high levels of reduced glutathione in the cytosol; Belongs to the class-I pyridine nucleotide-disulfide oxidoreductase family.
  
 
 0.919
trxB
Thioredoxin reductase, FAD/NAD(P)-binding; Thioredoxin reductase; Belongs to the class-II pyridine nucleotide-disulfide oxidoreductase family.
   
 
 0.914
grxB
Glutaredoxin 2 (Grx2); Involved in reducing some disulfide bonds in a coupled system with glutathione reductase. Does not act as hydrogen donor for ribonucleotide reductase.
      
 0.898
oxyR
Oxidative and nitrosative stress transcriptional regulator; Hydrogen peroxide sensor. Activates the expression of a regulon of hydrogen peroxide-inducible genes such as katG, gor, ahpC, ahpF, oxyS (a regulatory RNA), dps, fur and grxA. OxyR expression is negatively autoregulated by binding to a 43 bp region upstream of its own coding sequence. OxyR is inactivated by reduction of its essential disulfide bond by the product of GrxA, itself positively regulated by OxyR. Has also a positive regulatory effect on the production of surface proteins that control the colony morphology and auto- [...]
      
 0.894
ahpF
Alkyl hydroperoxide reductase, F52a subunit, FAD/NAD(P)-binding; Serves to protect the cell against DNA damage by alkyl hydroperoxides. It can use either NADH or NADPH as electron donor for direct reduction of redox dyes or of alkyl hydroperoxides when combined with the AhpC protein; Belongs to the class-II pyridine nucleotide-disulfide oxidoreductase family.
  
  
 0.874
katG
Catalase-peroxidase HPI, heme b-containing; Bifunctional enzyme with both catalase and broad-spectrum peroxidase activity. Displays also NADH oxidase, INH lyase and isonicotinoyl-NAD synthase activity; Belongs to the peroxidase family. Peroxidase/catalase subfamily.
   
  
 0.836
Your Current Organism:
Escherichia coli K12
NCBI taxonomy Id: 511145
Other names: E. coli str. K-12 substr. MG1655, Escherichia coli MG1655, Escherichia coli str. K-12 substr. MG1655, Escherichia coli str. K12 substr. MG1655, Escherichia coli str. MG1655, Escherichia coli strain MG1655
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STRING is a Core Data Resource as designated by Global Biodata Coalition and ELIXIR.