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
craTranscriptional repressor-activator for carbon metabolism; Global transcriptional regulator, which plays an important role in the regulation of carbon metabolism. Activates transcription of genes encoding biosynthetic and oxidative enzymes (involved in Krebs cycle, glyoxylate shunt and gluconeogenesis, such as ppsA and fbp). Represses genes involved in sugar catabolism, such as fruB, pfkA, pykF and adhE. Binds asymmetrically to the two half-sites of its operator. (334 aa)    
Predicted Functional Partners:
fruB
Fused fructose-specific PTS enzymes: IIA component/HPr component; The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The enzyme II FruAB PTS system is involved in fructose transport.
 
 
 
 0.888
ilvH
Acetolactate synthase III, valine sensitive, small subunit.
    
 0.842
crp
cAMP-activated global transcription factor, mediator of catabolite repression; A global transcription regulator. Complexes with cyclic AMP (cAMP) which allosterically activates DNA binding (to consensus sequence 5'-AAATGTGATCTAGATCACATTT-3') to directly regulate the transcription of about 300 genes in about 200 operons and indirectly regulate the expression of about half the genome. There are 3 classes of CRP promoters; class I promoters have a single CRP-binding site upstream of the RNA polymerase (RNAP)-binding site, whereas in class II promoters the single CRP- and RNAP-binding site [...]
   
  
 0.811
ilvI
Acetolactate synthase III, valine sensitive, large subunit.
      0.779
fruK
Fructose-1-phosphate kinase; Protein involved in glycolysis; Belongs to the carbohydrate kinase PfkB family.
 
   
 0.769
cyaA
Adenylate cyclase; Catalyzes the formation of the second messenger cAMP from ATP. Its transcript is probably degraded by endoribonuclease LS (rnlA), decreasing cAMP levels and the negative regulator Crp-cAMP, which then induces its own transcription again.
  
   
 0.769
fruA
Fused fructose-specific PTS enzymes: IIBcomponent/IIC components; The phosphoenolpyruvate-dependent sugar phosphotransferase system (sugar PTS), a major carbohydrate active transport system, catalyzes the phosphorylation of incoming sugar substrates concomitantly with their translocation across the cell membrane. The enzyme II FruAB PTS system is involved in fructose transport.
     
 0.768
ebgR
Transcriptional repressor; Repressor for beta galactosidase alpha and beta subunits (ebgA and ebgC). Binds lactose as an inducer.
  
   
 0.730
pykF
Pyruvate kinase I (formerly F), fructose stimulated; Protein involved in glycolysis, fermentation and anaerobic respiration.
  
 
 
 0.693
gltB
Glutamate synthase, large subunit; Catalyzes the conversion of L-glutamine and 2-oxoglutarate into two molecules of L-glutamate.
    
 
 0.668
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
Server load: medium (50%) [HD]