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
epmBEF-P-Lys34 lysylation protein; With EpmA is involved in the beta-lysylation step of the post-translational modification of translation elongation factor P (EF- P) on 'Lys-34'. EpmB appears to act before EpmA. Displays lysine 2,3- aminomutase activity, producing (R)-beta-lysine from (S)-alpha-lysine (L-lysine). Cannot use (S)-ornithine or (R)-alpha-lysine as a substrate; Belongs to the radical SAM superfamily. KamA family. (342 aa)    
Predicted Functional Partners:
efp
Polyproline-specific translation elongation factor EF-P; Involved in peptide bond synthesis. Alleviates ribosome stalling that occurs when 3 or more consecutive Pro residues or the sequence PPG is present in a protein, possibly by augmenting the peptidyl transferase activity of the ribosome. Beta-lysylation at Lys- 34 is required for alleviation. The Pro codons and their context do not affect activity; only consecutive Pro residues (not another amino acid) are affected by EF-P. Has stimulatory effects on peptide bond formation between ribosome-bound initiator tRNA(fMet) and puromycin, [...]
 
  
 0.987
epmA
Elongation Factor P Lys34 lysyltransferase; With EpmB is involved in the beta-lysylation step of the post-translational modification of translation elongation factor P (EF- P) on 'Lys-34'. Catalyzes the ATP-dependent activation of (R)-beta- lysine produced by EpmB, forming a lysyl-adenylate, from which the beta-lysyl moiety is then transferred to the epsilon-amino group of EF- P 'Lys-34'. The substrate (R)-beta-lysine is 100-fold more efficient than either (S)-beta-lysine or L-alpha-lysine. Cannot ligate lysine to any tRNA.
 
  
 0.986
epmC
Elongation Factor P Lys34 hydroxylase; Is involved in the final hydroxylation step of the post- translational modification of translation elongation factor P (EF-P) on 'Lys-34'. Acts after beta-lysylation of 'Lys-34' by EpmA and EpmB. EpmC adds an oxygen atom to the C5 position of 'Lys-34' and does not modify the added beta-lysine.
  
   
 0.954
yeiP
Putative elongation factor; Protein involved in translation.
  
  
 0.918
yjeJ
Uncharacterized protein.
 
  
 0.874
cheR
Chemotaxis regulator, protein-glutamate methyltransferase; Methylation of the membrane-bound methyl-accepting chemotaxis proteins (MCP) to form gamma-glutamyl methyl ester residues in MCP.
    
   0.861
bioB
Biotin synthase; Catalyzes the conversion of dethiobiotin (DTB) to biotin by the insertion of a sulfur atom into dethiobiotin via a radical-based mechanism.
     
 0.838
pflC
Putative [formate-C-acetyltransferase 2]-activating enzyme; Activation of pyruvate formate-lyase 2 under anaerobic conditions by generation of an organic free radical, using S- adenosylmethionine and reduced flavodoxin as cosubstrates to produce 5'-deoxy-adenosine; Belongs to the organic radical-activating enzymes family.
      
 0.731
ybiY
Putative pyruvate formate lyase activating enzyme; Activation of pyruvate formate-lyase 2 under anaerobic conditions by generation of an organic free radical, using S- adenosylmethionine and reduced flavodoxin as cosubstrates to produce 5'-deoxy-adenosine; Belongs to the organic radical-activating enzymes family.
      
 0.730
trpR
Transcriptional repressor, tryptophan-binding; This protein is an aporepressor. When complexed with L- tryptophan it binds the operator region of the trp operon (5'- ACTAGT-'3') and prevents the initiation of transcription. The complex also regulates trp repressor biosynthesis by binding to its regulatory region.
  
    0.714
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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