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
epmAElongation 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. (325 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, [...]
 
 
 
 0.996
epmB
EF-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.
 
  
 0.986
yjeM
Putative transport.
  
  
 0.939
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.
  
   
 0.936
yeiP
Putative elongation factor; Protein involved in translation.
 
   
 0.926
yjeO
Inner membrane protein.
  
  
 0.859
ampC
Penicillin-binding protein; This protein is a serine beta-lactamase with a substrate specificity for cephalosporins; Belongs to the class-C beta-lactamase family.
  
    0.741
sugE
Multidrug efflux system protein; Guanidinium ion exporter. Couples guanidinium export to the proton motive force, exchanging one guanidinium ion for two protons. Overexpression leads to resistance to a subset of toxic quaternary ammonium compounds such as cetylpyridinium, cetyldimethylethyl ammonium and cetrimide cations. Belongs to the drug/metabolite transporter (DMT) superfamily. Small multidrug resistance (SMR) (TC 2.A.7.1) family. Gdx/SugE subfamily.
   
  
 0.655
gntX
DNA catabolic protein; Required for the use of extracellular DNA as a nutrient. Has been suggested to be involved in gluconate metabolism ; Belongs to the ComF/GntX family.
      
 0.559
cadC
cadBA operon transcriptional activator; Required for Pcad induction, a promoter upstream of cadBA that is responsible for the pH-regulated expression of CadA and CadB. Probably acts as an activating transcription factor.
   
  
 0.529
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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