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.
Knowledge-based Evidence
from curated databases
textmining
Assay-based Predictions
experimentally determined
co-expression
Genomic Predictions
gene neighborhood
gene co-occurrence
gene fusions
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[Homology]
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grpEMolecular chaperone GrpE (HSP-70 cofactor), putative; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins, in association with DnaK and GrpE. It is the nucleotide exchange factor for DnaK and may function as a thermosensor. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction [...] (178 aa)    
Predicted Functional Partners:
dnaK
Chaperone protein dnaK/HSP70, putative; Acts as a chaperone; Belongs to the heat shock protein 70 family.
 
 0.999
dnaJ
Chaperone protein dnaJ, putative; Participates actively in the response to hyperosmotic and heat shock by preventing the aggregation of stress-denatured proteins and by disaggregating proteins, also in an autonomous, DnaK-independent fashion. Unfolded proteins bind initially to DnaJ; upon interaction with the DnaJ-bound protein, DnaK hydrolyzes its bound ATP, resulting in the formation of a stable complex. GrpE releases ADP from DnaK; ATP binding to DnaK triggers the release of the substrate protein, thus completing the reaction cycle. Several rounds of ATP-dependent interactions betwe [...]
 
 
 0.995
hrcA
Heat shock transcription repressor HrcA, putative; Negative regulator of class I heat shock genes (grpE-dnaK- dnaJ and groELS operons). Prevents heat-shock induction of these operons.
  
  
 0.994
groEL
60 kDa chaperonin; Prevents misfolding and promotes the refolding and proper assembly of unfolded polypeptides generated under stress conditions.
 
 0.989
groS
10 kDa chaperonin; Binds to Cpn60 in the presence of Mg-ATP and suppresses the ATPase activity of the latter.
  
 
 0.981
polA
DNA polymerase I - 3'-5' exonuclease and polymerase domains, putative; In addition to polymerase activity, this DNA polymerase exhibits 5'-3' exonuclease activity.
  
  
 0.739
clpP
ATP-dependent Clp protease, proteolytic subunit, putative; Cleaves peptides in various proteins in a process that requires ATP hydrolysis. Has a chymotrypsin-like activity. Plays a major role in the degradation of misfolded proteins. Belongs to the peptidase S14 family.
   
 
 0.736
clpL
ATP-dependent protease, ATP-binding subunit, putative; GC: 47.36%; Codon Adaptation Index (CAI): 0.799; Protein involved in nucleoside-triphosphatase activity; Belongs to the ClpA/ClpB family.
  
 
 0.722
htpX
HtpX protease, putative; GC: 48.05%; Transmembrane domains: 4. Codon Adaptation Index (CAI): 0.784. SignalP prediction: Yes (prob. 0.893); Curator(s): D. Akan; Protein involved in hydrolase activity and metal ion binding; Belongs to the peptidase M48B family.
  
  
 0.695
hslO
33 kDa chaperonin, putative; Redox regulated molecular chaperone. Protects both thermally unfolding and oxidatively damaged proteins from irreversible aggregation. Plays an important role in the bacterial defense system toward oxidative stress.
   
  
 0.686
Your Current Organism:
Streptococcus sanguinis SK36
NCBI taxonomy Id: 388919
Other names: S. sanguinis SK36, Streptococcus sanguinis str. SK36, Streptococcus sanguinis strain SK36
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