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
pnpPolyribonucleotide nucleotidyltransferase, putative; Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. (698 aa)    
Predicted Functional Partners:
cshA
ATP-dependent RNA helicase, DEAD box family, putative; A probable ATP-dependent RNA helicase with RNA-dependent ATPase activity. Involved in regulation of biofilm formation and hemolysis via its effects on stability of mRNA from the agrBDCA operon. Also involved in response to cold stress.
  
 
 0.985
rny
Conserved hypothetical protein; Endoribonuclease that initiates mRNA decay (By similarity). In vitro, catalyzes the hydrolysis of both 2',3'-cyclic AMP and 2',3'- cyclic GMP into 3'-AMP and 3'-GMP, respectively, at the 3'-terminal of RNA. Activates sarZ and agr operon resulting in the expression of virulence genes such as hemolysin, DNase and protease. Contributes to virulence in both silkworm-infection model and mice.
  
 
 0.970
hfq
Host factor 1 protein, putative; RNA chaperone that binds small regulatory RNA (sRNAs) and mRNAs to facilitate mRNA translational regulation in response to envelope stress, environmental stress and changes in metabolite concentrations. Also binds with high specificity to tRNAs. Belongs to the Hfq family.
    
 
 0.956
rplD
Conserved hypothetical protein; One of the primary rRNA binding proteins, this protein initially binds near the 5'-end of the 23S rRNA. It is important during the early stages of 50S assembly. It makes multiple contacts with different domains of the 23S rRNA in the assembled 50S subunit and ribosome.
  
    0.939
nusA
Transcription termination-antitermination factor, putative; Participates in both transcription termination and antitermination.
 
  
 0.937
rnj2
Conserved hypothetical protein; An RNase that has 5'-3' exonuclease and endonuclease activity, with the exonuclease activity probably being most important in vivo. Involved in maturation of 16S rRNA, rnpB (the RNA component of RNase P) maturation and degradation, and mRNA maturation and/or decay. This subunit probably plays a structural rather than enzymatic role as mutation of its putative active site gives no phenotype, and its deletion is partially complemented by inactive RNase J1.
 
  
 0.928
fusA
Translation elongation factor G; Catalyzes the GTP-dependent ribosomal translocation step during translation elongation. During this step, the ribosome changes from the pre-translocational (PRE) to the post-translocational (POST) state as the newly formed A-site-bound peptidyl-tRNA and P-site-bound deacylated tRNA move to the P and E sites, respectively. Catalyzes the coordinated movement of the two tRNA molecules, the mRNA and conformational changes in the ribosome.
   
 
 0.919
infB
Translation initiation factor IF-2; One of the essential components for the initiation of protein synthesis. Protects formylmethionyl-tRNA from spontaneous hydrolysis and promotes its binding to the 30S ribosomal subunits. Also involved in the hydrolysis of GTP during the formation of the 70S ribosomal complex; Belongs to the TRAFAC class translation factor GTPase superfamily. Classic translation factor GTPase family. IF-2 subfamily.
  
  
 0.914
rpoB
RNA polymerase beta chain, putative; DNA-dependent RNA polymerase catalyzes the transcription of DNA into RNA using the four ribonucleoside triphosphates as substrates.
   
  
 0.912
cshB
Conserved hypothetical protein; Probable DEAD-box RNA helicase. May work in conjunction with the cold shock proteins to ensure proper initiation of transcription at low and optimal temperatures.
  
 
 0.909
Your Current Organism:
Staphylococcus aureus
NCBI taxonomy Id: 93061
Other names: S. aureus subsp. aureus NCTC 8325, Staphylococcus aureus NCTC 8325, Staphylococcus aureus subsp. aureus NCTC 8325, Staphylococcus aureus subsp. aureus str. NCTC 8325, Staphylococcus aureus subsp. aureus strain NCTC 8325
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