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
pnpAPolynucleotide phosphorylase (PNPase); Involved in mRNA degradation. Catalyzes the phosphorolysis of single-stranded polyribonucleotides processively in the 3'- to 5'- direction. Necessary for competence development in Bacillus subtilis. May be necessary for modification of the srfA transcript (stabilization or translation activation). (705 aa)    
Predicted Functional Partners:
rny
Endoribonuclease Y; Endoribonuclease that initiates mRNA decay. Initiates the decay of all SAM-dependent riboswitches, such as yitJ riboswitch. Involved in processing of the gapA operon mRNA, it cleaves between cggR and gapA. Is also the decay-initiating endonuclease for rpsO mRNA. Belongs to the RNase Y family.
 
 
 0.999
cshA
ATP-dependent RNA helicase; The most abundant DEAD-box RNA helicase. An ATP-dependent RNA helicase with RNA-dependent ATPase activity. May work in conjunction with the cold shock proteins to ensure proper initiation of transcription at low and optimal temperatures. In vitro, unwinds dsRNA in both 5'- and 3'- directions. Plays a role in ribosomal 50S subunit assembly. Its deletion leads to changes in mRNA levels for over 200 transcripts.
 
 
 0.998
rnjA
Ribonuclease J1; An RNase that has endonuclease and 5'-3' exonuclease activity, playing a role in both rRNA and mRNA stability and degradation. Endonuclease activity can cleave within 4 nucleotides of the 5'-end of a triphosphorylated RNA. Endonuclease digestion by the RNase J1/J2 complex occurs at a different site and in some cases more efficiently than J1 or J2 alone. The exonuclease activity of the J1/J2 complex is highly processive on substrates longer than 5 nucleotides, on shorter substrates is distributive. Preferentially cleaves ssRNA, possibly in AU-rich regions. The 5'-exonuc [...]
 
  
 0.996
rnr
Ribonuclease R; 3'-5' exoribonuclease that releases 5'-nucleoside monophosphates and is involved in maturation of structured RNAs.
   
  
 0.986
rho
Transcriptional terminator Rho; Facilitates transcription termination by a mechanism that involves Rho binding to the nascent RNA, activation of Rho's RNA- dependent ATPase activity, and release of the mRNA from the DNA template.
   
  
 0.986
rnjB
Ribonuclease J2; Endonucleolytically cleaves the 5'-leader sequence of certain mRNAs. Endonuclease digestion by the RNase J1/J2 complex occurs at a different site and in some cases more efficiently than J1 or J2 alone. The exonuclease activity of the J1/J2 complex is highly processive on substrates longer than 5 nucleotides, on shorter substrates is distributive. Plays a role in mRNA maturation and stability. Appears to have a limited effect on 16S rRNA maturation, despite its similarity to RNase J1. This subunit alone has very poor 5'-3' exonuclease activity. Belongs to the metallo-be [...]
 
  
 0.978
rpsO
Ribosomal protein S15 (BS18); One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it helps nucleate assembly of the platform of the 30S subunit by binding and bridging several RNA helices of the 16S rRNA.
 
  
 0.973
hfq
Hfq RNA chaperone; 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.
    
 
 0.973
pfkA
6-phosphofructokinase; Catalyzes the phosphorylation of D-fructose 6-phosphate to fructose 1,6-bisphosphate by ATP, the first committing step of glycolysis; Belongs to the phosphofructokinase type A (PFKA) family. ATP-dependent PFK group I subfamily. Prokaryotic clade 'B1' sub- subfamily.
  
  
 0.972
nusA
Transcription translation coupling factor involved in Rho-dependent transcription termination; Participates in both transcription termination and antitermination.
 
  
 0.949
Your Current Organism:
Bacillus subtilis 168
NCBI taxonomy Id: 224308
Other names: B. subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis 168, Bacillus subtilis subsp. subtilis str. 168, Bacillus subtilis subsp. subtilis str. BGSC 1A700
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