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smpB protein (Klebsiella pneumoniae) - STRING interaction network
"smpB" - SsrA-binding protein in Klebsiella pneumoniae
Nodes:
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splice isoforms or post-translational modifications are collapsed, i.e. each node represents all the proteins produced by a single, protein-coding gene locus.
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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empty nodes:
proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
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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 each other.
Known Interactions
from curated databases
experimentally determined
Predicted Interactions
gene neighborhood
gene fusions
gene co-occurrence
Others
textmining
co-expression
protein homology
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Gene Fusion
Cooccurence
Coexpression
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Databases
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[Homology]
Score
smpBSsrA-binding protein; Required for rescue of stalled ribosomes mediated by trans-translation. Binds to transfer-messenger RNA (tmRNA), required for stable association of tmRNA with ribosomes. tmRNA and SmpB together mimic tRNA shape, replacing the anticodon stem-loop with SmpB. tmRNA is encoded by the ssrA gene; the 2 termini fold to resemble tRNA(Ala) and it encodes a "tag peptide", a short internal open reading frame. During trans-translation Ala- aminoacylated tmRNA acts like a tRNA, entering the A-site of stalled ribosomes, displacing the stalled mRNA. The ribosome then switches to [...] (160 aa)    
Predicted Functional Partners:
rplT
50S ribosomal protein L20; Binds directly to 23S ribosomal RNA and is necessary for the in vitro assembly process of the 50S ribosomal subunit. It is not involved in the protein synthesizing functions of that subunit (118 aa)
   
 
  0.949
rplS
50S ribosomal protein L19; This protein is located at the 30S-50S ribosomal subunit interface and may play a role in the structure and function of the aminoacyl-tRNA binding site (115 aa)
 
 
  0.944
rpsB
30S ribosomal protein S2; Derived by automated computational analysis using gene prediction method- Protein Homology; Belongs to the universal ribosomal protein uS2 family (241 aa)
   
 
  0.943
rplM
50S ribosomal protein L13; This protein is one of the early assembly proteins of the 50S ribosomal subunit, although it is not seen to bind rRNA by itself. It is important during the early stages of 50S assembly (142 aa)
   
 
  0.920
rpsC
30S ribosomal protein S3; Binds the lower part of the 30S subunit head. Binds mRNA in the 70S ribosome, positioning it for translation (232 aa)
   
 
  0.918
rplP
50S ribosomal protein L16; Binds 23S rRNA and is also seen to make contacts with the A and possibly P site tRNAs (136 aa)
   
 
  0.917
rpsE
30S ribosomal protein S5; Located at the back of the 30S subunit body where it stabilizes the conformation of the head with respect to the body; Belongs to the universal ribosomal protein uS5 family (167 aa)
 
 
  0.908
rpmA
50S ribosomal protein L27; Involved in the peptidyltransferase reaction during translation; Derived by automated computational analysis using gene prediction method- Protein Homology (85 aa)
 
 
  0.908
rpsM
30S ribosomal protein S13; Located at the top of the head of the 30S subunit, it contacts several helices of the 16S rRNA. In the 70S ribosome it contacts the 23S rRNA (bridge B1a) and protein L5 of the 50S subunit (bridge B1b), connecting the 2 subunits; these bridges are implicated in subunit movement. Contacts the tRNAs in the A and P- sites (118 aa)
 
 
  0.907
rpsS
30S ribosomal protein S19; Protein S19 forms a complex with S13 that binds strongly to the 16S ribosomal RNA (92 aa)
   
 
  0.905
Your Current Organism:
Klebsiella pneumoniae
NCBI taxonomy Id: 573
Other names: ATCC 13883, Bacillus pneumoniae, Bacterium pneumoniae crouposae, CCUG 225, CIP 82.91, DSM 30104, HAMBI 450, Hyalococcus pneumoniae, IFO 14940, K. pneumoniae, Klebsiella pneumoniae, Klebsiella sp. M-AI-2, Klebsiella sp. PB12, Klebsiella sp. RCE-7, LMG 2095, NBRC 14940, NCTC 9633
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