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smpB protein (Methylobacter tundripaludum) - STRING interaction network
"smpB" - Small protein B in Methylobacter tundripaludum
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query proteins and first shell of interactors
white nodes:
second shell of interactors
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proteins of unknown 3D structure
filled nodes:
some 3D structure is known or predicted
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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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[Homology]
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smpBSmall protein B ; 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 tra [...] (161 aa)    
Predicted Functional Partners:
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 (113 aa)
 
   
  0.955
rnr
Ribonuclease R ; 3’-5’ exoribonuclease that releases 5’-nucleoside monophosphates and is involved in maturation of structured RNAs (746 aa)
       
  0.951
frr
Ribosome-releasing factor ; Responsible for the release of ribosomes from messenger RNA at the termination of protein biosynthesis. May increase the efficiency of translation by recycling ribosomes from one round of translation to another (185 aa)
 
   
  0.915
rpsB
30S ribosomal protein S2 (245 aa)
 
   
  0.908
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 (120 aa)
   
     
  0.873
rplF
50S ribosomal protein L6 ; This protein binds to the 23S rRNA, and is important in its secondary structure. It is located near the subunit interface in the base of the L7/L12 stalk, and near the tRNA binding site of the peptidyltransferase center (177 aa)
   
 
 
  0.872
rplA
50S ribosomal protein L1 ; Binds directly to 23S rRNA. The L1 stalk is quite mobile in the ribosome, and is involved in E site tRNA release (231 aa)
     
 
  0.859
rpsG
30S ribosomal protein S7 ; One of the primary rRNA binding proteins, it binds directly to 16S rRNA where it nucleates assembly of the head domain of the 30S subunit. Is located at the subunit interface close to the decoding center, probably blocks exit of the E-site tRNA (156 aa)
   
     
  0.857
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)
       
 
  0.844
rpsK
30S ribosomal protein S11 ; Located on the platform of the 30S subunit, it bridges several disparate RNA helices of the 16S rRNA. Forms part of the Shine-Dalgarno cleft in the 70S ribosome (128 aa)
         
  0.844
Your Current Organism:
Methylobacter tundripaludum
NCBI taxonomy Id: 697282
Other names: M. tundripaludum, M. tundripaludum SV96, Methylobacter, Methylobacter sp. SV96, Methylobacter tundripaludum, Methylobacter tundripaludum DSM 17260, Methylobacter tundripaludum SV96, Methylobacter tundripaludum Wartiainen et al. 2006, Methylobacter tundripaludum str. SV96, Methylobacter tundripaludum strain SV96
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