50S ribosomal protein L18 - P0C018 (RL18_ECOLI)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

This is one of the proteins that mediates the attachment of the 5S rRNA subcomplex onto the large ribosomal subunit where it forms part of the central protuberance. Binds stably to 5S rRNA; increases binding abilities of L5 in a cooperative fashion; both proteins together confer 23S rRNA binding. The 5S rRNA and some of its associated proteins might help stabilize positioning of ribosome-bound tRNAs. UniProt
Pathway Maps
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Subunit Structure
Part of the 50S ribosomal subunit (PubMed:1098937, PubMed:10094780, PubMed:12809609, PubMed:16272117, PubMed:25310980, PubMed:24844575, PubMed:27934701, PubMed:27906160, PubMed:27906161); part of the 5S rRNA/L5/L18/L25 subcomplex (PubMed:354687, PubMed:353728, PubMed:109811, PubMed:6159586, PubMed:7038683, PubMed:8925931). Contacts the 5S and 23S rRNAs. UniProt
The basic N-terminus is not necessary for binding to 5S rRNA. It is however required for cooperative binding of L5 and L18 to 5S rRNA as well as for binding of the 5S rRNA/L5/L18 complex to the 23S rRNA. UniProt
  • Other Gene names: rplR, b3304, JW3266
This protein in other organisms (by gene name):
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Data in green originates from UniProtKB  
Variation data (sourced from UniProt) shows non-genetic variation from the ExPASy   and dbSNP   websites.
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in purple originates from Phosphosite  .
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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Validation Track

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Data in red indicates combined ranges of Homology Models from the SWISS-MODEL Repository  
The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).
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