Ribosomal Protein L30e from Thermococcus celer

Experimental Data Snapshot

  • Resolution: 1.96 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.170 

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This is version 1.3 of the entry. See complete history


Crystal Structure of Ribosomal Protein L30E from the Extreme Thermophile Thermocccus Celer: Thermal Stability and RNA Binding

Chen, Y.W.Bycroft, M.Wong, K.B.

(2003) Biochemistry 42: 2857

  • DOI: https://doi.org/10.1021/bi027131s
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    We report here the high-resolution crystal structure of the ribosomal protein L30e from the hyperthermophilic archaeon Thermococcus celer determined at cryo-temperature. When it is compared with its mesophilic homologue, L30e from yeast, a number of structural features that can enhance thermostability are revealed. Disordered residues corresponding to a large RNA-binding loop in yeast L30e are well structured in the T. celer protein. The overall charge of T. celer L30e is near neutral, whereas that of the yeast homologue is highly positive. This is the result of an increase in the number of acidic residues at the expense of polar residues, Asn, Ser, and Thr. Extensive ion pair networks are found on the molecular surface. Exposed nonpolar surface areas are reduced in the T. celer protein. Its side chain atoms preferably form hydrogen bonds with main chain atoms. Taken together, these factors contribute to high protein stability. The roles of well-conserved L30e residues are studied and found to be important in defining a very compact overall structure and in maintaining the structure of the RNA binding site. By comparing it with the yeast homologue, we also identified the residues that are responsible for RNA binding and built a model to illustrate how L30e binds to an RNA kink turn motif.

  • Organizational Affiliation

    Cambridge University Chemical Laboratory and Centre for Protein Engineering, Medical Research Council Centre, Hills Road, Cambridge CB2 2QH, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
50S RIBOSOMAL PROTEIN L30E102Thermococcus celerMutation(s): 0 
Gene Names: rpl30erpl30
Find proteins for P29160 (Thermococcus celer)
Explore P29160 
Go to UniProtKB:  P29160
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP29160
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.96 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.165 
  • R-Value Observed: 0.170 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 48.32α = 90
b = 48.32β = 90
c = 86.42γ = 120
Software Package:
Software NamePurpose
iMOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-04-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-01-24
    Changes: Source and taxonomy