1RA4

Crystal structure of the Methanococcus jannaschii L7Ae protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.173 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The crystal structure of the Methanocaldococcus jannaschii multifunctional L7Ae RNA-binding protein reveals an induced-fit interaction with the box C/D RNAs.

Suryadi, J.Tran, E.J.Maxwell, E.S.Brown, B.A.

(2005) Biochemistry 44: 9657-9672

  • DOI: 10.1021/bi050568q
  • Primary Citation of Related Structures:  
    1RA4, 1XBI

  • PubMed Abstract: 
  • Archaeal ribosomal protein L7Ae is a multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal, box H/ACA, and box C/D sRNAs. The crystal structure of Methanocaldococcus jannaschii L7Ae has been determined to 1.45 A, and L7Ae' ...

    Archaeal ribosomal protein L7Ae is a multifunctional RNA-binding protein that recognizes the K-turn motif in ribosomal, box H/ACA, and box C/D sRNAs. The crystal structure of Methanocaldococcus jannaschii L7Ae has been determined to 1.45 A, and L7Ae's amino acid composition, evolutionary conservation, functional characteristics, and structural details have been analyzed. Comparison of the L7Ae structure to those of a number of related proteins with diverse functions has revealed significant structural homology which suggests that this protein fold is an ancient RNA-binding motif. Notably, the free M. jannaschii L7Ae structure is essentially identical to that with RNA bound, suggesting that RNA binding occurs through an induced-fit interaction. Circular dichroism experiments show that box C/D and C'/D' RNA motifs undergo conformational changes when magnesium or the L7Ae protein is added, corroborating the induced-fit model for L7Ae-box C/D RNA interactions.


    Related Citations: 
    • Efficient RNA 2'-O-methylation requires juxaposed and symmetrically assembled archaeal box C/D and C'/D' RNPs
      Tran, E.J., Zhang, X., Maxwell, E.S.
      (2003) EMBO J 22: 3930
    • Archaeal ribosomal protein L7 is a functional homolog of the eukaryotic 15.5kD/Snu13p snoRNP core protein
      Kuhn, J.F., Tran, E.J., Maxwell, E.S.
      (2002) Nucleic Acids Res 30: 931

    Organizational Affiliation

    Department of Chemistry, Wake Forest University, Winston-Salem, North Carolina 27109, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
50S ribosomal protein L7AeA120Methanocaldococcus jannaschiiMutation(s): 0 
Gene Names: rpl7aeMJ1203
Find proteins for P54066 (Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440))
Explore P54066 
Go to UniProtKB:  P54066
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.173 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.897α = 90
b = 46.36β = 90
c = 53.975γ = 90
Software Package:
Software NamePurpose
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2004-11-16
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance