1B75

SOLUTION STRUCTURE OF RIBOSOMAL PROTEIN L25 FROM ESCHERICHIA COLI


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWEST TARGET FUNCTION 

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This is version 1.2 of the entry. See complete history


Literature

The NMR structure of Escherichia coli ribosomal protein L25 shows homology to general stress proteins and glutaminyl-tRNA synthetases.

Stoldt, M.Wohnert, J.Gorlach, M.Brown, L.R.

(1998) EMBO J 17: 6377-6384

  • DOI: 10.1093/emboj/17.21.6377
  • Primary Citation of Related Structures:  
    1B75

  • PubMed Abstract: 
  • The structure of the Escherichia coli ribosomal protein L25 has been determined to an r.m.s. displacement of backbone heavy atoms of 0.62 +/- 0.14 A by multi-dimensional heteronuclear NMR spectroscopy on protein samples uniformly labeled with 15N or 15N/13C ...

    The structure of the Escherichia coli ribosomal protein L25 has been determined to an r.m.s. displacement of backbone heavy atoms of 0.62 +/- 0.14 A by multi-dimensional heteronuclear NMR spectroscopy on protein samples uniformly labeled with 15N or 15N/13C. L25 shows a new topology for RNA-binding proteins consisting of a six-stranded beta-barrel and two alpha-helices. A putative RNA-binding surface for L25 has been obtained by comparison of backbone 15N chemical shifts for L25 with and without a bound cognate RNA containing the eubacterial E-loop that is the site for binding of L25 to 5S ribosomal RNA. Sequence comparisons with related proteins, including the general stress protein, CTC, show that the residues involved in RNA binding are highly conserved, thereby providing further confirmation of the binding surface. Tertiary structure comparisons indicate that the six-stranded beta-barrels of L25 and of the tRNA anticodon-binding domain of glutaminyl-tRNA synthetase are similar.


    Organizational Affiliation

    Abteilung Molekulare Biophysik/NMR Spektroskopie, Institut für Molekulare Biotechnologie e. V., Postfach 100813, 07708 Jena, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (50S RIBOSOMAL PROTEIN L25)A94Escherichia coliMutation(s): 0 
UniProt
Find proteins for P68919 (Escherichia coli (strain K12))
Explore P68919 
Go to UniProtKB:  P68919
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: LOWEST TARGET FUNCTION 
  • OLDERADO: 1B75 Olderado

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-01-26
    Type: Initial release
  • Version 1.1: 2008-04-26
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance