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

  • 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 ...

    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: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (50S RIBOSOMAL PROTEIN L25)
A
94Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: rplY
Find proteins for P68919 (Escherichia coli (strain K12))
Go to UniProtKB:  P68919
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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