1CQU

SOLUTION STRUCTURE OF THE N-TERMINAL DOMAIN OF RIBOSOMAL PROTEIN L9


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 18 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Effects of varying the local propensity to form secondary structure on the stability and folding kinetics of a rapid folding mixed alpha/beta protein: characterization of a truncation mutant of the N-terminal domain of the ribosomal protein L9.

Luisi, D.L.Kuhlman, B.Sideras, K.Evans, P.A.Raleigh, D.P.

(1999) J Mol Biol 289: 167-174

  • DOI: 10.1006/jmbi.1999.2742
  • Primary Citation of Related Structures:  
    1CQU

  • PubMed Abstract: 
  • The N-terminal domain of the ribosomal protein L9 forms a split betaalphabeta structure with a long C-terminal helix. The folding transitions of a 56 residue version of this protein have previously been characterized, here we report the results of a study of a truncation mutant corresponding to residues 1-51 ...

    The N-terminal domain of the ribosomal protein L9 forms a split betaalphabeta structure with a long C-terminal helix. The folding transitions of a 56 residue version of this protein have previously been characterized, here we report the results of a study of a truncation mutant corresponding to residues 1-51. The 51 residue protein adopts the same fold as the 56 residue protein as judged by CD and two-dimensional NMR, but it is less stable as judged by chemical and thermal denaturation experiments. Studies with synthetic peptides demonstrate that the C-terminal helix of the 51 residue version has very little propensity to fold in isolation in contrast to the C-terminal helix of the 56 residue variant. The folding rates of the two proteins, as measured by stopped-flow fluorescence, are essentially identical, indicating that formation of local structure in the C-terminal helix is not involved in the rate-limiting step of folding.


    Related Citations: 
    • Crystal Structure of Prokaryotic Ribosomal Protein L9: A Bi-Lobed RNA-Binding Protein
      Hoffman, D.W., Cameron, C., Davies, C., Gerchman, S.E., Kycia, J.H., Porter, S., Ramakrishnan, V., White, S.W.
      (1994) Eur J Biochem 13: 205

    Organizational Affiliation

    Department of Chemistry, State University of New York at Stony Brook, Stony Brook, NY 11794-3400, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
50S RIBOSOMAL PROTEIN L9A56Geobacillus stearothermophilusMutation(s): 0 
Gene Names: rplI
UniProt
Find proteins for P02417 (Geobacillus stearothermophilus)
Explore P02417 
Go to UniProtKB:  P02417
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP02417
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 18 
  • Selection Criteria: structures with the least restraint violations 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-04-27
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations