4BSZ

Crystal Structure of the Yeast Ribosomal Protein Rps3 in Complex with its Chaperone Yar1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.842 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.189 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal Structure of the Yeast Ribosomal Protein Rps3 in Complex with its Chaperone Yar1

Holzer, S.Ban, N.Klinge, S.

(2013) J.Mol.Biol. 425: 4154

  • DOI: 10.1016/j.jmb.2013.08.022

  • PubMed Abstract: 
  • Eukaryotic ribosome assembly involves a plethora of factors, which ensure that a correctly folded ribosome contains all ribosomal protein components. Among these assembly factors, Yar1 has recently emerged as a molecular chaperone for ribosomal prote ...

    Eukaryotic ribosome assembly involves a plethora of factors, which ensure that a correctly folded ribosome contains all ribosomal protein components. Among these assembly factors, Yar1 has recently emerged as a molecular chaperone for ribosomal protein rpS3 of the small ribosomal subunit (40S) in yeast. In complex with its chaperone, rpS3 is imported into the nucleus and protected from aggregation. How rpS3 and other ribosomal proteins are initially sequestered and subsequently integrated into pre-ribosomal particles is currently poorly understood. Here, we present the crystal structure of yeast rpS3 in complex with its chaperone Yar1 at 2.8Å resolution. The crystal structure rationalizes how Yar1 can protect rpS3 from aggregation while facilitating nuclear import and suggests a mechanism for a stepwise exchange of molecular partners that ribosomal proteins interact with during ribosome assembly.


    Organizational Affiliation

    Institute of Molecular Biology and Biophysics, Department of Biology, Eidgenössische Technische Hochschule Zürich, Schafmattstrasse 20, 8093 Zurich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
40S RIBOSOMAL PROTEIN S3
A
244Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPS3 (SUF14)
Find proteins for P05750 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: RPS3
Go to UniProtKB:  P05750
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ANKYRIN REPEAT-CONTAINING PROTEIN YAR1
B
202Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: YAR1
Find proteins for P46683 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P46683
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.842 Å
  • R-Value Free: 0.225 
  • R-Value Work: 0.189 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 104.830α = 90.00
b = 104.830β = 90.00
c = 95.960γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
PHENIXrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-04
    Type: Initial release
  • Version 1.1: 2013-09-11
    Type: Structure summary
  • Version 1.2: 2013-09-25
    Type: Database references
  • Version 1.3: 2013-11-13
    Type: Database references