4GMO

Crystal structure of Syo1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.221 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Synchronizing nuclear import of ribosomal proteins with ribosome assembly.

Kressler, D.Bange, G.Ogawa, Y.Stjepanovic, G.Bradatsch, B.Pratte, D.Amlacher, S.Strauss, D.Yoneda, Y.Katahira, J.Sinning, I.Hurt, E.

(2012) Science 338: 666-671

  • DOI: 10.1126/science.1226960
  • Primary Citation of Related Structures:  
    4GMN, 4GMO

  • PubMed Abstract: 
  • Ribosomal proteins are synthesized in the cytoplasm, before nuclear import and assembly with ribosomal RNA (rRNA). Little is known about coordination of nucleocytoplasmic transport with ribosome assembly. Here, we identify a transport adaptor, symportin 1 (Syo1), that facilitates synchronized coimport of the two 5S-rRNA binding proteins Rpl5 and Rpl11 ...

    Ribosomal proteins are synthesized in the cytoplasm, before nuclear import and assembly with ribosomal RNA (rRNA). Little is known about coordination of nucleocytoplasmic transport with ribosome assembly. Here, we identify a transport adaptor, symportin 1 (Syo1), that facilitates synchronized coimport of the two 5S-rRNA binding proteins Rpl5 and Rpl11. In vitro studies revealed that Syo1 concomitantly binds Rpl5-Rpl11 and furthermore recruits the import receptor Kap104. The Syo1-Rpl5-Rpl11 import complex is released from Kap104 by RanGTP and can be directly transferred onto the 5S rRNA. Syo1 can shuttle back to the cytoplasm by interaction with phenylalanine-glycine nucleoporins. X-ray crystallography uncovered how the α-solenoid symportin accommodates the Rpl5 amino terminus, normally bound to 5S rRNA, in an extended groove. Symportin-mediated coimport of Rpl5-Rpl11 could ensure coordinated and stoichiometric incorporation of these proteins into pre-60S ribosomes.


    Organizational Affiliation

    Biochemie-Zentrum der Universität Heidelberg, Im Neuenheimer Feld 328, Heidelberg D-69120, Germany. dieter.kressler@unifr.ch



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Putative uncharacterized proteinA684Chaetomium thermophilum var. thermophilum DSM 1495Mutation(s): 0 
Gene Names: CTHT_0033460Syo1
UniProt
Find proteins for G0S5S6 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0S5S6 
Go to UniProtKB:  G0S5S6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0S5S6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.221 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 166.43α = 90
b = 59.73β = 97.71
c = 69.55γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
PHASESphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-10-31
    Type: Initial release
  • Version 1.1: 2012-11-14
    Changes: Database references