5O9E

Crystal structure of the Imp4-Mpp10 complex from Chaetomium thermophilum


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.88 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.185 

Starting Model: experimental
View more details

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Mpp10 represents a platform for the interaction of multiple factors within the 90S pre-ribosome.

Sa-Moura, B.Kornprobst, M.Kharde, S.Ahmed, Y.L.Stier, G.Kunze, R.Sinning, I.Hurt, E.

(2017) PLoS One 12: e0183272-e0183272

  • DOI: https://doi.org/10.1371/journal.pone.0183272
  • Primary Citation of Related Structures:  
    5O9E

  • PubMed Abstract: 

    In eukaryotes, ribosome assembly is a highly complex process that involves more than 200 assembly factors that ensure the folding, modification and processing of the different rRNA species as well as the timely association of ribosomal proteins. One of these factors, Mpp10 associates with Imp3 and Imp4 to form a complex that is essential for the normal production of the 18S rRNA. Here we report the crystal structure of a complex between Imp4 and a short helical element of Mpp10 to a resolution of 1.88 Å. Furthermore, we extend the interaction network of Mpp10 and characterize two novel interactions. Mpp10 is able to bind the ribosome biogenesis factor Utp3/Sas10 through two conserved motifs in its N-terminal region. In addition, Mpp10 interacts with the ribosomal protein S5/uS7 using a short stretch within an acidic loop region. Thus, our findings reveal that Mpp10 provides a platform for the simultaneous interaction with multiple proteins in the 90S pre-ribosome.


  • Organizational Affiliation

    Biochemistry Center Heidelberg BZH, University of Heidelberg, Heidelberg, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Putative U3 small nucleolar ribonucleoprotein201Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0062900
UniProt
Find proteins for G0SE90 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0SE90 
Go to UniProtKB:  G0SE90
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0SE90
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Putative U3 small nucleolar ribonucleoprotein protein131Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0046030
UniProt
Find proteins for G0S9I7 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0S9I7 
Go to UniProtKB:  G0S9I7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupG0S9I7
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
EDO
Query on EDO

Download Ideal Coordinates CCD File 
C [auth A]1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.88 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.184 
  • R-Value Observed: 0.185 
  • Space Group: P 64
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 112.89α = 90
b = 112.89β = 90
c = 44γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2017-08-30
    Type: Initial release
  • Version 1.1: 2019-10-16
    Changes: Data collection
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Refinement description