1Y96

crystal structure of the Gemin6/Gemin7 heterodimer from the human SMN complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.002 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Gemin6-Gemin7 Heterodimer from the Survival of Motor Neurons Complex Has an Sm Protein-like Structure.

Ma, Y.Dostie, J.Dreyfuss, G.Van Duyne, G.D.

(2005) Structure 13: 883-892

  • DOI: 10.1016/j.str.2005.03.014

  • PubMed Abstract: 
  • The survival of motor neurons (SMN) protein, product of the disease gene of the common neurodegenerative disease spinal muscular atrophy, is part of the large multiprotein "SMN complex." The SMN complex functions as an assembly machine for small nucl ...

    The survival of motor neurons (SMN) protein, product of the disease gene of the common neurodegenerative disease spinal muscular atrophy, is part of the large multiprotein "SMN complex." The SMN complex functions as an assembly machine for small nuclear ribonucleoproteins (snRNPs)-the major components of the spliceosome. Here, we report the crystal structure of two components of the human SMN complex, Gemin6 and Gemin7. Although Gemin6 and Gemin7 have no significant sequence similarity with Sm proteins, both adopt canonical Sm folds. Moreover, Gemin6 and Gemin7 exist as a heterodimer, and interact with each other via an interface similar to that which mediates interactions among the Sm proteins. Together with binding experiments that show that the Gemin6/Gemin7 complex binds to Sm proteins, these findings provide a framework for considering how the SMN complex, with Gemin6 and Gemin7 as tools, might organize Sm proteins for formation of Sm rings on snRNA targets.


    Organizational Affiliation

    Department of Biochemistry and Biophysics, Howard Hughes Medical Institute, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Gem-associated protein 6
A, C
86Homo sapiensGene Names: GEMIN6
Find proteins for Q8WXD5 (Homo sapiens)
Go to Gene View: GEMIN6
Go to UniProtKB:  Q8WXD5
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Gem-associated protein 7
B, D
85Homo sapiensGene Names: GEMIN7
Find proteins for Q9H840 (Homo sapiens)
Go to Gene View: GEMIN7
Go to UniProtKB:  Q9H840
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.002 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.217 
  • Space Group: P 42 21 2
Unit Cell:
Length (Å)Angle (°)
a = 136.011α = 90.00
b = 136.011β = 90.00
c = 81.515γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
SOLVEphasing
SCALEPACKdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2005-06-21
    Type: Initial release
  • Version 1.1: 2008-04-30
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance