1G5V

SOLUTION STRUCTURE OF THE TUDOR DOMAIN OF THE HUMAN SMN PROTEIN


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

SMN tudor domain structure and its interaction with the Sm proteins.

Selenko, P.Sprangers, R.Stier, G.Buhler, D.Fischer, U.Sattler, M.

(2001) Nat.Struct.Mol.Biol. 8: 27-31

  • DOI: 10.1038/83014

  • PubMed Abstract: 
  • Spinal muscular atrophy (SMA) is a common motor neuron disease that results from mutations in the Survival of Motor Neuron (SMN) gene. The SMN protein plays a crucial role in the assembly of spliceosomal uridine-rich small nuclear ribonucleoprotein ( ...

    Spinal muscular atrophy (SMA) is a common motor neuron disease that results from mutations in the Survival of Motor Neuron (SMN) gene. The SMN protein plays a crucial role in the assembly of spliceosomal uridine-rich small nuclear ribonucleoprotein (U snRNP) complexes via binding to the spliceosomal Sm core proteins. SMN contains a central Tudor domain that facilitates the SMN-Sm protein interaction. A SMA-causing point mutation (E134K) within the SMN Tudor domain prevents Sm binding. Here, we have determined the three-dimensional structure of the Tudor domain of human SMN. The structure exhibits a conserved negatively charged surface that is shown to interact with the C-terminal Arg and Gly-rich tails of Sm proteins. The E134K mutation does not disrupt the Tudor structure but affects the charge distribution within this binding site. An intriguing structural similarity between the Tudor domain and the Sm proteins suggests the presence of an additional binding interface that resembles that in hetero-oligomeric complexes of Sm proteins. Our data provide a structural basis for a molecular defect underlying SMA.


    Organizational Affiliation

    Structural and Computational Biology, EMBL, Meyerhofstr. 1, D-69012 Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SURVIVAL MOTOR NEURON PROTEIN 1
A
88Homo sapiensMutation(s): 0 
Gene Names: SMN1, SMN2 (SMN, SMNT, SMNC)
Find proteins for Q16637 (Homo sapiens)
Go to Gene View: SMN1 SMN2
Go to UniProtKB:  Q16637
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: back calculated data agree with experimental NOESY spectrum,structures with acceptable covalent geometry,structures with favorable non-bond energy,structures with the least restraint violations,structures with the lowest energy 
  • Olderado: 1G5V Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-05-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance