1Z3I

Structure of the SWI2/SNF2 chromatin remodeling domain of eukaryotic Rad54

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Structure of the SWI2/SNF2 chromatin-remodeling domain of eukaryotic Rad54.

Thoma, N.H., Czyzewski, B.K., Alexeev, A.A., Mazin, A.V., Kowalczykowski, S.C., Pavletich, N.P.

(2005) Nat Struct Mol Biol 12: 350-356

  • DOI: 10.1038/nsmb919
  • Primary Citation of Related Structures:  
    1Z3I

  • PubMed Abstract: 

    • SWI2/SNF2 chromatin-remodeling proteins mediate the mobilization of nucleosomes and other DNA-associated proteins. SWI2/SNF2 proteins contain sequence motifs characteristic of SF2 helicases but do not have helicase activity. Instead, they couple ATP hydrolysis with the generation of superhelical torsion in DNA ...

    SWI2/SNF2 chromatin-remodeling proteins mediate the mobilization of nucleosomes and other DNA-associated proteins. SWI2/SNF2 proteins contain sequence motifs characteristic of SF2 helicases but do not have helicase activity. Instead, they couple ATP hydrolysis with the generation of superhelical torsion in DNA. The structure of the nucleosome-remodeling domain of zebrafish Rad54, a protein involved in Rad51-mediated homologous recombination, reveals that the core of the SWI2/SNF2 enzymes consist of two alpha/beta-lobes similar to SF2 helicases. The Rad54 helicase lobes contain insertions that form two helical domains, one within each lobe. These insertions contain SWI2/SNF2-specific sequence motifs likely to be central to SWI2/SNF2 function. A broad cleft formed by the two lobes and flanked by the helical insertions contains residues conserved in SWI2/SNF2 proteins and motifs implicated in DNA-binding by SF2 helicases. The Rad54 structure suggests that SWI2/SNF2 proteins use a mechanism analogous to helicases to translocate on dsDNA.

    Organizational Affiliation: 

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
similar to RAD54-likeA [auth X]644Danio rerioMutation(s): 0 
Gene Names: rad54l
EC: 3.6.4.12
UniProt
Find proteins for F1Q8K0 (Danio rerio)
Explore F1Q8K0 
Go to UniProtKB:  F1Q8K0
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.234 
  • R-Value Work: 0.198 
  • R-Value Observed: 0.200 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 205.046α = 90
b = 205.046β = 90
c = 189.958γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
DENZOdata reduction
SCALEPACKdata scaling
SHELXSphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-04-05
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance