1Z63

Sulfolobus solfataricus SWI2/SNF2 ATPase core in complex with dsDNA

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.233 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history. 


Literature

X-ray structures of the Sulfolobus solfataricus SWI2/SNF2 ATPase core and its complex with DNA.

Durr, H., Korner, C., Muller, M., Hickmann, V., Hopfner, K.P.

(2005) Cell 121: 363-373

  • DOI: 10.1016/j.cell.2005.03.026
  • Primary Citation of Related Structures:  
    1Z5Z, 1Z63, 1Z6A

  • PubMed Abstract: 

    • SWI2/SNF2 ATPases remodel chromatin or other DNA:protein complexes by a poorly understood mechanism that involves ATP-dependent DNA translocation and generation of superhelical torsion. Crystal structures of a dsDNA-translocating SWI2/SNF2 ATPase core from Sulfolobus solfataricus reveal two helical SWI2/SNF2 specific subdomains, fused to a DExx box helicase-related ATPase core ...

    SWI2/SNF2 ATPases remodel chromatin or other DNA:protein complexes by a poorly understood mechanism that involves ATP-dependent DNA translocation and generation of superhelical torsion. Crystal structures of a dsDNA-translocating SWI2/SNF2 ATPase core from Sulfolobus solfataricus reveal two helical SWI2/SNF2 specific subdomains, fused to a DExx box helicase-related ATPase core. Fully base paired duplex DNA binds along a central cleft via both minor groove strands, indicating that SWI2/SNF2 ATPases travel along the dsDNA minor groove without strand separation. A structural switch, linking DNA binding and the active site DExx motif, may account for the stimulation of ATPase activity by dsDNA. Our results suggest that torque in remodeling processes is generated by an ATP-driven screw motion of DNA along the active site cleft. The structures also redefine SWI2/SNF2 functional motifs and uncover unexpected structural correlation of mutations in Cockayne and X-linked mental retardation syndromes.

    Organizational Affiliation: 

    Gene Center and Department of Chemistry and Biochemistry, University of Munich, Feodor-Lynen-Strasse 25, 81377 Munich, Germany.



Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Helicase of the snf2/rad54 familyE [auth A],
F [auth B]		500Saccharolobus solfataricusMutation(s): 0 
UniProt
Find proteins for Q97XQ7 (Saccharolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Explore Q97XQ7 
Go to UniProtKB:  Q97XQ7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ97XQ7
Protein Feature View
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  • Reference Sequence

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Entity ID: 1
MoleculeChainsLengthOrganismImage
5'-D(*AP*AP*AP*AP*AP*A*AP*TP*TP*GP*CP*CP*GP*AP*AP*GP*AP*CP*GP*AP*AP*AP*AP*AP*A)-3'A [auth C],
C [auth E]		25N/A
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsLengthOrganismImage
5'-D(*TP*TP*TP*TP*TP*TP*TP*CP*GP*TP*CP*TP*TP*CP*GP*GP*CP*AP*AP*TP*TP*TP*TP*TP*T)-3'B [auth D],
D [auth F]		25N/A
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE		E [auth A],
F [auth B]		L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.281 
  • R-Value Work: 0.233 
  • R-Value Observed: 0.233 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.931α = 90
b = 83.737β = 109.78
c = 106.39γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
XDSdata reduction
AMoREphasing
CNSrefinement
HKL-2000data reduction
XDSdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-05-17
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2014-04-16
    Changes: Experimental preparation
  • Version 1.4: 2017-08-23
    Changes: Advisory, Refinement description, Source and taxonomy