4RSJ

Pyrococcus furiosus Smc hinge domain with an extended coiled coil

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.236 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Molecular Basis for SMC Rod Formation and Its Dissolution upon DNA Binding.

Soh, Y.M., Burmann, F., Shin, H.C., Oda, T., Jin, K.S., Toseland, C.P., Kim, C., Lee, H., Kim, S.J., Kong, M.S., Durand-Diebold, M.L., Kim, Y.G., Kim, H.M., Lee, N.K., Sato, M., Oh, B.H., Gruber, S.

(2015) Mol Cell 57: 290-303

  • DOI: 10.1016/j.molcel.2014.11.023
  • Primary Citation of Related Structures:  
    4RSI, 4RSJ

  • PubMed Abstract: 

    • SMC condensin complexes are central modulators of chromosome superstructure in all branches of life. Their SMC subunits form a long intramolecular coiled coil, which connects a constitutive "hinge" dimerization domain with an ATP-regulated "head" dimerization module ...

    SMC condensin complexes are central modulators of chromosome superstructure in all branches of life. Their SMC subunits form a long intramolecular coiled coil, which connects a constitutive "hinge" dimerization domain with an ATP-regulated "head" dimerization module. Here, we address the structural arrangement of the long coiled coils in SMC complexes. We unequivocally show that prokaryotic Smc-ScpAB, eukaryotic condensin, and possibly also cohesin form rod-like structures, with their coiled coils being closely juxtaposed and accurately anchored to the hinge. Upon ATP-induced binding of DNA to the hinge, however, Smc switches to a more open configuration. Our data suggest that a long-distance structural transition is transmitted from the Smc head domains to regulate Smc-ScpAB's association with DNA. These findings uncover a conserved architectural theme in SMC complexes, provide a mechanistic basis for Smc's dynamic engagement with chromosomes, and offer a molecular explanation for defects in Cornelia de Lange syndrome.

    Organizational Affiliation: 

    Chromosome Organisation and Dynamics, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152 Martinsried, Germany. Electronic address: sgruber@biochem.mpg.de.



Macromolecules
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(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Chromosome partition protein SmcA, B, C, D276Pyrococcus furiosus DSM 3638Mutation(s): 0 
Gene Names: smc, PF1843
UniProt
Find proteins for Q8TZY2 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Explore Q8TZY2 
Go to UniProtKB:  Q8TZY2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8TZY2
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.284 
  • R-Value Work: 0.236 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 101.923α = 90
b = 116.882β = 90
c = 145.493γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHENIXmodel building
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2014-12-31
    Type: Initial release
  • Version 1.1: 2015-02-11
    Changes: Database references