4RSI

Yeast Smc2-Smc4 hinge domain with extended coiled coils


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.223 

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:  

  • 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" dim ...

    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

    Department of Biological Sciences, KAIST Institute for the Biocentury, Cancer Metastasis Control Center, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Structural maintenance of chromosomes protein 2
A
397Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SMC2
Find proteins for P38989 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: SMC2
Go to UniProtKB:  P38989
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Structural maintenance of chromosomes protein 4
B
397Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SMC4
Find proteins for Q12267 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: SMC4
Go to UniProtKB:  Q12267
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
A, B
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.266 
  • R-Value Work: 0.223 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 185.259α = 90.00
b = 49.707β = 92.52
c = 154.283γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data scaling
HKL-2000data reduction
SOLVEphasing
HKL-2000data collection
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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