5OQQ

Crystal structure of the S. cerevisiae condensin Ycg1-Brn1 subcomplex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.79 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Basis for a Safety-Belt Mechanism That Anchors Condensin to Chromosomes.

Kschonsak, M.Merkel, F.Bisht, S.Metz, J.Rybin, V.Hassler, M.Haering, C.H.

(2017) Cell 171: 588-600.e24

  • DOI: 10.1016/j.cell.2017.09.008
  • Primary Citation of Related Structures:  
    5OQP, 5OQO, 5OQR, 5OQQ, 5OQN

  • PubMed Abstract: 
  • Condensin protein complexes coordinate the formation of mitotic chromosomes and thereby ensure the successful segregation of replicated genomes. Insights into how condensin complexes bind to chromosomes and alter their topology are essential for understanding the molecular principles behind the large-scale chromatin rearrangements that take place during cell divisions ...

    Condensin protein complexes coordinate the formation of mitotic chromosomes and thereby ensure the successful segregation of replicated genomes. Insights into how condensin complexes bind to chromosomes and alter their topology are essential for understanding the molecular principles behind the large-scale chromatin rearrangements that take place during cell divisions. Here, we identify a direct DNA-binding site in the eukaryotic condensin complex, which is formed by its Ycg1 Cnd3 HEAT-repeat and Brn1 Cnd2 kleisin subunits. DNA co-crystal structures reveal a conserved, positively charged groove that accommodates the DNA double helix. A peptide loop of the kleisin subunit encircles the bound DNA and, like a safety belt, prevents its dissociation. Firm closure of the kleisin loop around DNA is essential for the association of condensin complexes with chromosomes and their DNA-stimulated ATPase activity. Our data suggest a sophisticated molecular basis for anchoring condensin complexes to chromosomes that enables the formation of large-sized chromatin loops.


    Organizational Affiliation

    Cell Biology and Biophysics Unit, Structural and Computational Biology Unit, European Molecular Biology Laboratory (EMBL), Meyerhofstraße 1, 69117 Heidelberg, Germany. Electronic address: christian.haering@embl.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Condensin complex subunit 3 AB871Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: YCG1YCS5YDR325W
Find proteins for Q06680 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore Q06680 
Go to UniProtKB:  Q06680
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Condensin complex subunit 2 CD152Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: BRN1YBL097WYBL0830
Find proteins for P38170 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Explore P38170 
Go to UniProtKB:  P38170
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.79 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.205 
  • R-Value Observed: 0.206 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 185.534α = 90
b = 185.534β = 90
c = 148.321γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
SCALAdata scaling
PHENIXphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermany5853/2
European Research CouncilERC-2015-CoG 681365

Revision History  (Full details and data files)

  • Version 1.0: 2017-10-18
    Type: Initial release
  • Version 1.1: 2017-11-01
    Changes: Database references
  • Version 1.2: 2018-01-24
    Changes: Source and taxonomy