6Q6E

Structural and functional insights into the condensin ATPase cycle


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural Basis of an Asymmetric Condensin ATPase Cycle.

Hassler, M.Shaltiel, I.A.Kschonsak, M.Simon, B.Merkel, F.Tharichen, L.Bailey, H.J.Macosek, J.Bravo, S.Metz, J.Hennig, J.Haering, C.H.

(2019) Mol Cell 74: 1175-1188.e9

  • DOI: https://doi.org/10.1016/j.molcel.2019.03.037
  • Primary Citation of Related Structures:  
    6Q6E, 6QJ0, 6QJ1, 6QJ2, 6QJ3, 6QJ4

  • PubMed Abstract: 

    The condensin protein complex plays a key role in the structural organization of genomes. How the ATPase activity of its SMC subunits drives large-scale changes in chromosome topology has remained unknown. Here we reconstruct, at near-atomic resolution, the sequence of events that take place during the condensin ATPase cycle. We show that ATP binding induces a conformational switch in the Smc4 head domain that releases its hitherto undescribed interaction with the Ycs4 HEAT-repeat subunit and promotes its engagement with the Smc2 head into an asymmetric heterodimer. SMC head dimerization subsequently enables nucleotide binding at the second active site and disengages the Brn1 kleisin subunit from the Smc2 coiled coil to open the condensin ring. These large-scale transitions in the condensin architecture lay out a mechanistic path for its ability to extrude DNA helices into large loop structures.


  • Organizational Affiliation

    Cell Biology and Biophysics Unit, European Molecular Biology Laboratory, 69117 Heidelberg, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Condensin complex subunit 2,Structural maintenance of chromosomes protein,Structural maintenance of chromosomes protein221Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0053810CTHT_0033000
UniProt
Find proteins for G0SBJ6 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0SBJ6 
Go to UniProtKB:  G0SBJ6
Find proteins for G0S5H7 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
Explore G0S5H7 
Go to UniProtKB:  G0S5H7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsG0SBJ6G0S5H7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2019-07-03
    Type: Initial release
  • Version 1.1: 2023-06-14
    Changes: Data collection, Database references, Other
  • Version 1.2: 2024-06-19
    Changes: Data collection, Database references