6CFZ | pdb_00006cfz

Structure of the DASH/Dam1 complex shows its role at the yeast kinetochore-microtubule interface

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: SINGLE PARTICLE 

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

Literature

Structure of the DASH/Dam1 complex shows its role at the yeast kinetochore-microtubule interface.

Jenni, S., Harrison, S.C.

(2018) Science 360: 552-558

  • DOI: https://doi.org/10.1126/science.aar6436
  • Primary Citation Related Structures: 
    6CFZ

  • PubMed Abstract: 

    Kinetochores connect mitotic-spindle microtubules with chromosomes, allowing microtubule depolymerization to pull chromosomes apart during anaphase while resisting detachment as the microtubule shortens. The heterodecameric DASH/Dam1 complex (DASH/Dam1c), an essential component of yeast kinetochores, assembles into a microtubule-encircling ring. The ring associates with rodlike Ndc80 complexes to organize the kinetochore-microtubule interface. We report the cryo-electron microscopy structure (at ~4.5-angstrom resolution) of a DASH/Dam1c ring and a molecular model of its ordered components, validated by evolutionary direct-coupling analysis. Integrating this structure with that of the Ndc80 complex and with published interaction data yields a molecular picture of kinetochore-microtubule attachment, including how flexible, C-terminal extensions of DASH/Dam1c subunits project and contact widely separated sites on the Ndc80 complex rod and how phosphorylation at previously identified sites might regulate kinetochore assembly.

    • Organizational Affiliation: 
    • Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 250 Longwood Avenue, Boston, MA 02115, USA.

Macromolecule Content 

  • Total Structure Weight: 116.15 kDa 
  • Atom Count: 5,990 
  • Modeled Residue Count: 761 
  • Deposited Residue Count: 1,026 
  • Unique protein chains: 10

Macromolecules

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Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Ask177Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0029740
UniProt
Find proteins for G0S8F9 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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UniProt GroupG0S8F9
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Reference Sequence
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Entity ID: 2
MoleculeChains  Sequence LengthOrganismDetailsImage
Dad367Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0005680
UniProt
Find proteins for G0RY74 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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UniProt GroupG0RY74
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Reference Sequence
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Entity ID: 3
MoleculeChains  Sequence LengthOrganismDetailsImage
Dad294Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0002350
UniProt
Find proteins for G0RZB3 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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UniProt GroupG0RZB3
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Reference Sequence
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Entity ID: 4
MoleculeChains  Sequence LengthOrganismDetailsImage
Duo1111Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0042930
UniProt
Find proteins for G0SAN7 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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UniProt GroupG0SAN7
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Reference Sequence
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Entity ID: 5
MoleculeChains  Sequence LengthOrganismDetailsImage
Dad472Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0032660
UniProt
Find proteins for G0S589 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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UniProt GroupG0S589
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Reference Sequence
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Entity ID: 6
MoleculeChains  Sequence LengthOrganismDetailsImage
Dad1,Dad192Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0006450
UniProt
Find proteins for G0RYE9 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Reference Sequence
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Entity ID: 7
MoleculeChains  Sequence LengthOrganismDetailsImage
Hsk361Thermochaetoides thermophilaMutation(s): 0 
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Entity ID: 8
MoleculeChains  Sequence LengthOrganismDetailsImage
Dam156Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0017540
UniProt
Find proteins for G0S2K4 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Reference Sequence
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Entity ID: 9
MoleculeChains  Sequence LengthOrganismDetailsImage
Spc19151Thermochaetoides thermophilaMutation(s): 0 
Gene Names: CTHT_0010600
UniProt
Find proteins for G0S0N0 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Reference Sequence
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Entity ID: 10
MoleculeChains  Sequence LengthOrganismDetailsImage
Spc34245Thermochaetoides thermophila DSM 1495Mutation(s): 0 
Gene Names: CTHT_0016520
UniProt
Find proteins for G0S2A3 (Chaetomium thermophilum (strain DSM 1495 / CBS 144.50 / IMI 039719))
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Reference Sequence

Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.50 Å
  • Aggregation State: HELICAL ARRAY 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcisTEM
MODEL REFINEMENTRosetta
MODEL REFINEMENTPHENIX1.12

Structure Validation

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Entry History 

& Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Damon Runyon Cancer Research FoundationUnited StatesDRG-2004-09

Revision History  (Full details and data files)

  • Version 1.0: 2018-05-02
    Type: Initial release
  • Version 1.1: 2018-05-16
    Changes: Data collection, Data processing
  • Version 1.2: 2018-05-23
    Changes: Data collection, Database references
  • Version 1.3: 2019-11-27
    Changes: Data collection
  • Version 1.4: 2024-03-13
    Changes: Data collection, Database references, Derived calculations