7QPG

Human RZZ kinetochore corona complex.


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of the RZZ complex and molecular basis of Spindly-driven corona assembly at human kinetochores.

Raisch, T.Ciossani, G.d'Amico, E.Cmentowski, V.Carmignani, S.Maffini, S.Merino, F.Wohlgemuth, S.Vetter, I.R.Raunser, S.Musacchio, A.

(2022) EMBO J 41: e110411-e110411

  • DOI: 10.15252/embj.2021110411
  • Primary Citation of Related Structures:  
    7QPG

  • PubMed Abstract: 
  • In metazoans, a ≈1 megadalton (MDa) multiprotein complex comprising the dynein-dynactin adaptor Spindly and the ROD-Zwilch-ZW10 (RZZ) complex is the building block of a fibrous biopolymer, the kinetochore fibrous corona. The corona assembles on mitotic kinetochores to promote microtubule capture and spindle assembly checkpoint (SAC) signaling ...

    In metazoans, a ≈1 megadalton (MDa) multiprotein complex comprising the dynein-dynactin adaptor Spindly and the ROD-Zwilch-ZW10 (RZZ) complex is the building block of a fibrous biopolymer, the kinetochore fibrous corona. The corona assembles on mitotic kinetochores to promote microtubule capture and spindle assembly checkpoint (SAC) signaling. We report here a high-resolution cryo-EM structure that captures the essential features of the RZZ complex, including a farnesyl-binding site required for Spindly binding. Using a highly predictive in vitro assay, we demonstrate that the SAC kinase MPS1 is necessary and sufficient for corona assembly at supercritical concentrations of the RZZ-Spindly (RZZS) complex, and describe the molecular mechanism of phosphorylation-dependent filament nucleation. We identify several structural requirements for RZZS polymerization in rings and sheets. Finally, we identify determinants of kinetochore localization and corona assembly of Spindly. Our results describe a framework for the long-sought-for molecular basis of corona assembly on metazoan kinetochores.


    Organizational Affiliation

    Centre for Medical Biotechnology, Faculty of Biology, University Duisburg-Essen, Essen, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Protein zwilch homologA [auth B],
B [auth C]
591Homo sapiensMutation(s): 0 
Gene Names: ZWILCH
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H900 (Homo sapiens)
Explore Q9H900 
Go to UniProtKB:  Q9H900
PHAROS:  Q9H900
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9H900
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Kinetochore-associated protein 1C [auth R],
D [auth S]
2,464Homo sapiensMutation(s): 0 
Gene Names: DS885_16260KNTC1KIAA0166
UniProt & NIH Common Fund Data Resources
Find proteins for A0A366VY15 (Psychromonas sp. B3M02)
Explore A0A366VY15 
Go to UniProtKB:  A0A366VY15
Find proteins for P50748 (Homo sapiens)
Explore P50748 
Go to UniProtKB:  P50748
PHAROS:  P50748
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsP50748A0A366VY15
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Centromere/kinetochore protein zw10 homologE [auth W],
F [auth X]
779Homo sapiensMutation(s): 0 
Gene Names: ZW10
UniProt & NIH Common Fund Data Resources
Find proteins for O43264 (Homo sapiens)
Explore O43264 
Go to UniProtKB:  O43264
PHAROS:  O43264
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO43264
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Max Planck SocietyGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2022-03-16
    Type: Initial release
  • Version 1.1: 2022-04-20
    Changes: Database references
  • Version 1.2: 2022-04-27
    Changes: Structure summary
  • Version 1.3: 2022-05-11
    Changes: Database references