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Structure of the Ndc80 complex and its interactions at the yeast kinetochore–microtubule interface

Journal Article · · Open Biology
DOI:https://doi.org/10.1098/rsob.220378· OSTI ID:2469543
The conserved Ndc80 kinetochore complex, Ndc80c, is the principal link between mitotic spindle microtubules and centromere-associated proteins. We used AlphaFold 2 (AF2) to obtain predictions of the Ndc80 ‘loop’ structure and of the Ndc80 : Nuf2 globular head domains that interact with the Dam1 subunit of the heterodecameric DASH/Dam1 complex (Dam1c). The predictions guided design of crystallizable constructs, with structures close to the predicted ones. The Ndc80 ‘loop’ is a stiff, α-helical ‘switchback’ structure; AF2 predictions and positions of preferential cleavage sites indicate that flexibility within the long Ndc80c rod occurs instead at a hinge closer to the globular head. Conserved stretches of the Dam1 C terminus bind Ndc80c such that phosphorylation of Dam1 serine residues 257, 265 and 292 by the mitotic kinase Ipl1/Aurora B can release this contact during error correction of mis-attached kinetochores. We integrate the structural results presented here into our current molecular model of the kinetochore–microtubule interface. The model illustrates how multiple interactions between Ndc80c, DASH/Dam1c and the microtubule lattice stabilize kinetochore attachments.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
American Cancer Society; National Institutes of Health (NIH); USDOE
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
2469543
Journal Information:
Open Biology, Journal Name: Open Biology Journal Issue: 3 Vol. 13; ISSN 2046-2441
Publisher:
The Royal SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (69)

Phospho-Regulation of Kinetochore-Microtubule Attachments by the Aurora Kinase Ipl1p journal October 2002
Implications for Kinetochore-Microtubule Attachment from the Structure of an Engineered Ndc80 Complex journal May 2008
A TOG Protein Confers Tension Sensitivity to Kinetochore-Microtubule Attachments journal June 2016
Structure of the MIND Complex Defines a Regulatory Focus for Yeast Kinetochore Assembly journal November 2016
Conserved Tetramer Junction in the Kinetochore Ndc80 Complex journal November 2016
Mps1 Phosphorylation of Dam1 Couples Kinetochores to Microtubule Plus Ends at Metaphase journal August 2006
Ndc80 Internal Loop Interacts with Dis1/TOG to Ensure Proper Kinetochore-Spindle Attachment in Fission Yeast journal February 2011
The Ndc80 Loop Region Facilitates Formation of Kinetochore Attachment to the Dynamic Microtubule Plus End journal February 2011
Lateral to End-on Conversion of Chromosome-Microtubule Attachment Requires Kinesins CENP-E and MCAK journal August 2013
Cdk1 Phosphorylation of the Dam1 Complex Strengthens Kinetochore-Microtubule Attachments journal November 2020
Architecture and Flexibility of the Yeast Ndc80 Kinetochore Complex journal November 2008
The HADDOCK2.2 Web Server: User-Friendly Integrative Modeling of Biomolecular Complexes journal February 2016
Formation of a Dynamic Kinetochore- Microtubule Interface through Assembly of the Dam1 Ring Complex journal January 2005
Structure of a Central Component of the Yeast Kinetochore: The Spc24p/Spc25p Globular Domain journal June 2006
CENP-T provides a structural platform for outer kinetochore assembly journal January 2013
A structural basis for kinetochore recruitment of the Ndc80 complex via two distinct centromere receptors journal January 2013
Stabilization of microtubule dynamics at anaphase onset promotes chromosome segregation journal January 2005
Molecular mechanisms of kinetochore capture by spindle microtubules journal April 2005
The Ndc80 kinetochore complex forms oligomeric arrays along microtubules journal October 2010
Kinetochores require oligomerization of Dam1 complex to maintain microtubule attachments against tension and promote biorientation journal September 2014
A quantitative description of Ndc80 complex linkage to human kinetochores journal September 2015
The Ndc80/HEC1 complex is a contact point for kinetochore-microtubule attachment journal December 2006
The yeast DASH complex forms closed rings on microtubules journal January 2005
Highly accurate protein structure prediction with AlphaFold journal July 2021
The phosphorylation of a kinetochore protein Dam1 by Aurora B/Ipl1 kinase promotes chromosome bipolar attachment in yeast journal September 2017
Microtubule depolymerization can drive poleward chromosome motion in fission yeast journal October 2006
Molecular organization of the Ndc80 complex, an essential kinetochore component journal April 2005
Phosphoregulation promotes release of kinetochores from dynamic microtubules via multiple mechanisms journal April 2013
Architecture of the Human Ndc80-Hec1 Complex, a Critical Constituent of the Outer Kinetochore journal June 2005
Structural Analysis of Multiprotein Complexes by Cross-linking, Mass Spectrometry, and Database Searching journal October 2007
Mitotic Spindle Integrity and Kinetochore Function Linked by the Duo1p/Dam1p Complex journal January 2001
Molecular mechanisms of microtubule-dependent kinetochore transport toward spindle poles journal July 2007
Cooperation of the Dam1 and Ndc80 kinetochore complexes enhances microtubule coupling and is regulated by aurora B journal May 2010
The Dam1 complex confers microtubule plus end–tracking activity to the Ndc80 kinetochore complex journal May 2010
Conserved and divergent features of kinetochores and spindle microtubule ends from five species journal February 2013
Molecular requirements for the formation of a kinetochore–microtubule interface by Dam1 and Ndc80 complexes journal December 2012
Structural differences between yeast and mammalian microtubules revealed by cryo-EM journal June 2017
Three interacting regions of the Ndc80 and Dam1 complexes support microtubule tip-coupling under load journal March 2022
Electron tomography reveals aspects of spindle structure important for mechanical stability at metaphase journal February 2020
Protein Arms in the Kinetochore-Microtubule Interface of the Yeast DASH Complex journal July 2007
The Dam1 ring binds to the E-hook of tubulin and diffuses along the microtubule journal February 2011
Coiled-coil networking shapes cell molecular machinery journal October 2012
The internal loop of fission yeast Ndc80 binds Alp7/TACC-Alp14/TOG and ensures proper chromosome attachment journal April 2013
Unique Phylogenetic Distributions of the Ska and Dam1 Complexes Support Functional Analogy and Suggest Multiple Parallel Displacements of Ska by Dam1 journal May 2017
Molecular architecture of the Dam1 complex–microtubule interaction journal March 2016
Kinetochore–microtubule interaction during S phase in Saccharomyces cerevisiae journal December 2007
Molecular Structures of Yeast Kinetochore Subcomplexes and Their Roles in Chromosome Segregation journal January 2017
Phaser crystallographic software journal July 2007
Improved methods for building protein models in electron density maps and the location of errors in these models journal March 1991
Optimal description of a protein structure in terms of multiple groups undergoing TLS motion journal March 2006
MolProbity : all-atom structure validation for macromolecular crystallography journal December 2009
PHENIX: a comprehensive Python-based system for macromolecular structure solution journal January 2010
Features and development of Coot journal March 2010
Overview of the CCP 4 suite and current developments journal March 2011
FEM: feature-enhanced map journal February 2015
Real-space refinement in PHENIX for cryo-EM and crystallography journal May 2018
xia2.multiplex: a multi-crystal data-analysis pipeline journal May 2022
CCP4 Cloud for structure determination and project management in macromolecular crystallography journal August 2022
Structure of the DASH/Dam1 complex shows its role at the yeast kinetochore-microtubule interface journal May 2018
Ipl1-dependent phosphorylation of Dam1 is reduced by tension applied on kinetochores journal December 2009
Kinetochore-associated Stu2 promotes chromosome biorientation in vivo journal October 2019
RosettaRemodel: A Generalized Framework for Flexible Backbone Protein Design journal August 2011
Kinetochore Biorientation in Saccharomyces cerevisiae Requires a Tightly Folded Conformation of the Ndc80 Complex journal September 2014
The DASH Complex Component Ask1 Is a Cell Cycle-Regulated Cdk Substrate inSaccharomyces cerevisiae journal March 2003
Molecular basis of outer kinetochore assembly on CENP-T journal December 2016
The Ndc80 complex bridges two Dam1 complex rings journal February 2017
chTOG is a conserved mitotic error correction factor journal December 2020
Structural basis of Stu2 recruitment to yeast kinetochores journal February 2021
Three-dimensional structure of kinetochore-fibers in human mitotic spindles journal July 2022

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