2VE7

Crystal structure of a bonsai version of the human Ndc80 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.232 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Implications for Kinetochore-Microtubule Attachment from the Structure of an Engineered Ndc80 Complex

Ciferri, C.Pasqualato, S.Screpanti, E.Varetti, G.Santaguida, S.Dos Reis, G.Maiolica, A.Polka, J.De Luca, J.G.De Wulf, P.Salek, M.Rappsilber, J.Moores, C.A.Salmon, E.D.Musacchio, A.

(2008) Cell 133: 427

  • DOI: 10.1016/j.cell.2008.03.020

  • PubMed Abstract: 
  • Kinetochores are proteinaceous assemblies that mediate the interaction of chromosomes with the mitotic spindle. The 180 kDa Ndc80 complex is a direct point of contact between kinetochores and microtubules. Its four subunits contain coiled coils and f ...

    Kinetochores are proteinaceous assemblies that mediate the interaction of chromosomes with the mitotic spindle. The 180 kDa Ndc80 complex is a direct point of contact between kinetochores and microtubules. Its four subunits contain coiled coils and form an elongated rod structure with functional globular domains at either end. We crystallized an engineered "bonsai" Ndc80 complex containing a shortened rod domain but retaining the globular domains required for kinetochore localization and microtubule binding. The structure reveals a microtubule-binding interface containing a pair of tightly interacting calponin-homology (CH) domains with a previously unknown arrangement. The interaction with microtubules is cooperative and predominantly electrostatic. It involves positive charges in the CH domains and in the N-terminal tail of the Ndc80 subunit and negative charges in tubulin C-terminal tails and is regulated by the Aurora B kinase. We discuss our results with reference to current models of kinetochore-microtubule attachment and centromere organization.


    Organizational Affiliation

    Department of Experimental Oncology, European Institute of Oncology, Via Adamello 16, I 20139 Milan, Italy.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
KINETOCHORE PROTEIN HEC1, KINETOCHORE PROTEIN SPC25
A, B
315Homo sapiensGene Names: SPC25 (SPBC25), NDC80 (HEC, HEC1, KNTC2)
Find proteins for Q9HBM1 (Homo sapiens)
Go to Gene View: SPC25
Go to UniProtKB:  Q9HBM1
Find proteins for O14777 (Homo sapiens)
Go to Gene View: NDC80
Go to UniProtKB:  O14777
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
KINETOCHORE PROTEIN NUF2, KINETOCHORE PROTEIN SPC24
C, D
250Homo sapiensMutations: E77G
Gene Names: SPC24 (SPBC24), NUF2 (CDCA1, NUF2R)
Find proteins for Q8NBT2 (Homo sapiens)
Go to Gene View: SPC24
Go to UniProtKB:  Q8NBT2
Find proteins for Q9BZD4 (Homo sapiens)
Go to Gene View: NUF2
Go to UniProtKB:  Q9BZD4
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A, B
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
IPH
Query on IPH

Download SDF File 
Download CCD File 
C, D
PHENOL
C6 H6 O
ISWSIDIOOBJBQZ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.88 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.232 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 157.653α = 90.00
b = 248.965β = 90.00
c = 58.250γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
SHARPphasing
piratephasing
SHELXDphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-05-13
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Refinement description, Version format compliance
  • Version 1.2: 2017-06-21
    Type: Refinement description