3VZA

Crystal structure of the chicken Spc24-Spc25 globular domain in complex with CENP-T peptide

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.898 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history. 

Literature

CENP-T provides a structural platform for outer kinetochore assembly

Nishino, T., Rago, F., Hori, T., Tomii, K., Cheeseman, I.M., Fukagawa, T.

(2013) Embo J. 32: 424-436

  • DOI: 10.1038/emboj.2012.348
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • The kinetochore forms a dynamic interface with microtubules from the mitotic spindle during mitosis. The Ndc80 complex acts as the key microtubule-binding complex at kinetochores. However, it is unclear how the Ndc80 complex associates with the inner ...

    The kinetochore forms a dynamic interface with microtubules from the mitotic spindle during mitosis. The Ndc80 complex acts as the key microtubule-binding complex at kinetochores. However, it is unclear how the Ndc80 complex associates with the inner kinetochore proteins that assemble upon centromeric chromatin. Here, based on a high-resolution structural analysis, we demonstrate that the N-terminal region of vertebrate CENP-T interacts with the 'RWD' domain in the Spc24/25 portion of the Ndc80 complex. Phosphorylation of CENP-T strengthens a cryptic hydrophobic interaction between CENP-T and Spc25 resulting in a phospho-regulated interaction that occurs without direct recognition of the phosphorylated residue. The Ndc80 complex interacts with both CENP-T and the Mis12 complex, but we find that these interactions are mutually exclusive, supporting a model in which two distinct pathways target the Ndc80 complex to kinetochores. Our results provide a model for how the multiple protein complexes at kinetochores associate in a phospho-regulated manner.

    Organizational Affiliation: 

    Department of Molecular Genetics, National Institute of Genetics and The Graduate University for Advanced Studies SOKENDAI, Shizuoka 411-8540, Japan.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Uncharacterized protein
B, A
105Gallus gallusMutation(s): 0 
Gene Names: SPC25
Find proteins for E1C4Y2 (Gallus gallus)
Go to Gene View: SPC25
Go to UniProtKB:  E1C4Y2
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Spc24 protein
D, C
73Gallus gallusMutation(s): 0 
Find proteins for R4GRT4 (Gallus gallus)
Go to UniProtKB:  R4GRT4
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Centromere protein T
E, F
39Gallus gallusMutation(s): 2 
Gene Names: CENPT
Find proteins for F1NPG5 (Gallus gallus)
Go to Gene View: CENPT
Go to UniProtKB:  F1NPG5
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.898 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.167 
  • Space Group: P 31
Unit Cell:
Length (Å)Angle (°)
a = 61.321α = 90.00
b = 61.321β = 90.00
c = 111.275γ = 120.00
Software Package:
Software NamePurpose
PHENIXphasing
HKL-2000data reduction
PHENIXrefinement
PHENIXmodel building
HKL-2000data collection
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-03
    Type: Initial release