3B0D

Crystal structure of the chicken CENP-T histone fold/CENP-W complex, crystal form II

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.208 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

CENP-T-W-S-X Forms a Unique Centromeric Chromatin Structure with a Histone-like Fold.

Nishino, T., Takeuchi, K., Gascoigne, K.E., Suzuki, A., Hori, T., Oyama, T., Morikawa, K., Cheeseman, I.M., Fukagawa, T.

(2012) Cell 148: 487-501

  • DOI: 10.1016/j.cell.2011.11.061
  • Primary Citation of Related Structures:  
    3B0B, 3B0C, 3B0D, 3VH5, 3VH6

  • PubMed Abstract: 

    • The multiprotein kinetochore complex must assemble at a specific site on each chromosome to achieve accurate chromosome segregation. Defining the nature of the DNA-protein interactions that specify the position of the kinetochore and provide a scaffold for kinetochore formation remain key goals ...

    The multiprotein kinetochore complex must assemble at a specific site on each chromosome to achieve accurate chromosome segregation. Defining the nature of the DNA-protein interactions that specify the position of the kinetochore and provide a scaffold for kinetochore formation remain key goals. Here, we demonstrate that the centromeric histone-fold-containing CENP-T-W and CENP-S-X complexes coassemble to form a stable CENP-T-W-S-X heterotetramer. High-resolution structural analysis of the individual complexes and the heterotetramer reveals similarity to other histone fold-containing complexes including canonical histones within a nucleosome. The CENP-T-W-S-X heterotetramer binds to and supercoils DNA. Mutants designed to compromise heterotetramerization or the DNA-protein contacts around the heterotetramer strongly reduce the DNA binding and supercoiling activities in vitro and compromise kinetochore assembly in vivo. These data suggest that the CENP-T-W-S-X complex forms a unique nucleosome-like structure to generate contacts with DNA, extending the "histone code" beyond canonical nucleosome proteins.

    Organizational Affiliation: 

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



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Centromere protein TC [auth B],
A [auth T]		111Gallus gallusMutation(s): 0 
Gene Names: CENPT
UniProt
Find proteins for F1NPG5 (Gallus gallus)
Explore F1NPG5 
Go to UniProtKB:  F1NPG5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupF1NPG5
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Centromere protein WD [auth C],
B [auth W]		76Gallus gallusMutation(s): 0 
Gene Names: CENPW
UniProt
Find proteins for P0DJH6 (Gallus gallus)
Explore P0DJH6 
Go to UniProtKB:  P0DJH6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DJH6
Protein Feature View
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  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.261 
  • R-Value Work: 0.203 
  • R-Value Observed: 0.208 
  • Space Group: P 31 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.985α = 90
b = 54.985β = 90
c = 235.912γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
PHENIXrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-03-07
    Type: Initial release
  • Version 1.1: 2017-10-11
    Changes: Refinement description