7YYH

Structure of the human CCANdeltaT CENP-A alpha-satellite complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure of the human inner kinetochore bound to a centromeric CENP-A nucleosome.

Yatskevich, S.Muir, K.W.Bellini, D.Zhang, Z.Yang, J.Tischer, T.Predin, M.Dendooven, T.McLaughlin, S.H.Barford, D.

(2022) Science 376: 844-852

  • DOI: https://doi.org/10.1126/science.abn3810
  • Primary Citation of Related Structures:  
    7PB4, 7PB8, 7PII, 7PKN, 7R5R, 7R5S, 7R5V, 7YWX, 7YYH

  • PubMed Abstract: 

    Kinetochores assemble onto specialized centromeric CENP-A (centromere protein A) nucleosomes (CENP-A Nuc ) to mediate attachments between chromosomes and the mitotic spindle. We describe cryo-electron microscopy structures of the human inner kinetochore constitutive centromere associated network (CCAN) complex bound to CENP-A Nuc reconstituted onto α-satellite DNA. CCAN forms edge-on contacts with CENP-A Nuc , and a linker DNA segment of the α-satellite repeat emerges from the fully wrapped end of the nucleosome to thread through the central CENP-LN channel that tightly grips the DNA. The CENP-TWSX histone-fold module further augments DNA binding and partially wraps the linker DNA in a manner reminiscent of canonical nucleosomes. Our study suggests that the topological entrapment of the linker DNA by CCAN provides a robust mechanism by which kinetochores withstand both pushing and pulling forces exerted by the mitotic spindle.


  • Organizational Affiliation

    MRC Laboratory of Molecular Biology, Cambridge CB2 0QH, UK.


Macromolecules

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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H3-like centromeric protein A
A, E
140Homo sapiensMutation(s): 0 
Gene Names: CENPA
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Find proteins for P49450 (Homo sapiens)
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PHAROS:  P49450
GTEx:  ENSG00000115163 
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UniProt GroupP49450
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H4
B, F
103Homo sapiensMutation(s): 0 
Gene Names: 
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Find proteins for P62805 (Homo sapiens)
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PHAROS:  P62805
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UniProt GroupP62805
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H2A type 1-C
C, G
130Homo sapiensMutation(s): 0 
Gene Names: H2AC6H2AFLHIST1H2AC
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PHAROS:  Q93077
GTEx:  ENSG00000180573 
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UniProt GroupQ93077
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Histone H2B type 1-C/E/F/G/ID,
T [auth h]
126Homo sapiensMutation(s): 0 
Gene Names: HIST1H2BCH2BFLHIST1H2BEH2BFHHIST1H2BFH2BFGHIST1H2BGH2BFAHIST1H2BIH2BFK
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein H247Homo sapiensMutation(s): 0 
Gene Names: CENPHICEN35
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PHAROS:  Q9H3R5
GTEx:  ENSG00000153044 
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein I756Homo sapiensMutation(s): 0 
Gene Names: CENPIFSHPRH1ICEN19LRPR1
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PHAROS:  Q92674
GTEx:  ENSG00000102384 
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Entity ID: 8
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein K269Homo sapiensMutation(s): 0 
Gene Names: CENPKICEN37FKSG14
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GTEx:  ENSG00000123219 
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Entity ID: 9
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein L344Homo sapiensMutation(s): 0 
Gene Names: CENPLC1orf155ICEN33
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GTEx:  ENSG00000120334 
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Entity ID: 10
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein M180Homo sapiensMutation(s): 0 
Gene Names: CENPMC22orf18ICEN39PANE1
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GTEx:  ENSG00000100162 
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Entity ID: 11
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein N339Homo sapiensMutation(s): 0 
Gene Names: CENPNC16orf60ICEN32BM-309
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GTEx:  ENSG00000166451 
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Entity ID: 12
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein O300Homo sapiensMutation(s): 0 
Gene Names: CENPOICEN36MCM21R
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GTEx:  ENSG00000138092 
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Entity ID: 13
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein P288Homo sapiensMutation(s): 0 
Gene Names: CENPP
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PHAROS:  Q6IPU0
GTEx:  ENSG00000188312 
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UniProt GroupQ6IPU0
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Entity ID: 14
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein Q268Homo sapiensMutation(s): 0 
Gene Names: CENPQC6orf139
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PHAROS:  Q7L2Z9
GTEx:  ENSG00000031691 
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Entity ID: 15
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein R177Homo sapiensMutation(s): 0 
Gene Names: ITGB3BPCENPRNRIF3
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GTEx:  ENSG00000142856 
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Entity ID: 16
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein US [auth U]418Homo sapiensMutation(s): 0 
Gene Names: CENPUICEN24KLIP1MLF1IPPBIP1
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GTEx:  ENSG00000151725 
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UniProt GroupQ71F23
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Entity ID: 17
MoleculeChains Sequence LengthOrganismDetailsImage
Centromere protein CU [auth k],
V [auth l]
544Homo sapiensMutation(s): 0 
Gene Names: CENPCCENPC1ICEN7
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Find proteins for Q03188 (Homo sapiens)
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GTEx:  ENSG00000145241 
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Entity ID: 7
MoleculeChains LengthOrganismImage
DNA (171-MER)171Homo sapiens
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Entity ID: 18
MoleculeChains LengthOrganismImage
DNA (171-MER)W [auth i]171Homo sapiens
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 8.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Cancer Research UKUnited Kingdom--
Boehringer Ingelheim Fonds (BIF)Germany--
Medical Research Council (MRC, United Kingdom)United Kingdom--

Revision History  (Full details and data files)

  • Version 1.0: 2022-05-18
    Type: Initial release
  • Version 1.1: 2022-06-01
    Changes: Database references
  • Version 1.2: 2024-07-17
    Changes: Data collection