6YIE

Structure of a Borealin-INCENP-Survivin complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.49 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.269 
  • R-Value Observed: 0.271 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular basis of MKLP2-dependent Aurora B transport from chromatin to the anaphase central spindle.

Serena, M.Bastos, R.N.Elliott, P.R.Barr, F.A.

(2020) J Cell Biol 219

  • DOI: https://doi.org/10.1083/jcb.201910059
  • Primary Citation of Related Structures:  
    6YIE, 6YIF, 6YIH, 6YIP

  • PubMed Abstract: 

    The Aurora B chromosomal passenger complex (CPC) is a conserved regulator of mitosis. Its functions require localization first to the chromosome arms and then centromeres in mitosis and subsequently the central spindle in anaphase. Here, we analyze the requirements for core CPC subunits, survivin and INCENP, and the mitotic kinesin-like protein 2 (MKLP2) in targeting to these distinct localizations. Centromere recruitment of the CPC requires interaction of survivin with histone H3 phosphorylated at threonine 3, and we provide a complete structure of this assembly. Furthermore, we show that the INCENP RRKKRR-motif is required for both centromeric localization of the CPC in metaphase and MKLP2-dependent transport in anaphase. MKLP2 and DNA bind competitively to this motif, and INCENP T59 phosphorylation acts as a switch preventing MKLP2 binding in metaphase. In anaphase, CPC binding promotes the microtubule-dependent ATPase activity of MKLP2. These results explain how centromere targeting of the CPC in mitosis is coupled to its movement to the central spindle in anaphase.


  • Organizational Affiliation

    Department of Biochemistry, University of Oxford, Oxford, UK.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Baculoviral IAP repeat-containing protein 5
A, D
144Homo sapiensMutation(s): 0 
Gene Names: BIRC5API4IAP4
UniProt & NIH Common Fund Data Resources
Find proteins for O15392 (Homo sapiens)
Explore O15392 
Go to UniProtKB:  O15392
PHAROS:  O15392
GTEx:  ENSG00000089685 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO15392
Sequence Annotations
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Borealin
B, E
100Homo sapiensMutation(s): 0 
Gene Names: CDCA8PESCRG3
UniProt & NIH Common Fund Data Resources
Find proteins for Q53HL2 (Homo sapiens)
Explore Q53HL2 
Go to UniProtKB:  Q53HL2
PHAROS:  Q53HL2
GTEx:  ENSG00000134690 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ53HL2
Sequence Annotations
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Inner centromere protein
C, F
60Homo sapiensMutation(s): 0 
Gene Names: INCENP
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NQS7 (Homo sapiens)
Explore Q9NQS7 
Go to UniProtKB:  Q9NQS7
PHAROS:  Q9NQS7
GTEx:  ENSG00000149503 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NQS7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.49 Å
  • R-Value Free: 0.324 
  • R-Value Work: 0.269 
  • R-Value Observed: 0.271 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 59.536α = 90
b = 78.824β = 90
c = 125.173γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
Aimlessdata reduction
Aimlessdata scaling
PHASERphasing
XDSdata processing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Cancer Research UKUnited KingdomC20079/A15940

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-13
    Type: Initial release
  • Version 1.1: 2024-01-24
    Changes: Data collection, Database references, Refinement description