Crystal Structure of Mis18 'Yippee-like' Domain

Experimental Data Snapshot

  • Resolution: 2.64 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.222 

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Centromere localization and function of Mis18 requires Yippee-like domain-mediated oligomerization.

Subramanian, L.Medina-Pritchard, B.Barton, R.Spiller, F.Kulasegaran-Shylini, R.Radaviciute, G.Allshire, R.C.Arockia Jeyaprakash, A.

(2016) EMBO Rep 17: 496-507

  • DOI: https://doi.org/10.15252/embr.201541520
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Mis18 is a key regulator responsible for the centromere localization of the CENP-A chaperone Scm3 in Schizosaccharomyces pombe and HJURP in humans, which establishes CENP-A chromatin that defines centromeres. The molecular and structural determinants of Mis18 centromere targeting remain elusive. Here, by combining structural, biochemical, and yeast genetic studies, we show that the oligomerization of S. pombe Mis18, mediated via its conserved N-terminal Yippee-like domain, is crucial for its centromere localization and function. The crystal structure of the N-terminal Yippee-like domain reveals a fold containing a cradle-shaped pocket that is implicated in protein/nucleic acid binding, which we show is required for Mis18 function. While the N-terminal Yippee-like domain forms a homodimer in vitro and in vivo, full-length Mis18, including the C-terminal α-helical domain, forms a homotetramer in vitro We also show that the Yippee-like domains of human Mis18α/Mis18β interact to form a heterodimer, implying a conserved structural theme for Mis18 regulation.

  • Organizational Affiliation

    Wellcome Trust Centre for Cell Biology, Institute of Cell Biology, University of Edinburgh, Edinburgh, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Kinetochore protein mis18
A, B, C
120Schizosaccharomyces pombeMutation(s): 0 
Gene Names: mis18SPCC970.12
Find proteins for Q9P802 (Schizosaccharomyces pombe (strain 972 / ATCC 24843))
Explore Q9P802 
Go to UniProtKB:  Q9P802
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9P802
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.64 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.220 
  • R-Value Observed: 0.222 
  • Space Group: P 31 1 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 121.069α = 90
b = 121.069β = 90
c = 73.211γ = 120
Software Package:
Software NamePurpose
xia2data reduction
SCALAdata scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Wellcome TrustUnited Kingdom095822
Wellcome TrustUnited Kingdom092076
Wellcome TrustUnited Kingdom091020
European CommissionUnited Kingdom334291

Revision History  (Full details and data files)

  • Version 1.0: 2016-03-09
    Type: Initial release
  • Version 1.1: 2016-05-04
    Changes: Database references
  • Version 1.2: 2024-05-08
    Changes: Data collection, Database references, Refinement description