4BXR

Structure of the wild-type TCP10 domain of Danio rerio CPAP in complex with a peptide of Danio rerio STIL


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.236 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal structures of the CPAP/STIL complex reveal its role in centriole assembly and human microcephaly.

Cottee, M.A.Muschalik, N.Wong, Y.L.Johnson, C.M.Johnson, S.Andreeva, A.Oegema, K.Lea, S.M.Raff, J.W.van Breugel, M.

(2013) Elife 2: e01071-e01071

  • DOI: https://doi.org/10.7554/eLife.01071
  • Primary Citation of Related Structures:  
    4BXP, 4BXQ, 4BXR, 4BY2

  • PubMed Abstract: 

    Centrioles organise centrosomes and template cilia and flagella. Several centriole and centrosome proteins have been linked to microcephaly (MCPH), a neuro-developmental disease associated with small brain size. CPAP (MCPH6) and STIL (MCPH7) are required for centriole assembly, but it is unclear how mutations in them lead to microcephaly. We show that the TCP domain of CPAP constitutes a novel proline recognition domain that forms a 1:1 complex with a short, highly conserved target motif in STIL. Crystal structures of this complex reveal an unusual, all-β structure adopted by the TCP domain and explain how a microcephaly mutation in CPAP compromises complex formation. Through point mutations, we demonstrate that complex formation is essential for centriole duplication in vivo. Our studies provide the first structural insight into how the malfunction of centriole proteins results in human disease and also reveal that the CPAP-STIL interaction constitutes a conserved key step in centriole biogenesis. DOI:http://dx.doi.org/10.7554/eLife.01071.001.


  • Organizational Affiliation

    Sir William Dunn School of Pathology , University of Oxford , Oxford , United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CPAP
A, B
192Danio rerioMutation(s): 0 
UniProt
Find proteins for E7FCY1 (Danio rerio)
Explore E7FCY1 
Go to UniProtKB:  E7FCY1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupE7FCY1
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
SCL-INTERRUPTING LOCUS PROTEIN HOMOLOG
C, D
28Danio rerioMutation(s): 0 
UniProt
Find proteins for Q8JGS1 (Danio rerio)
Explore Q8JGS1 
Go to UniProtKB:  Q8JGS1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8JGS1
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.234 
  • R-Value Observed: 0.236 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.25α = 90
b = 67.47β = 113.92
c = 61.65γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-09-25
    Type: Initial release
  • Version 1.1: 2013-10-02
    Changes: Database references
  • Version 1.2: 2018-01-17
    Changes: Database references
  • Version 1.3: 2023-12-20
    Changes: Data collection, Database references, Other, Refinement description