6HXV

Crystal structure of the head and coiled-coil domains of zebrafish CCDC61 (F129E/D130A)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

CCDC61/VFL3 Is a Paralog of SAS6 and Promotes Ciliary Functions.

Ochi, T.Quarantotti, V.Lin, H.Jullien, J.Rosa E Silva, I.Boselli, F.Barnabas, D.D.Johnson, C.M.McLaughlin, S.H.Freund, S.M.V.Blackford, A.N.Kimata, Y.Goldstein, R.E.Jackson, S.P.Blundell, T.L.Dutcher, S.K.Gergely, F.van Breugel, M.

(2020) Structure 

  • DOI: 10.1016/j.str.2020.04.010
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Centrioles are cylindrical assemblies whose peripheral microtubule array displays a 9-fold rotational symmetry that is established by the scaffolding protein SAS6. Centriole symmetry can be broken by centriole-associated structures, such as the stria ...

    Centrioles are cylindrical assemblies whose peripheral microtubule array displays a 9-fold rotational symmetry that is established by the scaffolding protein SAS6. Centriole symmetry can be broken by centriole-associated structures, such as the striated fibers in Chlamydomonas that are important for ciliary function. The conserved protein CCDC61/VFL3 is involved in this process, but its exact role is unclear. Here, we show that CCDC61 is a paralog of SAS6. Crystal structures of CCDC61 demonstrate that it contains two homodimerization interfaces that are similar to those found in SAS6, but result in the formation of linear filaments rather than rings. Furthermore, we show that CCDC61 binds microtubules and that residues involved in CCDC61 microtubule binding are important for ciliary function in Chlamydomonas. Together, our findings suggest that CCDC61 and SAS6 functionally diverged from a common ancestor while retaining the ability to scaffold the assembly of basal body-associated structures or centrioles, respectively.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Francis Crick Avenue, Cambridge CB2 0QH, UK. Electronic address: m.vanbreugel@qmul.ac.uk.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Coiled-coil domain-containing protein 61
A, B
171Danio rerioMutation(s): 2 
Gene Names: ccdc61zgc:153153
Find proteins for Q08CF3 (Danio rerio)
Go to UniProtKB:  Q08CF3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.97 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.173 
  • R-Value Observed: 0.176 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.36α = 90
b = 76.31β = 90
c = 83.24γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
MOSFLMdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United Kingdom--

Revision History 

  • Version 1.0: 2020-04-29
    Type: Initial release
  • Version 1.1: 2020-05-06
    Changes: Database references
  • Version 1.2: 2020-05-20
    Changes: Database references