5MZH

Crystal structure of ODA16 from Chlamydomonas reinhardtii


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.398 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.158 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural basis of outer dynein arm intraflagellar transport by the transport adaptor protein ODA16 and the intraflagellar transport protein IFT46.

Taschner, M.Mourao, A.Awasthi, M.Basquin, J.Lorentzen, E.

(2017) J. Biol. Chem. 292: 7462-7473

  • DOI: 10.1074/jbc.M117.780155

  • PubMed Abstract: 
  • Motile cilia are found on unicellular organisms such as the green alga Chlamydomonas reinhardtii, on sperm cells, and on cells that line the trachea and fallopian tubes in mammals. The motility of cilia relies on a number of large protein complexes i ...

    Motile cilia are found on unicellular organisms such as the green alga Chlamydomonas reinhardtii, on sperm cells, and on cells that line the trachea and fallopian tubes in mammals. The motility of cilia relies on a number of large protein complexes including the force-generating outer dynein arms (ODAs). The transport of ODAs into cilia has been previously shown to require the transport adaptor ODA16, as well as the intraflagellar transport (IFT) protein IFT46, but the molecular mechanism by which ODAs are recognized and transported into motile cilia is still unclear. Here, we determined the high-resolution crystal structure of C. reinhardtii ODA16 (CrODA16) and mapped the binding to IFT46 and ODAs. The CrODA16 structure revealed a small 80-residue N-terminal domain and a C-terminal 8-bladed β-propeller domain that are both required for the association with the N-terminal 147 residues of IFT46. The dissociation constant of the IFT46-ODA16 complex was 200 nm, demonstrating that CrODA16 associates with the IFT complex with an affinity comparable with that of the individual IFT subunits. Furthermore, we show, using ODAs extracted from the axonemes of C. reinhardtii, that the C-terminal β-propeller but not the N-terminal domain of CrODA16 is required for the interaction with ODAs. These data allowed us to present an architectural model for ODA16-mediated IFT of ODAs.


    Organizational Affiliation

    From the Department of Molecular Biology and Genetics, Aarhus University, DK-8000 Aarhus C, Denmark.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Dynein assembly factor with WDR repeat domains 1
A, B
452Chlamydomonas reinhardtiiGene Names: DAW1 (ODA16)
Find proteins for Q3Y8L7 (Chlamydomonas reinhardtii)
Go to Gene View: DAW1
Go to UniProtKB:  Q3Y8L7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.398 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.158 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 62.767α = 90.00
b = 62.767β = 90.00
c = 460.472γ = 120.00
Software Package:
Software NamePurpose
Aimlessdata scaling
XDSdata reduction
PHENIXrefinement
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-03-22
    Type: Initial release
  • Version 1.1: 2017-03-29
    Type: Database references
  • Version 1.2: 2017-05-17
    Type: Database references