6RSN

SOSEKI polymerising domain (SOK4 D85A mutant)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

DIX Domain Polymerization Drives Assembly of Plant Cell Polarity Complexes.

van Dop, M.Fiedler, M.Mutte, S.de Keijzer, J.Olijslager, L.Albrecht, C.Liao, C.Y.Janson, M.E.Bienz, M.Weijers, D.

(2020) Cell 180: 427

  • DOI: 10.1016/j.cell.2020.01.011
  • Primary Citation of Related Structures:  
    6RSN

  • PubMed Abstract: 
  • Cell polarity is fundamental for tissue morphogenesis in multicellular organisms. Plants and animals evolved multicellularity independently, and it is unknown whether their polarity systems are derived from a single-celled ancestor. Planar polarity in animals is conferred by Wnt signaling, an ancient signaling pathway transduced by Dishevelled, which assembles signalosomes by dynamic head-to-tail DIX domain polymerization ...

    Cell polarity is fundamental for tissue morphogenesis in multicellular organisms. Plants and animals evolved multicellularity independently, and it is unknown whether their polarity systems are derived from a single-celled ancestor. Planar polarity in animals is conferred by Wnt signaling, an ancient signaling pathway transduced by Dishevelled, which assembles signalosomes by dynamic head-to-tail DIX domain polymerization. In contrast, polarity-determining pathways in plants are elusive. We recently discovered Arabidopsis SOSEKI proteins, which exhibit polar localization throughout development. Here, we identify SOSEKI as ancient polar proteins across land plants. Concentration-dependent polymerization via a bona fide DIX domain allows these to recruit ANGUSTIFOLIA to polar sites, similar to the polymerization-dependent recruitment of signaling effectors by Dishevelled. Cross-kingdom domain swaps reveal functional equivalence of animal and plant DIX domains. We trace DIX domains to unicellular eukaryotes and thus show that DIX-dependent polymerization is an ancient mechanism conserved between kingdoms and central to polarity proteins.


    Organizational Affiliation

    Laboratory of Biochemistry, Wageningen University, Stippeneng 4, Wageningen, the Netherlands. Electronic address: dolf.weijers@wur.nl.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
UPSTREAM OF FLC-like protein (DUF966)A95Arabidopsis thalianaMutation(s): 1 
Gene Names: At3g46110At3g46110/F12M12_80
UniProt
Find proteins for Q8GY65 (Arabidopsis thaliana)
Explore Q8GY65 
Go to UniProtKB:  Q8GY65
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download Ideal Coordinates CCD File 
B [auth A]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE
AL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.214 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.186 
  • Space Group: P 61
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.659α = 90
b = 47.659β = 90
c = 67.971γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
SHELXCDphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data

  • Deposited Date: 2019-05-21 
  • Released Date: 2020-01-29 
  • Deposition Author(s): Fiedler, M., Bienz, M.

Funding OrganizationLocationGrant Number
Medical Research Council (MRC, United Kingdom)United KingdomU105192713

Revision History  (Full details and data files)

  • Version 1.0: 2020-01-29
    Type: Initial release
  • Version 1.1: 2020-02-19
    Changes: Database references