4V2A image
Deposition Date 2014-10-08
Release Date 2014-11-05
Last Version Date 2024-11-06
Entry Detail
PDB ID:
4V2A
Keywords:
Title:
human Unc5A ectodomain
Biological Source:
Source Organism:
HOMO SAPIENS (Taxon ID: 9606)
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.40 Å
R-Value Free:
0.34
R-Value Work:
0.32
R-Value Observed:
0.32
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:NETRIN RECEPTOR UNC5A
Gene (Uniprot):UNC5A
Chain IDs:A
Chain Length:303
Number of Molecules:1
Biological Source:HOMO SAPIENS
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
ASN A ASN GLYCOSYLATION SITE
Ligand Molecules
Primary Citation
Flrt Structure: Balancing Repulsion and Cell Adhesion in Cortical and Vascular Development
Neuron 84 370 ? (2014)
PMID: 25374360 DOI: 10.1016/J.NEURON.2014.10.008

Abstact

FLRTs are broadly expressed proteins with the unique property of acting as homophilic cell adhesion molecules and as heterophilic repulsive ligands of Unc5/Netrin receptors. How these functions direct cell behavior and the molecular mechanisms involved remain largely unclear. Here we use X-ray crystallography to reveal the distinct structural bases for FLRT-mediated cell adhesion and repulsion in neurons. We apply this knowledge to elucidate FLRT functions during cortical development. We show that FLRTs regulate both the radial migration of pyramidal neurons, as well as their tangential spread. Mechanistically, radial migration is controlled by repulsive FLRT2-Unc5D interactions, while spatial organization in the tangential axis involves adhesive FLRT-FLRT interactions. Further, we show that the fundamental mechanisms of FLRT adhesion and repulsion are conserved between neurons and vascular endothelial cells. Our results reveal FLRTs as powerful guidance factors with structurally encoded repulsive and adhesive surfaces.

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Primary Citation of related structures