Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 33782.22 
• Atom Count: 1976 
• Residue Count: 303 
• Unique protein chains: 1

4V2A

human Unc5A ectodomain

• DOI: 10.2210/pdb4V2A/pdb

• Classification: APOPTOSIS
• Organism(s): Homo sapiens
• Expression System: Homo sapiens


• Deposited: 2014-10-08 Released: 2014-11-05 
• Deposition Author(s): Seiradake, E., del Toro, D., Nagel, D., Cop, F., Haertl, R., Ruff, T., Seyit-Bremer, G., Harlos, K., Border, E.C., Acker-Palmer, A., Jones, E.Y., Klein, R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.4 Å
• R-Value Free: 0.344 
• R-Value Work: 0.327 

Literature

Flrt Structure: Balancing Repulsion and Cell Adhesion in Cortical and Vascular Development

Seiradake, E., Del Toro, D., Nagel, D., Cop, F., Haertl, R., Ruff, T., Seyit-Bremer, G., Harlos, K., Border, E.C., Acker-Palmer, A., Jones, E.Y., Klein, R.

(2014) Neuron 84: 370

• PubMed: 25374360 
• DOI: 10.1016/j.neuron.2014.10.008
• Primary Citation of Related Structures:  
  4V2E, 4V2C, 4V2D, 4V2B


• PubMed Abstract: 
  

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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Organizational Affiliation: 

Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, OX3 7BN Oxford, UK.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
NETRIN RECEPTOR UNC5A	A	303	Homo sapiens	Mutation(s): 0  Gene Names: UNC5A (KIAA1976, UNC5H1)
Find proteins for Q6ZN44 (Homo sapiens) Go to Gene View: UNC5A Go to UniProtKB:  Q6ZN44

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
NAG	A	N-ACETYL-D-GLUCOSAMINE C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.4 Å
• R-Value Free: 0.344 
• R-Value Work: 0.327 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 25.830	α = 90.00
b = 87.770	β = 90.00
c = 133.820	γ = 90.00

Software Package:

Software Name	Purpose
xia2	data reduction
xia2	data scaling
BUSTER	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-10-08 
• Released Date: 2014-11-05 
• Deposition Author(s): Seiradake, E., del Toro, D., Nagel, D., Cop, F., Haertl, R., Ruff, T., Seyit-Bremer, G., Harlos, K., Border, E.C., Acker-Palmer, A., Jones, E.Y., Klein, R.

Revision History 

• Version 1.0: 2014-11-05
  Type: Initial release
• Version 1.1: 2015-07-22
  Type: Database references