5CMN

FLRT3 LRR domain in complex with LPHN3 Olfactomedin domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.605 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis of Latrophilin-FLRT-UNC5 Interaction in Cell Adhesion.

Lu, Y.C.Nazarko, O.V.Sando, R.Salzman, G.S.Sudhof, T.C.Arac, D.

(2015) Structure 23: 1678-1691

  • DOI: 10.1016/j.str.2015.06.024
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Fibronectin leucine-rich repeat transmembrane proteins (FLRTs) are cell-adhesion molecules with emerging functions in cortical development and synapse formation. Their extracellular regions interact with latrophilins (LPHNs) to mediate synapse develo ...

    Fibronectin leucine-rich repeat transmembrane proteins (FLRTs) are cell-adhesion molecules with emerging functions in cortical development and synapse formation. Their extracellular regions interact with latrophilins (LPHNs) to mediate synapse development, and with Uncoordinated-5 (UNC5)/netrin receptors to control the migration of neurons in the developing cortex. Here, we present the crystal structures of FLRT3 in isolation and in complex with LPHN3. The LPHN3/FLRT3 structure reveals that LPHN3 binds to FLRT3 at a site distinct from UNC5. Structure-based mutations specifically disrupt LPHN3/FLRT3 binding, but do not disturb their interactions with other proteins or their cell-membrane localization. Thus, they can be used as molecular tools to dissect the functions of FLRTs and LPHNs in vivo. Our results suggest that UNC5 and LPHN3 can simultaneously bind to FLRT3, forming a trimeric complex, and that FLRT3 may form transsynaptic complexes with both LPHN3 and UNC5. These findings provide molecular insights for understanding the role of cell-adhesion proteins in synapse function.


    Organizational Affiliation

    Department of Biochemistry and Molecular Biology, The University of Chicago, 929 East 57(th) Street, GCIS W219, Chicago, IL 60637, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Leucine-rich repeat transmembrane protein FLRT3
A, B, C, D
333Homo sapiensMutation(s): 0 
Gene Names: FLRT3 (KIAA1469)
Find proteins for Q9NZU0 (Homo sapiens)
Go to Gene View: FLRT3
Go to UniProtKB:  Q9NZU0
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Latrophilin-3
E, F, G, H
261Homo sapiensMutation(s): 0 
Gene Names: ADGRL3 (KIAA0768, LEC3, LPHN3)
Find proteins for Q9HAR2 (Homo sapiens)
Go to Gene View: ADGRL3
Go to UniProtKB:  Q9HAR2
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
E, F, G, H
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A, B, C, D
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.605 Å
  • R-Value Free: 0.262 
  • R-Value Work: 0.195 
  • Space Group: P 43
Unit Cell:
Length (Å)Angle (°)
a = 102.268α = 90.00
b = 102.268β = 90.00
c = 419.230γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
Cootmodel building
PHENIXphasing
PHENIXrefinement
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-08-12
    Type: Initial release
  • Version 1.1: 2015-09-16
    Type: Database references