5AFB

Crystal structure of the Latrophilin3 Lectin and Olfactomedin Domains


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis of Latrophilin-Flrt Interaction.

Jackson, V.A.Del Toro, D.Carrasquero, M.Roversi, P.Harlos, K.Klein, R.Seiradake, E.

(2015) Structure 23: 774

  • DOI: 10.1016/j.str.2015.01.013

  • PubMed Abstract: 
  • Latrophilins, receptors for spider venom α-latrotoxin, are adhesion type G-protein-coupled receptors with emerging functions in synapse development. The N-terminal region binds the endogenous cell adhesion molecule FLRT, a major regulator of cortical ...

    Latrophilins, receptors for spider venom α-latrotoxin, are adhesion type G-protein-coupled receptors with emerging functions in synapse development. The N-terminal region binds the endogenous cell adhesion molecule FLRT, a major regulator of cortical and synapse development. We present crystallographic data for the mouse Latrophilin3 lectin and olfactomedin-like (Olf) domains, thereby revealing the Olf β-propeller fold and conserved calcium-binding site. We locate the FLRT-Latrophilin binding surfaces by a combination of sequence conservation analysis, point mutagenesis, and surface plasmon resonance experiments. In stripe assays, we show that wild-type Latrophilin3 and its high-affinity interactor FLRT2, but not the binding-impaired mutants we generated, promote HeLa cell adhesion. In contrast, cortical neurons expressing endogenous FLRTs are repelled by wild-type Latrophilin3 and not by the binding-impaired mutant. Taken together, we present molecular level insights into Latrophilin structure, its FLRT-binding mechanism, and a role for Latrophilin and FLRT that goes beyond a simply adhesive interaction.


    Organizational Affiliation

    Department of Biochemistry, Oxford University, South Parks Road, Oxford OX1 3QU, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
LATROPHILIN-3
A
384Homo 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 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

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Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

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Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.204 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 78.430α = 90.00
b = 96.650β = 90.00
c = 101.640γ = 90.00
Software Package:
Software NamePurpose
xia2data reduction
autoSHARPphasing
xia2data scaling
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-03-18
    Type: Initial release
  • Version 1.1: 2015-04-22
    Type: Database references
  • Version 1.2: 2016-03-09
    Type: Database references, Other, Structure summary