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 
  • R-Value Observed: 0.206 

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This is version 1.3 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: https://doi.org/10.1016/j.str.2015.01.013
  • Primary Citation of Related Structures:  
    5AFB

  • 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 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:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
LATROPHILIN-3384Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9HAR2 (Homo sapiens)
Explore Q9HAR2 
Go to UniProtKB:  Q9HAR2
PHAROS:  Q9HAR2
GTEx:  ENSG00000150471 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9HAR2
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.16 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.204 
  • R-Value Observed: 0.206 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 78.43α = 90
b = 96.65β = 90
c = 101.64γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
xia2data reduction
xia2data scaling
autoSHARPphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-03-18
    Type: Initial release
  • Version 1.1: 2015-04-22
    Changes: Database references
  • Version 1.2: 2016-03-09
    Changes: Database references, Other, Structure summary
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary