5OJ6

Crystal structure of the chicken MDGA1 ectodomain in complex with the human neuroligin 1 (NL1(-A-B)) cholinesterase domain.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.227 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Mechanism for Modulation of Synaptic Neuroligin-Neurexin Signaling by MDGA Proteins.

Elegheert, J.Cvetkovska, V.Clayton, A.J.Heroven, C.Vennekens, K.M.Smukowski, S.N.Regan, M.C.Jia, W.Smith, A.C.Furukawa, H.Savas, J.N.de Wit, J.Begbie, J.Craig, A.M.Aricescu, A.R.

(2017) Neuron 95: 896-913.e10

  • DOI: 10.1016/j.neuron.2017.07.040
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Neuroligin-neurexin (NL-NRX) complexes are fundamental synaptic organizers in the central nervous system. An accurate spatial and temporal control of NL-NRX signaling is crucial to balance excitatory and inhibitory neurotransmission, and perturbation ...

    Neuroligin-neurexin (NL-NRX) complexes are fundamental synaptic organizers in the central nervous system. An accurate spatial and temporal control of NL-NRX signaling is crucial to balance excitatory and inhibitory neurotransmission, and perturbations are linked with neurodevelopmental and psychiatric disorders. MDGA proteins bind NLs and control their function and interaction with NRXs via unknown mechanisms. Here, we report crystal structures of MDGA1, the NL1-MDGA1 complex, and a spliced NL1 isoform. Two large, multi-domain MDGA molecules fold into rigid triangular structures, cradling a dimeric NL to prevent NRX binding. Structural analyses guided the discovery of a broad, splicing-modulated interaction network between MDGA and NL family members and helped rationalize the impact of autism-linked mutations. We demonstrate that expression levels largely determine whether MDGAs act selectively or suppress the synapse organizing function of multiple NLs. These results illustrate a potentially brain-wide regulatory mechanism for NL-NRX signaling modulation.


    Organizational Affiliation

    Division of Structural Biology, Wellcome Trust Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK. Electronic address: jelegheert@strubi.ox.ac.uk.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Neuroligin-1
A
575Homo sapiensMutation(s): 0 
Gene Names: NLGN1 (KIAA1070)
Find proteins for Q8N2Q7 (Homo sapiens)
Go to Gene View: NLGN1
Go to UniProtKB:  Q8N2Q7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
MAM domain-containing glycosylphosphatidylinositol anchor protein 1
B
910Gallus gallusMutation(s): 1 
Gene Names: MDGA1
Find proteins for Q0WYX8 (Gallus gallus)
Go to Gene View: MDGA1
Go to UniProtKB:  Q0WYX8
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BMA
Query on BMA

Download SDF File 
Download CCD File 
B
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.227 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 109.420α = 90.00
b = 184.140β = 90.00
c = 96.470γ = 90.00
Software Package:
Software NamePurpose
xia2data reduction
PHASERphasing
Aimlessdata scaling
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Medical Research Council (United Kingdom)United KingdomG0700232
Medical Research Council (United Kingdom)United KingdomL009609
Medical Research Council (United Kingdom)United KingdomMC_UP_1201/15
CIHRCanadaFDN- 143206
CIHRCanadaNDD-144222
National Institutes of HealthUnited StatesR00 DC013805
European Molecular Biology OrganizationUnited KingdomALTF 1116-2012
Marie CurieUnited KingdomFP7-328531
Cancer Research UKUnited KingdomC375/A10976
National Institutes of HealthUnited StatesMH085926
National Institutes of HealthUnited StatesGM105730
National Institutes of HealthUnited StatesF32NS093753
Wellcome TrustUnited Kingdom090532/Z/09/Z

Revision History 

  • Version 1.0: 2017-08-23
    Type: Initial release
  • Version 1.1: 2017-08-30
    Type: Database references
  • Version 1.2: 2017-09-20
    Type: Database references