Solution structure of the Sushi 1 domain of GABAbR1a

Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.2 of the entry. See complete history


Secreted amyloid-beta precursor protein functions as a GABABR1a ligand to modulate synaptic transmission.

Rice, H.C.de Malmazet, D.Schreurs, A.Frere, S.Van Molle, I.Volkov, A.N.Creemers, E.Vertkin, I.Nys, J.Ranaivoson, F.M.Comoletti, D.Savas, J.N.Remaut, H.Balschun, D.Wierda, K.D.Slutsky, I.Farrow, K.De Strooper, B.de Wit, J.

(2019) Science 363

  • DOI: https://doi.org/10.1126/science.aao4827
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Amyloid-β precursor protein (APP) is central to the pathogenesis of Alzheimer's disease, yet its physiological function remains unresolved. Accumulating evidence suggests that APP has a synaptic function mediated by an unidentified receptor for secreted APP (sAPP). Here we show that the sAPP extension domain directly bound the sushi 1 domain specific to the γ-aminobutyric acid type B receptor subunit 1a (GABA B R1a). sAPP-GABA B R1a binding suppressed synaptic transmission and enhanced short-term facilitation in mouse hippocampal synapses via inhibition of synaptic vesicle release. A 17-amino acid peptide corresponding to the GABA B R1a binding region within APP suppressed in vivo spontaneous neuronal activity in the hippocampus of anesthetized Thy1-GCaMP6s mice. Our findings identify GABA B R1a as a synaptic receptor for sAPP and reveal a physiological role for sAPP in regulating GABA B R1a function to modulate synaptic transmission.

  • Organizational Affiliation

    VIB Center for Brain & Disease Research, Leuven, Belgium.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Gamma-aminobutyric acid type B receptor subunit 175Homo sapiensMutation(s): 0 
Gene Names: GABBR1GPRC3A
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UBS5 (Homo sapiens)
Explore Q9UBS5 
Go to UniProtKB:  Q9UBS5
GTEx:  ENSG00000204681 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UBS5
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Research Foundation - FlandersBelgiumOdyssey
European Research CouncilBelgium311083

Revision History  (Full details and data files)

  • Version 1.0: 2019-01-23
    Type: Initial release
  • Version 1.1: 2019-05-08
    Changes: Data collection
  • Version 1.2: 2023-06-14
    Changes: Data collection, Database references, Other