7M6N

Full length alpha1 Glycine receptor in presence of 0.1mM Glycine


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.61 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structural basis for cannabinoid-induced potentiation of alpha1-glycine receptors in lipid nanodiscs.

Kumar, A.Kindig, K.Rao, S.Zaki, A.M.Basak, S.Sansom, M.S.P.Biggin, P.C.Chakrapani, S.

(2022) Nat Commun 13: 4862-4862

  • DOI: https://doi.org/10.1038/s41467-022-32594-5
  • Primary Citation of Related Structures:  
    7M6M, 7M6N, 7M6O, 7M6P, 7M6Q, 7M6R, 7M6S

  • PubMed Abstract: 

    Nociception and motor coordination are critically governed by glycine receptor (GlyR) function at inhibitory synapses. Consequentially, GlyRs are attractive targets in the management of chronic pain and in the treatment of several neurological disorders. High-resolution mechanistic details of GlyR function and its modulation are just emerging. While it has been known that cannabinoids such as Δ 9 -tetrahydrocannabinol (THC), the principal psychoactive constituent in marijuana, potentiate GlyR in the therapeutically relevant concentration range, the molecular mechanism underlying this effect is still not understood. Here, we present Cryo-EM structures of full-length GlyR reconstituted into lipid nanodisc in complex with THC under varying concentrations of glycine. The GlyR-THC complexes are captured in multiple conformational states that reveal the basis for THC-mediated potentiation, manifested as different extents of opening at the level of the channel pore. Taken together, these structural findings, combined with molecular dynamics simulations and functional analysis, provide insights into the potential THC binding site and the allosteric coupling to the channel pore.


  • Organizational Affiliation

    Department of Physiology and Biophysics, School of Medicine, Case Western Reserve University, Cleveland, OH, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glycine receptor subunit alphaZ1A,
B [auth D],
C [auth E],
D [auth B],
E [auth C]
444Danio rerioMutation(s): 0 
Gene Names: glra1
Membrane Entity: Yes 
UniProt
Find proteins for O93430 (Danio rerio)
Explore O93430 
Go to UniProtKB:  O93430
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO93430
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
G [auth A],
I [auth D],
K [auth E],
M [auth B],
O [auth C]
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
GLY (Subject of Investigation/LOI)
Query on GLY

Download Ideal Coordinates CCD File 
F [auth A],
H [auth D],
J [auth E],
L [auth B],
N [auth C]
GLYCINE
C2 H5 N O2
DHMQDGOQFOQNFH-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.61 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION3.1

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR35GM134896
American Heart AssociationUnited States20POST35210394

Revision History  (Full details and data files)

  • Version 1.0: 2022-08-03
    Type: Initial release
  • Version 1.1: 2022-08-10
    Changes: Structure summary
  • Version 1.2: 2022-09-07
    Changes: Database references