6N51

Metabotropic Glutamate Receptor 5 bound to L-quisqualate and Nb43


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Structural insights into the activation of metabotropic glutamate receptors.

Koehl, A.Hu, H.Feng, D.Sun, B.Zhang, Y.Robertson, M.J.Chu, M.Kobilka, T.S.Laermans, T.Steyaert, J.Tarrasch, J.Dutta, S.Fonseca, R.Weis, W.I.Mathiesen, J.M.Skiniotis, G.Kobilka, B.K.

(2019) Nature 566: 79-84

  • DOI: 10.1038/s41586-019-0881-4
  • Primary Citation of Related Structures:  
    6N4Y, 6N4X, 6N50, 6N52, 6N51

  • PubMed Abstract: 
  • Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich domains to their 7-transmembrane domains. Spectroscopic studies show that signalling is a dynamic process, in which large-scale conformational changes underlie the transmission of signals from the extracellular Venus flytraps to the G protein-coupling domains-the 7-transmembrane domains-in the membrane ...

    Metabotropic glutamate receptors are family C G-protein-coupled receptors. They form obligate dimers and possess extracellular ligand-binding Venus flytrap domains, which are linked by cysteine-rich domains to their 7-transmembrane domains. Spectroscopic studies show that signalling is a dynamic process, in which large-scale conformational changes underlie the transmission of signals from the extracellular Venus flytraps to the G protein-coupling domains-the 7-transmembrane domains-in the membrane. Here, using a combination of X-ray crystallography, cryo-electron microscopy and signalling studies, we present a structural framework for the activation mechanism of metabotropic glutamate receptor subtype 5. Our results show that agonist binding at the Venus flytraps leads to a compaction of the intersubunit dimer interface, thereby bringing the cysteine-rich domains into close proximity. Interactions between the cysteine-rich domains and the second extracellular loops of the receptor enable the rigid-body repositioning of the 7-transmembrane domains, which come into contact with each other to initiate signalling.


    Organizational Affiliation

    ConfometRx, Santa Clara, CA, USA. kobilka@stanford.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Metabotropic glutamate receptor 5D [auth A], A [auth B]804Homo sapiensMutation(s): 0 
Gene Names: GRM5GPRC1EMGLUR5
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class C
Protein: 
Metabotropic Glutamate Receptor 5 (mGlu5) apo form
Find proteins for P41594 (Homo sapiens)
Explore P41594 
Go to UniProtKB:  P41594
NIH Common Fund Data Resources
PHAROS:  P41594
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Nanobody 43B [auth C], C [auth D]123Lama glamaMutation(s): 0 
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download Ideal Coordinates CCD File 
E [auth B], F [auth B], H [auth A], I [auth A]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
QUS
Query on QUS

Download Ideal Coordinates CCD File 
G [auth B], J [auth A](S)-2-AMINO-3-(3,5-DIOXO-[1,2,4]OXADIAZOLIDIN-2-YL)-PROPIONIC ACID
C5 H7 N3 O5
ASNFTDCKZKHJSW-REOHCLBHSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.00 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United StatesNS092695
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS)United StatesNS028471

Revision History  (Full details and data files)

  • Version 1.0: 2019-01-23
    Type: Initial release
  • Version 1.1: 2019-02-06
    Changes: Data collection, Database references
  • Version 1.2: 2019-02-20
    Changes: Data collection, Database references
  • Version 1.3: 2019-12-18
    Changes: Author supporting evidence
  • Version 1.4: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary