5VAI

Cryo-EM structure of the activated Glucagon-like peptide-1 receptor in complex with G protein


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.1 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Cryo-EM structure of the activated GLP-1 receptor in complex with a G protein.

Zhang, Y.Sun, B.Feng, D.Hu, H.Chu, M.Qu, Q.Tarrasch, J.T.Li, S.Sun Kobilka, T.Kobilka, B.K.Skiniotis, G.

(2017) Nature 546: 248-253

  • DOI: 10.1038/nature22394

  • PubMed Abstract: 
  • Glucagon-like peptide 1 (GLP-1) is a hormone with essential roles in regulating insulin secretion, carbohydrate metabolism and appetite. GLP-1 effects are mediated through binding to the GLP-1 receptor (GLP-1R), a class B G-protein-coupled receptor ( ...

    Glucagon-like peptide 1 (GLP-1) is a hormone with essential roles in regulating insulin secretion, carbohydrate metabolism and appetite. GLP-1 effects are mediated through binding to the GLP-1 receptor (GLP-1R), a class B G-protein-coupled receptor (GPCR) that signals primarily through the stimulatory G protein G s . Class B GPCRs are important therapeutic targets; however, our understanding of their mechanism of action is limited by the lack of structural information on activated and full-length receptors. Here we report the cryo-electron microscopy structure of the peptide-activated GLP-1R-G s complex at near atomic resolution. The peptide is clasped between the N-terminal domain and the transmembrane core of the receptor, and further stabilized by extracellular loops. Conformational changes in the transmembrane domain result in a sharp kink in the middle of transmembrane helix 6, which pivots its intracellular half outward to accommodate the α5-helix of the Ras-like domain of G s . These results provide a structural framework for understanding class B GPCR activation through hormone binding.


    Organizational Affiliation

    Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California 94305, USA.,Life Sciences Institute and Department of Biological Chemistry, University of Michigan Medical School, Ann Arbor, Michigan 48109, USA.,ConfometRx, 3070 Kenneth St, Santa Clara, California 95054, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Uncharacterized protein
R
461Oryctolagus cuniculusMutation(s): 0 
Gene Names: GLP1R
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for G1SGD4 (Oryctolagus cuniculus)
Go to Gene View: GLP1R
Go to UniProtKB:  G1SGD4
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Glucagon-like peptide 1
P
31Homo sapiensMutation(s): 0 
Gene Names: GCG
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P01275 (Homo sapiens)
Go to Gene View: GCG
Go to UniProtKB:  P01275
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
A
380Homo sapiensMutation(s): 0 
Gene Names: GNAS (GNAS1, GSP)
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P63092 (Homo sapiens)
Go to Gene View: GNAS
Go to UniProtKB:  P63092
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B
351Rattus norvegicusMutation(s): 0 
Gene Names: Gnb1
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P54311 (Rattus norvegicus)
Go to UniProtKB:  P54311
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G
68Bos taurusMutation(s): 0 
Gene Names: GNG2
Membrane protein
mpstruct
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
Activated glucagon-like receptor (GLP-1) in complex with a G protein
Find proteins for P63212 (Bos taurus)
Go to Gene View: GNG2
Go to UniProtKB:  P63212
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
nanobody 35
N
138N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.1 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-05-24
    Type: Initial release
  • Version 1.1: 2017-06-07
    Type: Database references
  • Version 1.2: 2017-06-21
    Type: Database references
  • Version 1.3: 2018-07-18
    Type: Data collection