7DUQ

Cryo-EM structure of the compound 2 and GLP-1-bound human GLP-1 receptor-Gs complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Molecular insights into ago-allosteric modulation of the human glucagon-like peptide-1 receptor.

Cong, Z.Chen, L.N.Ma, H.Zhou, Q.Zou, X.Ye, C.Dai, A.Liu, Q.Huang, W.Sun, X.Wang, X.Xu, P.Zhao, L.Xia, T.Zhong, W.Yang, D.Eric Xu, H.Zhang, Y.Wang, M.W.

(2021) Nat Commun 12: 3763-3763

  • DOI: 10.1038/s41467-021-24058-z
  • Primary Citation of Related Structures:  
    7DUQ, 7DUR, 7E14, 7EVM

  • PubMed Abstract: 
  • The glucagon-like peptide-1 (GLP-1) receptor is a validated drug target for metabolic disorders. Ago-allosteric modulators are capable of acting both as agonists on their own and as efficacy enhancers of orthosteric ligands. However, the molecular details of ago-allosterism remain elusive ...

    The glucagon-like peptide-1 (GLP-1) receptor is a validated drug target for metabolic disorders. Ago-allosteric modulators are capable of acting both as agonists on their own and as efficacy enhancers of orthosteric ligands. However, the molecular details of ago-allosterism remain elusive. Here, we report three cryo-electron microscopy structures of GLP-1R bound to (i) compound 2 (an ago-allosteric modulator); (ii) compound 2 and GLP-1; and (iii) compound 2 and LY3502970 (a small molecule agonist), all in complex with heterotrimeric G s . The structures reveal that compound 2 is covalently bonded to C347 at the cytoplasmic end of TM6 and triggers its outward movement in cooperation with the ECD whose N terminus penetrates into the GLP-1 binding site. This allows compound 2 to execute positive allosteric modulation through enhancement of both agonist binding and G protein coupling. Our findings offer insights into the structural basis of ago-allosterism at GLP-1R and may aid the design of better therapeutics.


    Organizational Affiliation

    School of Life Science and Technology, ShanghaiTech University, Shanghai, China. mwwang@simm.ac.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Glucagon-like peptide 1A [auth P]30Homo sapiensMutation(s): 0 
Gene Names: GCG
Membrane Entity: Yes 
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Find proteins for P01275 (Homo sapiens)
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PHAROS:  P01275
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UniProt GroupP01275
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Glucagon-like peptide 1 receptorB [auth R]440Homo sapiensMutation(s): 0 
Gene Names: GLP1R
Membrane Entity: Yes 
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PHAROS:  P43220
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UniProt GroupP43220
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms shortC [auth A]394Homo sapiensMutation(s): 8 
Gene Names: GNASGNAS1GSP
Membrane Entity: Yes 
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PHAROS:  P63092
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1D [auth B]345Rattus norvegicusMutation(s): 0 
Gene Names: Gnb1
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2E [auth G]70Bos taurusMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
Nanobody-35F [auth N]140synthetic constructMutation(s): 0 
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Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CLR
Query on CLR

Download Ideal Coordinates CCD File 
H [auth R],
I [auth R],
J [auth R],
K [auth R],
L [auth R],
H [auth R],
I [auth R],
J [auth R],
K [auth R],
L [auth R],
M [auth R],
N [auth R]
CHOLESTEROL
C27 H46 O
HVYWMOMLDIMFJA-DPAQBDIFSA-N
 Ligand Interaction
HNO (Subject of Investigation/LOI)
Query on HNO

Download Ideal Coordinates CCD File 
G [auth R]N-tert-butyl-6,7-bis(chloranyl)quinoxalin-2-amine
C12 H13 Cl2 N3
QYEPFRWKAAVUOP-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.50 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-07-14
    Type: Initial release