7CKZ

Cryo-EM structure of Dopamine and LY3154207 bound dopamine receptor DRD1-Gs signaling complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.10 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

Ligand recognition and allosteric regulation of DRD1-Gs signaling complexes.

Xiao, P.Yan, W.Gou, L.Zhong, Y.N.Kong, L.Wu, C.Wen, X.Yuan, Y.Cao, S.Qu, C.Yang, X.Yang, C.C.Xia, A.Hu, Z.Zhang, Q.He, Y.H.Zhang, D.L.Zhang, C.Hou, G.H.Liu, H.Zhu, L.Fu, P.Yang, S.Rosenbaum, D.M.Sun, J.P.Du, Y.Zhang, L.Yu, X.Shao, Z.

(2021) Cell 184: 943-956.e18

  • DOI: https://doi.org/10.1016/j.cell.2021.01.028
  • Primary Citation of Related Structures:  
    7CKW, 7CKX, 7CKY, 7CKZ, 7CRH

  • PubMed Abstract: 

    Dopamine receptors, including D1- and D2-like receptors, are important therapeutic targets in a variety of neurological syndromes, as well as cardiovascular and kidney diseases. Here, we present five cryoelectron microscopy (cryo-EM) structures of the dopamine D1 receptor (DRD1) coupled to Gs heterotrimer in complex with three catechol-based agonists, a non-catechol agonist, and a positive allosteric modulator for endogenous dopamine. These structures revealed that a polar interaction network is essential for catecholamine-like agonist recognition, whereas specific motifs in the extended binding pocket were responsible for discriminating D1- from D2-like receptors. Moreover, allosteric binding at a distinct inner surface pocket improved the activity of DRD1 by stabilizing endogenous dopamine interaction at the orthosteric site. DRD1-Gs interface revealed key features that serve as determinants for G protein coupling. Together, our study provides a structural understanding of the ligand recognition, allosteric regulation, and G protein coupling mechanisms of DRD1.


  • Organizational Affiliation

    Division of Nephrology and Kidney Research Institute, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China; Key Laboratory Experimental Teratology of the Ministry of Education and Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, China.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short394Homo sapiensMutation(s): 3 
Gene Names: GNASGNAS1GSP
EC: 3.6.5
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P63092 (Homo sapiens)
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Go to UniProtKB:  P63092
PHAROS:  P63092
GTEx:  ENSG00000087460 
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UniProt GroupP63092
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1348Homo sapiensMutation(s): 0 
Gene Names: GNB1
UniProt & NIH Common Fund Data Resources
Find proteins for P62873 (Homo sapiens)
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PHAROS:  P62873
GTEx:  ENSG00000078369 
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UniProt GroupP62873
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2C [auth G]71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
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Find proteins for P59768 (Homo sapiens)
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PHAROS:  P59768
GTEx:  ENSG00000186469 
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UniProt GroupP59768
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Nanobody 35D [auth N]156Lama glamaMutation(s): 0 
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
D(1A) dopamine receptorE [auth R]446Homo sapiensMutation(s): 0 
Gene Names: DRD1
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P21728 (Homo sapiens)
Explore P21728 
Go to UniProtKB:  P21728
PHAROS:  P21728
GTEx:  ENSG00000184845 
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UniProt GroupP21728
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Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
LDP BindingDB:  7CKZ Ki: min: 7, max: 1.82e+4 (nM) from 29 assay(s)
Kd: 2500 (nM) from 1 assay(s)
IC50: min: 2, max: 1.00e+4 (nM) from 14 assay(s)
EC50: min: 20, max: 5000 (nM) from 10 assay(s)
G4C BindingDB:  7CKZ EC50: min: 1.1, max: 62 (nM) from 5 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.10 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: 2021-03-03
    Type: Initial release