7JVR

Cryo-EM structure of Bromocriptine-bound dopamine receptor 2 in complex with Gi protein


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Structural insights into the human D1 and D2 dopamine receptor signaling complexes.

Zhuang, Y.Xu, P.Mao, C.Wang, L.Krumm, B.Zhou, X.E.Huang, S.Liu, H.Cheng, X.Huang, X.P.Shen, D.D.Xu, T.Liu, Y.F.Wang, Y.Guo, J.Jiang, Y.Jiang, H.Melcher, K.Roth, B.L.Zhang, Y.Zhang, C.Xu, H.E.

(2021) Cell 184: 931-942.e18

  • DOI: 10.1016/j.cell.2021.01.027
  • Primary Citation of Related Structures:  
    7JVQ, 7JVR, 7JVP, 7JV5

  • PubMed Abstract: 
  • The D1- and D2-dopamine receptors (D1R and D2R), which signal through G s and G i , respectively, represent the principal stimulatory and inhibitory dopamine receptors in the central nervous system. D1R and D2R also represent the main therapeutic targets for Parkinson's disease, schizophrenia, and many other neuropsychiatric disorders, and insight into their signaling is essential for understanding both therapeutic and side effects of dopaminergic drugs ...

    The D1- and D2-dopamine receptors (D1R and D2R), which signal through G s and G i , respectively, represent the principal stimulatory and inhibitory dopamine receptors in the central nervous system. D1R and D2R also represent the main therapeutic targets for Parkinson's disease, schizophrenia, and many other neuropsychiatric disorders, and insight into their signaling is essential for understanding both therapeutic and side effects of dopaminergic drugs. Here, we report four cryoelectron microscopy (cryo-EM) structures of D1R-G s and D2R-G i signaling complexes with selective and non-selective dopamine agonists, including two currently used anti-Parkinson's disease drugs, apomorphine and bromocriptine. These structures, together with mutagenesis studies, reveal the conserved binding mode of dopamine agonists, the unique pocket topology underlying ligand selectivity, the conformational changes in receptor activation, and potential structural determinants for G protein-coupling selectivity. These results provide both a molecular understanding of dopamine signaling and multiple structural templates for drug design targeting the dopaminergic system.


    Organizational Affiliation

    The CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Life Science and Technology, ShanghaiTech University, Shanghai 201210, China. Electronic address: eric.xu@simm.ac.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Soluble cytochrome b562,D(2) dopamine receptorA [auth R]588Escherichia coliHomo sapiens
This entity is chimeric
Mutation(s): 0 
Gene Names: cybCDRD2
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
Dopamine D2 receptor complexed with Gi protein with bound bromocriptine
Find proteins for P0ABE7 (Escherichia coli)
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PHAROS:  P14416
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(i) subunit alpha-1B [auth A]354Homo sapiensMutation(s): 4 
Gene Names: GNAI1
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
Dopamine D2 receptor complexed with Gi protein with bound bromocriptine
Find proteins for P63096 (Homo sapiens)
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PHAROS:  P63096
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1C [auth B]348Homo sapiensMutation(s): 0 
Gene Names: GNB1
Find proteins for P62873 (Homo sapiens)
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PHAROS:  P62873
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2D [auth C]71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
Dopamine D2 receptor complexed with Gi protein with bound bromocriptine
Find proteins for P59768 (Homo sapiens)
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Antibody fragment ScFv16E269synthetic constructMutation(s): 0 
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Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
08Y
Query on 08Y

Download Ideal Coordinates CCD File 
F [auth R]bromoergocryptine
C32 H40 Br N5 O5
OZVBMTJYIDMWIL-AYFBDAFISA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.80 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China81922071
National Natural Science Foundation of China (NSFC)China31770796
National Institutes of Health/National Institute of Mental Health (NIH/NIMH)United StatesRO1MH112205
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR35GM128641

Revision History  (Full details and data files)

  • Version 1.0: 2021-02-24
    Type: Initial release
  • Version 1.1: 2021-03-03
    Changes: Database references
  • Version 2.0: 2021-03-31
    Type: Coordinate replacement
    Reason: Ligand geometry
    Changes: Atomic model, Data collection, Structure summary