6NI3

B2V2R-Gs protein subcomplex of a GPCR-G protein-beta-arrestin mega-complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of an endosomal signaling GPCR-G protein-beta-arrestin megacomplex.

Nguyen, A.H.Thomsen, A.R.B.Cahill 3rd, T.J.Huang, R.Huang, L.Y.Marcink, T.Clarke, O.B.Heissel, S.Masoudi, A.Ben-Hail, D.Samaan, F.Dandey, V.P.Tan, Y.Z.Hong, C.Mahoney, J.P.Triest, S.Little 4th, J.Chen, X.Sunahara, R.Steyaert, J.Molina, H.Yu, Z.des Georges, A.Lefkowitz, R.J.

(2019) Nat.Struct.Mol.Biol. 26: 1123-1131

  • DOI: 10.1038/s41594-019-0330-y
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Classically, G-protein-coupled receptors (GPCRs) are thought to activate G protein from the plasma membrane and are subsequently desensitized by β-arrestin (β-arr). However, some GPCRs continue to signal through G protein from internalized compartmen ...

    Classically, G-protein-coupled receptors (GPCRs) are thought to activate G protein from the plasma membrane and are subsequently desensitized by β-arrestin (β-arr). However, some GPCRs continue to signal through G protein from internalized compartments, mediated by a GPCR-G protein-β-arr 'megaplex'. Nevertheless, the molecular architecture of the megaplex remains unknown. Here, we present its cryo-electron microscopy structure, which shows simultaneous engagement of human G protein and bovine β-arr to the core and phosphorylated tail, respectively, of a single active human chimeric β 2 -adrenergic receptor with the C-terminal tail of the arginine vasopressin type 2 receptor (β 2 V 2 R). All three components adopt their canonical active conformations, suggesting that a single megaplex GPCR is capable of simultaneously activating G protein and β-arr. Our findings provide a structural basis for GPCR-mediated sustained internalized G protein signaling.


    Organizational Affiliation

    Department of Pediatrics, Columbia University Irving Medical Center, New York, NY, USA.,Department of Anesthesiology, Columbia University Irving Medical Center, New York, NY, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, USA.,Structural Biology Research Center, Vlaams Instituut voor Biotechnologie, Brussels, Belgium.,Center for Host-Pathogen Interaction, Columbia University Irving Medical Center, New York, NY, USA.,Department of Surgery, Columbia University Irving Medical Center, New York, NY, USA.,Department of Physiology and Cellular Biophysics, Columbia University Irving Medical Center, New York, NY, USA.,Department of Structural Biology, Stanford University, Stanford, CA, USA.,School of Pharmaceutical Engineering and Life Sciences, Changzhou University, Changzhou, China.,Howard Hughes Medical Institute, Duke University Medical Center, Durham, NC, USA. lefko001@receptor-biol.duke.edu.,Department of Biochemistry and Molecular Biophysics, Columbia University Irving Medical Center, New York, NY, USA.,Biochemistry and Chemistry PhD Programs, Graduate Center, City University of New York, New York, NY, USA. adesgeorges@gc.cuny.edu.,Department of Medicine, Duke University Medical Center, Durham, NC, USA. lefko001@receptor-biol.duke.edu.,Department of Pharmacology, University of Michigan, Ann Arbor, MI, USA.,Structural Biology Initiative, CUNY Advanced Science Research Center, New York, NY, USA. adesgeorges@gc.cuny.edu.,Department of Chemistry and Biochemistry, City College of New York, New York, NY, USA. adesgeorges@gc.cuny.edu.,Department of Biochemistry, Duke University Medical Center, Durham, NC, USA.,Proteomics Resource Center, The Rockefeller University, New York, NY, USA.,Department of Pharmacology, University of California, San Diego, La Jolla, CA, USA.,Department of Biochemistry, Duke University Medical Center, Durham, NC, USA. lefko001@receptor-biol.duke.edu.,Structural Biology Brussels, Vrije Universiteit Brussels, Brussels, Belgium.,The Irving Center for Clinical and Translational Research, Columbia University Irving Medical Center, New York, NY, USA.,Howard Hughes Medical Institute, Janelia Research Campus, Ashburn, VA, USA.,Structural Biology Initiative, CUNY Advanced Science Research Center, New York, NY, USA.,The National Resource for Automated Molecular Microscopy, Simons Electron Microscopy Center, New York Structural Biology Center, New York, NY, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
A
380Homo sapiensMutation(s): 0 
Gene Names: GNAS (GNAS1, GSP)
Membrane protein
mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
β2 adrenergic receptor
Find proteins for P63092 (Homo sapiens)
Go to Gene View: GNAS
Go to UniProtKB:  P63092
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
B
350Homo sapiensMutation(s): 0 
Gene Names: GNB1
Membrane protein
mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
β2 adrenergic receptor
Find proteins for P62873 (Homo sapiens)
Go to Gene View: GNB1
Go to UniProtKB:  P62873
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
G
71Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane protein
mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
β2 adrenergic receptor
Find proteins for P59768 (Homo sapiens)
Go to Gene View: GNG2
Go to UniProtKB:  P59768
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Endolysin,Beta-2 adrenergic receptor chimera
R
506Homo sapiensEnterobacteria phage RB59
This entity is chimeric
Mutation(s): 0 
Gene Names: ADRB2 (ADRB2R, B2AR), e
EC: 3.2.1.17
Membrane protein
mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors (GPCRs)
Protein: 
β2 adrenergic receptor
Find proteins for P07550 (Homo sapiens)
Go to Gene View: ADRB2
Go to UniProtKB:  P07550
Find proteins for A0A097J809 (Enterobacteria phage RB59)
Go to UniProtKB:  A0A097J809
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
Nanobody 35
N
138N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
P0G
Query on P0G

Download SDF File 
Download CCD File 
R
8-[(1R)-2-{[1,1-dimethyl-2-(2-methylphenyl)ethyl]amino}-1-hydroxyethyl]-5-hydroxy-2H-1,4-benzoxazin-3(4H)-one
C21 H26 N2 O4
NWQXBEWHTDRJIP-KRWDZBQOSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Howard Hughes Medical Institute (HHMI)United States--
National Institutes of Health/National Heart, Lung, and Blood Institute (NIH/NHLBI)United States2R01-HL016037-47

Revision History 

  • Version 1.0: 2019-11-20
    Type: Initial release
  • Version 1.1: 2019-12-04
    Type: Database references
  • Version 1.2: 2019-12-18
    Type: Database references