8J8Z

Structure of beta-arrestin1 in complex with D6Rpp


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Molecular insights into atypical modes of beta-arrestin interaction with seven transmembrane receptors.

Maharana, J.Sano, F.K.Sarma, P.Yadav, M.K.Duan, L.Stepniewski, T.M.Chaturvedi, M.Ranjan, A.Singh, V.Saha, S.Mahajan, G.Chami, M.Shihoya, W.Selent, J.Chung, K.Y.Banerjee, R.Nureki, O.Shukla, A.K.

(2024) Science 383: 101-108

  • DOI: https://doi.org/10.1126/science.adj3347
  • Primary Citation of Related Structures:  
    8GO9, 8J8R, 8J8V, 8J8Z, 8J97, 8J9K, 8JA3, 8JAF

  • PubMed Abstract: 

    β-arrestins (βarrs) are multifunctional proteins involved in signaling and regulation of seven transmembrane receptors (7TMRs), and their interaction is driven primarily by agonist-induced receptor activation and phosphorylation. Here, we present seven cryo-electron microscopy structures of βarrs either in the basal state, activated by the muscarinic receptor subtype 2 (M2R) through its third intracellular loop, or activated by the βarr-biased decoy D6 receptor (D6R). Combined with biochemical, cellular, and biophysical experiments, these structural snapshots allow the visualization of atypical engagement of βarrs with 7TMRs and also reveal a structural transition in the carboxyl terminus of βarr2 from a β strand to an α helix upon activation by D6R. Our study provides previously unanticipated molecular insights into the structural and functional diversity encoded in 7TMR-βarr complexes with direct implications for exploring novel therapeutic avenues.


  • Organizational Affiliation

    Department of Biological Sciences, Indian Institute of Technology Kanpur, Kanpur, India.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Beta-arrestin-1A,
E [auth B]
418Rattus norvegicusMutation(s): 0 
Gene Names: Arrb1
UniProt
Find proteins for P29066 (Rattus norvegicus)
Explore P29066 
Go to UniProtKB:  P29066
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UniProt GroupP29066
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Fab30 Heavy ChainB [auth H],
F [auth I]
237Mus musculusMutation(s): 0 
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Fab30 Light ChainC [auth L],
G [auth M]
215Mus musculusMutation(s): 0 
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  • Reference Sequence

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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Atypical chemokine receptor 2D [auth V],
H [auth U]
18Homo sapiensMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for O00590 (Homo sapiens)
Explore O00590 
Go to UniProtKB:  O00590
GTEx:  ENSG00000144648 
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UniProt GroupO00590
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  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChains TypeFormula2D DiagramParent
SEP
Query on SEP
D [auth V],
H [auth U]
L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
D [auth V],
H [auth U]
L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX
RECONSTRUCTIONcryoSPARC3.3.1

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Science and Engineering Research Board (SERB)IndiaIPA/2020/000405
Department of Biotechnology (DBT, India)IndiaIA/S/20/1/504916
Science and Engineering Research Board (SERB)IndiaCRG/2022/002646
Science and Engineering Research Board (SERB)IndiaSPR/2020/000408

Revision History  (Full details and data files)

  • Version 1.0: 2023-12-27
    Type: Initial release
  • Version 1.1: 2024-01-17
    Changes: Database references