6PWC

A complex structure of arrestin-2 bound to neurotensin receptor 1


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.2 of the entry. See complete history


Literature

A complex structure of arrestin-2 bound to a G protein-coupled receptor.

Yin, W.Li, Z.Jin, M.Yin, Y.L.de Waal, P.W.Pal, K.Yin, Y.Gao, X.He, Y.Gao, J.Wang, X.Zhang, Y.Zhou, H.Melcher, K.Jiang, Y.Cong, Y.Edward Zhou, X.Yu, X.Eric Xu, H.

(2019) Cell Res 29: 971-983

  • DOI: 10.1038/s41422-019-0256-2
  • Primary Citation of Related Structures:  
    6PWC

  • PubMed Abstract: 
  • Arrestins comprise a family of signal regulators of G-protein-coupled receptors (GPCRs), which include arrestins 1 to 4. While arrestins 1 and 4 are visual arrestins dedicated to rhodopsin, arrestins 2 and 3 (Arr2 and Arr3) are β-arrestins known to regul ...

    Arrestins comprise a family of signal regulators of G-protein-coupled receptors (GPCRs), which include arrestins 1 to 4. While arrestins 1 and 4 are visual arrestins dedicated to rhodopsin, arrestins 2 and 3 (Arr2 and Arr3) are β-arrestins known to regulate many nonvisual GPCRs. The dynamic and promiscuous coupling of Arr2 to nonvisual GPCRs has posed technical challenges to tackle the basis of arrestin binding to GPCRs. Here we report the structure of Arr2 in complex with neurotensin receptor 1 (NTSR1), which reveals an overall assembly that is strikingly different from the visual arrestin-rhodopsin complex by a 90° rotation of Arr2 relative to the receptor. In this new configuration, intracellular loop 3 (ICL3) and transmembrane helix 6 (TM6) of the receptor are oriented toward the N-terminal domain of the arrestin, making it possible for GPCRs that lack the C-terminal tail to couple Arr2 through their ICL3. Molecular dynamics simulation and crosslinking data further support the assembly of the Arr2‒NTSR1 complex. Sequence analysis and homology modeling suggest that the Arr2‒NTSR1 complex structure may provide an alternative template for modeling arrestin-GPCR interactions.


    Organizational Affiliation

    Center for Cancer and Cell Biology, Program for Structural Biology, Van Andel Research Institute, Grand Rapids, MI, 49503, USA. eric.xu@simm.ac.cn.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Neurotensin receptor type 1 R370Homo sapiensMutation(s): 0 
Gene Names: NTSR1NTRR
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
NTSR1 neurotensin receptor in complex with Arrestin-2
Find proteins for P30989 (Homo sapiens)
Explore P30989 
Go to UniProtKB:  P30989
NIH Common Fund Data Resources
PHAROS:  P30989
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Neurotensin peptide B6synthetic constructMutation(s): 0 
Protein Feature View
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-arrestin-1 A393Homo sapiensMutation(s): 0 
Gene Names: ARRB1ARR1
Membrane protein
Mpstruc
Group: 
TRANSMEMBRANE PROTEINS: ALPHA-HELICAL
Sub Group: 
G Protein-Coupled Receptors: Class A
Protein: 
NTSR1 neurotensin receptor in complex with Arrestin-2
Find proteins for P49407 (Homo sapiens)
Explore P49407 
Go to UniProtKB:  P49407
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PHAROS:  P49407
Protein Feature View
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Fab30 heavy chain H238synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
Fab30 light chain L215synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesR01GM127710
Ministry of Science and Technology (MoST, China)ChinaXDB08020303

Revision History 

  • Version 1.0: 2019-12-04
    Type: Initial release
  • Version 1.1: 2019-12-18
    Changes: Database references
  • Version 1.2: 2020-01-08
    Changes: Author supporting evidence