7DFB

Crystal of Arrestin2-V2Rpp-6-7-Fab30 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.234 

wwPDB Validation   3D Report Full Report


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Literature

Structural studies of phosphorylation-dependent interactions between the V2R receptor and arrestin-2.

He, Q.T.Xiao, P.Huang, S.M.Jia, Y.L.Zhu, Z.L.Lin, J.Y.Yang, F.Tao, X.N.Zhao, R.J.Gao, F.Y.Niu, X.G.Xiao, K.H.Wang, J.Jin, C.Sun, J.P.Yu, X.

(2021) Nat Commun 12: 2396-2396

  • DOI: 10.1038/s41467-021-22731-x
  • Primary Citation of Related Structures:  
    7DFC, 7DFA, 7DFB, 7DF9

  • PubMed Abstract: 
  • Arrestins recognize different receptor phosphorylation patterns and convert this information to selective arrestin functions to expand the functional diversity of the G protein-coupled receptor (GPCR) superfamilies. However, the principles governing arrestin-phospho-receptor interactions, as well as the contribution of each single phospho-interaction to selective arrestin structural and functional states, are undefined ...

    Arrestins recognize different receptor phosphorylation patterns and convert this information to selective arrestin functions to expand the functional diversity of the G protein-coupled receptor (GPCR) superfamilies. However, the principles governing arrestin-phospho-receptor interactions, as well as the contribution of each single phospho-interaction to selective arrestin structural and functional states, are undefined. Here, we determined the crystal structures of arrestin2 in complex with four different phosphopeptides derived from the vasopressin receptor-2 (V2R) C-tail. A comparison of these four crystal structures with previously solved Arrestin2 structures demonstrated that a single phospho-interaction change results in measurable conformational changes at remote sites in the complex. This conformational bias introduced by specific phosphorylation patterns was further inspected by FRET and 1 H NMR spectrum analysis facilitated via genetic code expansion. Moreover, an interdependent phospho-binding mechanism of phospho-receptor-arrestin interactions between different phospho-interaction sites was unexpectedly revealed. Taken together, our results provide evidence showing that phospho-interaction changes at different arrestin sites can elicit changes in affinity and structural states at remote sites, which correlate with selective arrestin functions.


    Organizational Affiliation

    Key Laboratory Experimental Teratology of the Ministry of Education and Department of Physiology, School of Basic Medical Sciences, Cheeloo college of Medicine, Shandong University, Jinan, Shandong, China. yuxiao@sdu.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Beta-arrestin-1A426Bos taurusMutation(s): 0 
Gene Names: ARRB1
UniProt
Find proteins for P17870 (Bos taurus)
Explore P17870 
Go to UniProtKB:  P17870
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
V2Rpp-6-7B [auth V]23synthetic constructMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
FAB30 LIGHT CHAINC [auth L]227Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
FAB30 HEAVY CHAIND [auth H]249Mus musculusMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
B [auth V]L-PEPTIDE LINKINGC3 H8 N O6 PSER
TPO
Query on TPO
B [auth V]L-PEPTIDE LINKINGC4 H10 N O6 PTHR
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.28 Å
  • R-Value Free: 0.290 
  • R-Value Work: 0.231 
  • R-Value Observed: 0.234 
  • Space Group: I 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 115.48α = 90
b = 116.881β = 90
c = 143.897γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (MoST, China)China--

Revision History  (Full details and data files)

  • Version 1.0: 2021-07-28
    Type: Initial release