1OMW

Crystal Structure of the complex between G Protein-Coupled Receptor Kinase 2 and Heterotrimeric G Protein beta 1 and gamma 2 subunits

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.216 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history. 


Literature

Keeping G proteins at Bay: A Complex Between G Protein-Coupled Receptor Kinase 2 and G-Beta-Gamma

Lodowski, D.T., Pitcher, J.A., Capel, W.D., Lefkowitz, R.J., Tesmer, J.J.G.

(2003) Science 300: 1256-1262

  • DOI: 10.1126/science.1082348
  • Primary Citation of Related Structures:  
    1OMW

  • PubMed Abstract: 

    • The phosphorylation of heptahelical receptors by heterotrimeric guanine nucleotide-binding protein (G protein)-coupled receptor kinases (GRKs) is a universal regulatory mechanism that leads to desensitization of G protein signaling and to the activation of alternative signaling pathways ...

    The phosphorylation of heptahelical receptors by heterotrimeric guanine nucleotide-binding protein (G protein)-coupled receptor kinases (GRKs) is a universal regulatory mechanism that leads to desensitization of G protein signaling and to the activation of alternative signaling pathways. We determined the crystallographic structure of bovine GRK2 in complex with G protein beta1gamma2 subunits. Our results show how the three domains of GRK2-the RGS (regulator of G protein signaling) homology, protein kinase, and pleckstrin homology domains-integrate their respective activities and recruit the enzyme to the cell membrane in an orientation that not only facilitates receptor phosphorylation, but also allows for the simultaneous inhibition of signaling by Galpha and Gbetagamma subunits.

    Organizational Affiliation: 

    Institute for Cellular and Molecular Biology, Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
G-protein coupled receptor kinase 2A689Bos taurusMutation(s): 1 
Gene Names: GRK2, ADRBK1
EC: 2.7.1.126 (PDB Primary Data), 2.7.11.15 (UniProt)
UniProt
Find proteins for P21146 (Bos taurus)
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Go to UniProtKB:  P21146
Entity Groups  
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UniProt GroupP21146
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) beta subunit 1B340Bos taurusMutation(s): 0 
Gene Names: GNB1
UniProt
Find proteins for P62871 (Bos taurus)
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Go to UniProtKB:  P62871
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UniProt GroupP62871
Protein Feature View
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) gamma-2 subunitC [auth G]74Bos taurusMutation(s): 1 
Gene Names: GNG2
UniProt
Find proteins for P63212 (Bos taurus)
Explore P63212 
Go to UniProtKB:  P63212
Entity Groups  
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UniProt GroupP63212
Protein Feature View
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  • Reference Sequence
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CMT
Query on CMT		C [auth G]L-PEPTIDE LINKINGC4 H9 N O2 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.50 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.216 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 188.2α = 90
b = 72.5β = 115.2
c = 122.79γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-06-03
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2011-07-27
    Changes: Advisory, Refinement description
  • Version 1.4: 2021-10-27
    Changes: Database references, Derived calculations