Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 3-mer - ABC 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 125573.51 
• Atom Count: 8125 
• Residue Count: 1103 
• Unique protein chains: 3

1OMW

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

• DOI: 10.2210/pdb1OMW/pdb

• Classification: TRANSFERASE
• Organism(s): Bos taurus
• Expression System: Spodoptera frugiperda
• Mutation(s): 1 


• Deposited: 2003-02-26 Released: 2003-06-03 
• Deposition Author(s): Lodowski, D.T., Pitcher, J.A., Capel, W.D., Lefkowitz, R.J., Tesmer, J.J.G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.252 
• R-Value Work: 0.202 

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

• PubMed: 12764189 
• DOI: 10.1126/science.1082348


• 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. 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.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
G-protein coupled receptor kinase 2	A	689	Bos taurus	Mutation(s): 1  Gene Names: GRK2 (ADRBK1) EC: 2.7.11.15
Find proteins for P21146 (Bos taurus) Go to Gene View: GRK2 Go to UniProtKB:  P21146

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Guanine nucleotide-binding protein G(I)/G(S)/G(T) beta subunit 1	B	340	Bos taurus	Mutation(s): 0  Gene Names: GNB1
Find proteins for P62871 (Bos taurus) Go to Gene View: GNB1 Go to UniProtKB:  P62871

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details
Guanine nucleotide-binding protein G(I)/G(S)/G(O) gamma-2 subunit	G	74	Bos taurus	Mutation(s): 0  Gene Names: GNG2
Find proteins for P63212 (Bos taurus) Go to Gene View: GNG2 Go to UniProtKB:  P63212

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CMT	G	L-PEPTIDE LINKING	C4 H9 N O2 S		CYS

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.252 
• R-Value Work: 0.202 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 188.200	α = 90.00
b = 72.500	β = 115.20
c = 122.790	γ = 90.00

Software Package:

Software Name	Purpose
HKL-2000	data reduction
HKL-2000	data scaling
REFMAC	refinement
MOLREP	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2003-02-26 
• Released Date: 2003-06-03 
• Deposition Author(s): Lodowski, D.T., Pitcher, J.A., Capel, W.D., Lefkowitz, R.J., Tesmer, J.J.G.

Revision History 

• Version 1.0: 2003-06-03
  Type: Initial release
• Version 1.1: 2008-04-29
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance
• Version 1.3: 2011-07-27
  Type: Advisory, Refinement description