Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - AB 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 53730.47 
• Atom Count: 3610 
• Residue Count: 472 
• Unique protein chains: 2

4GBR

N-Terminal T4 Lysozyme Fusion Facilitates Crystallization of a G Protein Coupled Receptor

• DOI: 10.2210/pdb4GBR/pdb

• Classification: MEMBRANE PROTEIN/HYDROLASE
• Organism(s): Enterobacteria phage T4, Homo sapiens
• Expression System: insect cells
• Mutation(s): 3 


• Deposited: 2012-07-27 Released: 2012-10-24 
• Deposition Author(s): Zou, Y., Weis, W.I., Kobilka, B.K.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.993 Å
• R-Value Free: 0.282 
• R-Value Work: 0.265 

Literature

N-terminal t4 lysozyme fusion facilitates crystallization of a g protein coupled receptor.

Zou, Y., Weis, W.I., Kobilka, B.K.

(2012) Plos One 7: e46039-e46039

• PubMed: 23056231 
• DOI: 10.1371/journal.pone.0046039


• PubMed Abstract: 
  

A highly crystallizable T4 lysozyme (T4L) was fused to the N-terminus of the β(2) adrenergic receptor (β(2)AR), a G-protein coupled receptor (GPCR) for catecholamines. We demonstrate that the N-terminal fused T4L is sufficiently rigid relative to the receptor to facilitate crystallogenesis without thermostabilizing mutations or the use of a stabilizing antibody, G protein, or protein fused to the 3rd intracellular loop. This approach adds to the protein engineering strategies that enable crystallographic studies of GPCRs alone or in complex with a signaling partner.

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Organizational Affiliation: 

Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, California, United States of America.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Beta-2 adrenergic receptor	A	309	Homo sapiens	Mutation(s): 3  Gene Names: ADRB2 (ADRB2R, B2AR)
Membrane protein mpstruct	Group:  TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group:  G Protein-Coupled Receptors (GPCRs)	Protein:  β2 adrenergic receptor
Find proteins for P07550 (Homo sapiens) Go to Gene View: ADRB2 Go to UniProtKB:  P07550

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details
Lysozyme	B	163	Enterobacteria phage T4	Mutation(s): 0  Gene Names: E EC: 3.2.1.17
Membrane protein mpstruct	Group:  TRANSMEMBRANE PROTEINS: ALPHA-HELICAL		Sub Group:  G Protein-Coupled Receptors (GPCRs)	Protein:  β2 adrenergic receptor
Find proteins for P00720 (Enterobacteria phage T4) Go to UniProtKB:  P00720

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CAU	A	(2S)-1-(9H-Carbazol-4-yloxy)-3-(isopropylamino)propan-2-ol (S)-Carazolol C18 H22 N2 O2 BQXQGZPYHWWCEB-ZDUSSCGKSA-N

External Ligand Annotations
ID	Binding Affinity (Sequence Identity %)
CAU	Ki: 0.1 nM (90) BINDINGDB

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.993 Å
• R-Value Free: 0.282 
• R-Value Work: 0.265 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length (Å)	Angle (°)
a = 51.382	α = 90.00
b = 71.376	β = 90.00
c = 161.370	γ = 90.00

Software Package:

Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
MOLREP	phasing
APEX	data collection
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2012-07-27 
• Released Date: 2012-10-24 
• Deposition Author(s): Zou, Y., Weis, W.I., Kobilka, B.K.

Revision History 

• Version 1.0: 2012-10-24
  Type: Initial release