Biological Assembly 1  

 3D View: Structure | Electron Density | Ligand Interaction

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Protein Workshop | Ligand Explorer

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

 3D View: Structure | Electron Density | Ligand Interaction

Standalone Viewers  
Protein Workshop | Ligand Explorer

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 68211.47 
• Atom Count: 4277 
• Residue Count: 598 
• Unique protein chains: 1

3SHR

Crystal Structure of cGMP-dependent Protein Kinase Reveals Novel Site of Interchain Communication

• DOI: 10.2210/pdb3SHR/pdb

• Classification: TRANSFERASE
• Organism(s): Bos taurus
• Expression System: Escherichia coli


• Deposited: 2011-06-16 Released: 2011-09-21 
• Deposition Author(s): Osborne, B.W., Wu, J., Taylor, S.S., Dostmann, W.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.277 
• R-Value Work: 0.221 

Literature

Crystal Structure of cGMP-Dependent Protein Kinase Reveals Novel Site of Interchain Communication.

Osborne, B.W., Wu, J., McFarland, C.J., Nickl, C.K., Sankaran, B., Casteel, D.E., Woods, V.L., Kornev, A.P., Taylor, S.S., Dostmann, W.R.

(2011) Structure 19: 1317-1327

• PubMed: 21893290 
• DOI: 10.1016/j.str.2011.06.012


• PubMed Abstract: 
  

The cGMP-dependent protein kinase (PKG) serves as an integral component of second messenger signaling in a number of biological contexts including cell differentiation, memory, and vasodilation. PKG is homodimeric and large conformational changes accompany cGMP binding. However, the structure of PKG and the molecular mechanisms associated with protomer communication following cGMP-induced activation remain unknown. Here, we report the 2.5 Å crystal structure of a regulatory domain construct (aa 78-355) containing both cGMP binding sites of PKG Iα. A distinct and segregated architecture with an extended central helix separates the two cGMP binding domains. Additionally, a previously uncharacterized helical domain (switch helix) promotes the formation of a hydrophobic interface between protomers. Mutational disruption of this interaction in full-length PKG implicates the switch helix as a critical site of dimer communication in PKG biology. These results offer new structural insight into the mechanism of allosteric PKG activation.

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Organizational Affiliation: 

Department of Pharmacology, College of Medicine, University of Vermont, Burlington, VT 05405, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
cGMP-dependent protein kinase 1	A, B	299	Bos taurus	Mutation(s): 0  Gene Names: PRKG1 (PRKG1B, PRKGR1A, PRKGR1B) EC: 2.7.11.12
Find proteins for P00516 (Bos taurus) Go to Gene View: PRKG1 Go to UniProtKB:  P00516

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
SO4	A	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
CMP	A, B	ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE CYCLIC AMP; CAMP C10 H12 N5 O6 P IVOMOUWHDPKRLL-KQYNXXCUSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.5 Å
• R-Value Free: 0.277 
• R-Value Work: 0.221 
• Space Group: C 1 2 1

Unit Cell:

Length (Å)	Angle (°)
a = 180.156	α = 90.00
b = 66.039	β = 113.84
c = 81.550	γ = 90.00

Software Package:

Software Name	Purpose
CNS	refinement
HKL-2000	data collection
HKL-2000	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-06-16 
• Released Date: 2011-09-21 
• Deposition Author(s): Osborne, B.W., Wu, J., Taylor, S.S., Dostmann, W.R.

Revision History 

• Version 1.0: 2011-09-21
  Type: Initial release