Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

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 | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 68.21 kDa 
• Atom Count: 4277 
• Modelled Residue Count: 556 
• Deposited Residue Count: 598 
• Unique protein chains: 1

3SHR

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

• PDB DOI: 10.2210/pdb3SHR/pdb

• Classification: TRANSFERASE
• Organism(s): Bos taurus
• Expression System: Escherichia coli
• Mutation(s): No 


• 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: 2.50 Å
• R-Value Free: 0.277 
• R-Value Work: 0.221 
• R-Value Observed: 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
• Primary Citation of Related Structures:  
  3SHR


• 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

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

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CMP	C [auth A], F [auth B]	ADENOSINE-3',5'-CYCLIC-MONOPHOSPHATE C10 H12 N5 O6 P IVOMOUWHDPKRLL-KQYNXXCUSA-N
SO4	D [auth A], E [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.277 
• R-Value Work: 0.221 
• R-Value Observed: 0.221 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 180.156	α = 90
b = 66.039	β = 113.84
c = 81.55	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
CNS	refinement
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