4GJ4

The Crystal Structure of the soluble Guanylate Cyclase PAS alpha domain from Manduca sexta


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of the Alpha subunit PAS domain from soluble guanylyl cyclase.

Purohit, R.Weichsel, A.Montfort, W.R.

(2013) Protein Sci. 22: 1439-1444

  • DOI: 10.1002/pro.2331

  • PubMed Abstract: 
  • Soluble guanylate cyclase (sGC) is a heterodimeric heme protein of ≈ 150 kDa and the primary nitric oxide receptor. Binding of NO stimulates cyclase activity, leading to regulation of cardiovascular physiology and providing attractive opportunities f ...

    Soluble guanylate cyclase (sGC) is a heterodimeric heme protein of ≈ 150 kDa and the primary nitric oxide receptor. Binding of NO stimulates cyclase activity, leading to regulation of cardiovascular physiology and providing attractive opportunities for drug discovery. How sGC is stimulated and where candidate drugs bind remains unknown. The α and β sGC chains are each composed of Heme-Nitric Oxide Oxygen (H-NOX), Per-ARNT-Sim (PAS), coiled-coil and cyclase domains. Here, we present the crystal structure of the α1 PAS domain to 1.8 Å resolution. The structure reveals the binding surfaces of importance to heterodimer function, particularly with respect to regulating NO binding to heme in the β1 H-NOX domain. It also reveals a small internal cavity that may serve to bind ligands or participate in signal transduction.


    Organizational Affiliation

    Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona, 85721.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Soluble guanylyl cyclase alpha-1 subunit
A, B, C, D
126Manduca sextaMutation(s): 3 
Find proteins for O77105 (Manduca sexta)
Go to UniProtKB:  O77105
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B, C, D
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.196 
  • Space Group: H 3 2
Unit Cell:
Length (Å)Angle (°)
a = 95.424α = 90.00
b = 95.424β = 90.00
c = 317.693γ = 120.00
Software Package:
Software NamePurpose
MAR345data collection
CrystalCleardata reduction
CrystalCleardata scaling
MrBUMPphasing
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-08-14
    Type: Initial release
  • Version 1.1: 2013-08-28
    Type: Database references
  • Version 1.2: 2013-10-09
    Type: Database references
  • Version 1.3: 2017-11-15
    Type: Refinement description