6JT2

Structure of human soluble guanylate cyclase in the NO activated state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural insights into the mechanism of human soluble guanylate cyclase.

Kang, Y.Liu, R.Wu, J.X.Chen, L.

(2019) Nature 574: 206-210

  • DOI: 10.1038/s41586-019-1584-6
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Soluble guanylate cyclase (sGC) is the primary sensor of nitric oxide. It has a central role in nitric oxide signalling and has been implicated in many essential physiological processes and disease conditions. The binding of nitric oxide boosts the e ...

    Soluble guanylate cyclase (sGC) is the primary sensor of nitric oxide. It has a central role in nitric oxide signalling and has been implicated in many essential physiological processes and disease conditions. The binding of nitric oxide boosts the enzymatic activity of sGC. However, the mechanism by which nitric oxide activates the enzyme is unclear. Here we report the cryo-electron microscopy structures of the human sGCα1β1 heterodimer in different functional states. These structures revealed that the transducer module bridges the nitric oxide sensor module and the catalytic module. Binding of nitric oxide to the β1 haem-nitric oxide and oxygen binding (H-NOX) domain triggers the structural rearrangement of the sensor module and a conformational switch of the transducer module from bending to straightening. The resulting movement of the N termini of the catalytic domains drives structural changes within the catalytic module, which in turn boost the enzymatic activity of sGC.


    Organizational Affiliation

    State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Beijing, China.,State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Beijing, China. chenlei2016@pku.edu.cn.,Peking-Tsinghua Center for Life Sciences, Peking University, Beijing, China. chenlei2016@pku.edu.cn.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China. chenlei2016@pku.edu.cn.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Guanylate cyclase soluble subunit alpha-1
A
690Homo sapiensMutation(s): 0 
Gene Names: GUCY1A1 (GUC1A3, GUCSA3, GUCY1A3)
EC: 4.6.1.2
Find proteins for Q02108 (Homo sapiens)
Go to UniProtKB:  Q02108
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Guanylate cyclase soluble subunit beta-1
B
619Homo sapiensMutation(s): 0 
Gene Names: GUCY1B1 (GUC1B3, GUCSB3, GUCY1B3)
EC: 4.6.1.2
Find proteins for Q02153 (Homo sapiens)
Go to UniProtKB:  Q02153
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
HEM
Query on HEM

Download SDF File 
Download CCD File 
B
PROTOPORPHYRIN IX CONTAINING FE
HEME
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
 Ligand Interaction
G2P
Query on G2P

Download SDF File 
Download CCD File 
A
PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
C11 H18 N5 O13 P3
GXTIEXDFEKYVGY-KQYNXXCUSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (China)China2016YFA0502004
National Natural Science Foundation of ChinaChina31622021
National Natural Science Foundation of ChinaChina31821091
National Natural Science Foundation of ChinaChina31870833

Revision History 

  • Version 1.0: 2019-09-04
    Type: Initial release
  • Version 1.1: 2019-10-09
    Type: Data collection, Database references
  • Version 1.2: 2019-10-16
    Type: Data collection, Database references
  • Version 1.3: 2019-10-23
    Type: Data collection, Database references