8HBH

Structure of human soluble guanylate cyclase in the NO-activated state at 3.1 angstrom


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.10 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

NO binds to the distal site of haem in the fully activated soluble guanylate cyclase.

Liu, R.Kang, Y.Chen, L.

(2023) Nitric Oxide 134-135: 17-22

  • DOI: https://doi.org/10.1016/j.niox.2023.03.002
  • Primary Citation of Related Structures:  
    8HBE, 8HBF, 8HBH

  • PubMed Abstract: 

    Soluble guanylate cyclase (sGC) is the primary receptor for nitric oxide (NO). The binding of NO to the haem of sGC induces a large conformational change in the enzyme and activates its cyclase activity. However, whether NO binds to the proximal site or the distal site of haem in the fully activated state remains under debate. Here, we present cryo-EM maps of sGC in the NO-activated state at high resolutions, allowing the observation of the density of NO. These cryo-EM maps show the binding of NO to the distal site of haem in the NO-activated state.


  • Organizational Affiliation

    State Key Laboratory of Membrane Biology, College of Future Technology, Institute of Molecular Medicine, Peking University, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Beijing, 100871, China; National Biomedical Imaging Center, Peking University, Beijing, 100871, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Guanylate cyclase soluble subunit alpha-1690Homo sapiensMutation(s): 2 
Gene Names: GUCY1A1GUC1A3GUCSA3GUCY1A3
EC: 4.6.1.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02108 (Homo sapiens)
Explore Q02108 
Go to UniProtKB:  Q02108
PHAROS:  Q02108
GTEx:  ENSG00000164116 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ02108
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanylate cyclase soluble subunit beta-1619Homo sapiensMutation(s): 0 
Gene Names: GUCY1B1GUC1B3GUCSB3GUCY1B3
EC: 4.6.1.2
UniProt & NIH Common Fund Data Resources
Find proteins for Q02153 (Homo sapiens)
Explore Q02153 
Go to UniProtKB:  Q02153
PHAROS:  Q02153
GTEx:  ENSG00000061918 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ02153
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
HEM
Query on HEM

Download Ideal Coordinates CCD File 
F [auth B]PROTOPORPHYRIN IX CONTAINING FE
C34 H32 Fe N4 O4
KABFMIBPWCXCRK-RGGAHWMASA-L
G2P
Query on G2P

Download Ideal Coordinates CCD File 
E [auth B]PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
C11 H18 N5 O13 P3
GXTIEXDFEKYVGY-KQYNXXCUSA-N
NO (Subject of Investigation/LOI)
Query on NO

Download Ideal Coordinates CCD File 
G [auth B]NITRIC OXIDE
N O
ODUCDPQEXGNKDN-UHFFFAOYSA-N
MG
Query on MG

Download Ideal Coordinates CCD File 
C [auth A],
D [auth A]
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.10 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONRELION3.0

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China91957201
National Natural Science Foundation of China (NSFC)China31821091
National Natural Science Foundation of China (NSFC)China31870833

Revision History  (Full details and data files)

  • Version 1.0: 2023-04-19
    Type: Initial release
  • Version 1.1: 2024-07-03
    Changes: Data collection