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- PDB-8hbe: Structure of human soluble guanylate cyclase in the inactive stat... -

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Basic information

Entry
Database: PDB / ID: 8hbe
TitleStructure of human soluble guanylate cyclase in the inactive state at 3.1 angstrom
Components
  • Guanylate cyclase soluble subunit alpha-1
  • Guanylate cyclase soluble subunit beta-1
KeywordsSIGNALING PROTEIN / soluble guanylate cyclase
Function / homology
Function and homology information


retrograde trans-synaptic signaling by nitric oxide, modulating synaptic transmission / cytidylate cyclase activity / trans-synaptic signaling by nitric oxide, modulating synaptic transmission / guanylate cyclase complex, soluble / guanylate cyclase / cGMP biosynthetic process / guanylate cyclase activity / presynaptic active zone cytoplasmic component / response to oxygen levels / Nitric oxide stimulates guanylate cyclase ...retrograde trans-synaptic signaling by nitric oxide, modulating synaptic transmission / cytidylate cyclase activity / trans-synaptic signaling by nitric oxide, modulating synaptic transmission / guanylate cyclase complex, soluble / guanylate cyclase / cGMP biosynthetic process / guanylate cyclase activity / presynaptic active zone cytoplasmic component / response to oxygen levels / Nitric oxide stimulates guanylate cyclase / relaxation of vascular associated smooth muscle / adenylate cyclase activity / blood circulation / positive regulation of nitric oxide mediated signal transduction / cGMP-mediated signaling / cellular response to nitric oxide / Smooth Muscle Contraction / nitric oxide mediated signal transduction / GABA-ergic synapse / nitric oxide-cGMP-mediated signaling / Hsp90 protein binding / regulation of blood pressure / signaling receptor activity / glutamatergic synapse / heme binding / protein-containing complex binding / GTP binding / metal ion binding / cytosol
Similarity search - Function
Haem NO binding associated / Haem NO binding associated domain superfamily / Heme NO binding associated / Heme NO-binding / H-NOX domain superfamily / Haem-NO-binding / Adenylyl cyclase class-4/guanylyl cyclase, conserved site / Guanylate cyclase signature. / NO signalling/Golgi transport ligand-binding domain superfamily / Adenylyl- / guanylyl cyclase, catalytic domain ...Haem NO binding associated / Haem NO binding associated domain superfamily / Heme NO binding associated / Heme NO-binding / H-NOX domain superfamily / Haem-NO-binding / Adenylyl cyclase class-4/guanylyl cyclase, conserved site / Guanylate cyclase signature. / NO signalling/Golgi transport ligand-binding domain superfamily / Adenylyl- / guanylyl cyclase, catalytic domain / Adenylate and Guanylate cyclase catalytic domain / Adenylyl cyclase class-3/4/guanylyl cyclase / Guanylate cyclase domain profile. / Nucleotide cyclase
Similarity search - Domain/homology
PROTOPORPHYRIN IX CONTAINING FE / Guanylate cyclase soluble subunit alpha-1 / Guanylate cyclase soluble subunit beta-1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsChen, L. / Liu, R.
Funding support China, 3items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)91957201 China
National Natural Science Foundation of China (NSFC)31821091 China
National Natural Science Foundation of China (NSFC)31870833 China
CitationJournal: Nitric Oxide / Year: 2023
Title: NO binds to the distal site of haem in the fully activated soluble guanylate cyclase.
Authors: Rui Liu / Yunlu Kang / Lei Chen /
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 ...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.
History
DepositionOct 28, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Apr 19, 2023Provider: repository / Type: Initial release
Revision 1.1Jul 3, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond / em_admin / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Guanylate cyclase soluble subunit alpha-1
B: Guanylate cyclase soluble subunit beta-1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)148,7823
Polymers148,1662
Non-polymers6161
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Guanylate cyclase soluble subunit alpha-1 / GCS-alpha-1 / Guanylate cyclase soluble subunit alpha-3 / GCS-alpha-3 / Soluble guanylate cyclase ...GCS-alpha-1 / Guanylate cyclase soluble subunit alpha-3 / GCS-alpha-3 / Soluble guanylate cyclase large subunit


Mass: 77566.484 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Details: GenBank: AAH28384.1 / Source: (gene. exp.) Homo sapiens (human) / Gene: GUCY1A1, GUC1A3, GUCSA3, GUCY1A3 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q02108, guanylate cyclase
#2: Protein Guanylate cyclase soluble subunit beta-1 / GCS-beta-1 / Guanylate cyclase soluble subunit beta-3 / GCS-beta-3 / Soluble guanylate cyclase small subunit


Mass: 70599.320 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GUCY1B1, GUC1B3, GUCSB3, GUCY1B3 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q02153, guanylate cyclase
#3: Chemical ChemComp-HEM / PROTOPORPHYRIN IX CONTAINING FE / HEME


Mass: 616.487 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C34H32FeN4O4
Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: human soluble guanylate cyclase / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1500 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K2 QUANTUM (4k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.20.1_4487: / Classification: refinement
EM softwareName: RELION / Version: 3 / Category: 3D reconstruction
CTF correctionType: NONE
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 610756 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0058791
ELECTRON MICROSCOPYf_angle_d0.65611936
ELECTRON MICROSCOPYf_dihedral_angle_d5.9721200
ELECTRON MICROSCOPYf_chiral_restr0.0451386
ELECTRON MICROSCOPYf_plane_restr0.0051516

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