[English] 日本語
Yorodumi
- PDB-9u3p: Cryo-EM structure of human AC9-Gs complex (soluble domain) -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 9u3p
TitleCryo-EM structure of human AC9-Gs complex (soluble domain)
Components
  • Adenylate cyclase type 9,Protein M2-1
  • Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
KeywordsMEMBRANE PROTEIN / enzyme
Function / homology
Function and homology information


Adenylate cyclase activating pathway / regulation of viral transcription / symbiont-mediated activation of host NF-kappaB cascade / adenylate cyclase / adenylate cyclase activity / cAMP biosynthetic process / PKA activation / viral transcription / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway ...Adenylate cyclase activating pathway / regulation of viral transcription / symbiont-mediated activation of host NF-kappaB cascade / adenylate cyclase / adenylate cyclase activity / cAMP biosynthetic process / PKA activation / viral transcription / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway / regulation of skeletal muscle contraction / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / intracellular transport / D1 dopamine receptor binding / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / cellular response to acidic pH / Adenylate cyclase inhibitory pathway / cellular response to glucagon stimulus / FCGR3A-mediated IL10 synthesis / intracellular glucose homeostasis / bioluminescence / adenylate cyclase activator activity / positive regulation of insulin secretion involved in cellular response to glucose stimulus / trans-Golgi network membrane / transcription antitermination / generation of precursor metabolites and energy / negative regulation of inflammatory response to antigenic stimulus / response to prostaglandin E / bone development / platelet aggregation / virion component / cognition / G-protein beta/gamma-subunit complex binding / positive regulation of insulin secretion / sensory perception of smell / Glucagon signaling in metabolic regulation / Prostacyclin signalling through prostacyclin receptor / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / positive regulation of cold-induced thermogenesis / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G protein activity / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / in utero embryonic development / host cell cytoplasm / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / intracellular signal transduction / cilium / ciliary basal body / G protein-coupled receptor signaling pathway / axon / GTPase activity / dendrite / GTP binding / host cell nucleus / structural molecule activity / signal transduction / RNA binding / extracellular exosome / zinc ion binding / ATP binding / membrane / metal ion binding / plasma membrane / cytoplasm / cytosol
Similarity search - Function
Pneumovirus matrix 2-1 / Pneumovirus matrix protein 2 (M2) / Adenylyl cyclase class-4/guanylyl cyclase, conserved site / Guanylate cyclase signature. / Adenylyl- / guanylyl cyclase, catalytic domain / Adenylate and Guanylate cyclase catalytic domain / Adenylyl cyclase class-3/4/guanylyl cyclase / Guanylate cyclase domain profile. / Zinc finger, CCCH-type / Zinc finger C3H1-type profile. ...Pneumovirus matrix 2-1 / Pneumovirus matrix protein 2 (M2) / Adenylyl cyclase class-4/guanylyl cyclase, conserved site / Guanylate cyclase signature. / Adenylyl- / guanylyl cyclase, catalytic domain / Adenylate and Guanylate cyclase catalytic domain / Adenylyl cyclase class-3/4/guanylyl cyclase / Guanylate cyclase domain profile. / Zinc finger, CCCH-type / Zinc finger C3H1-type profile. / Nucleotide cyclase / G-protein alpha subunit, group S / Green fluorescent protein, GFP / Green fluorescent protein-related / Green fluorescent protein / Green fluorescent protein / G protein alpha subunit, helical insertion / G protein alpha subunit / Guanine nucleotide binding protein (G-protein), alpha subunit / G-protein alpha subunit / G-alpha domain profile. / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE / Protein M2-1 / Adenylate cyclase type 9 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human)
Human respiratory syncytial virus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.65 Å
AuthorsSuzuki, S. / Nomura, R. / Suzuki, H. / Nishikawa, K. / Fujiyoshi, Y.
Funding support Japan, 2items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)20H00451 Japan
Japan Society for the Promotion of Science (JSPS)20K17245 Japan
CitationJournal: J Struct Biol / Year: 2025
Title: Structural insights into human adenylyl cyclase 9 in complex with Gαs by cryo-EM.
Authors: Risa Nomura / Shota Suzuki / Koki Nishikawa / Hiroshi Suzuki / Yoshinori Fujiyoshi /
Abstract: Adenylyl cyclase 9 (AC9) regulates many physiologic functions through the production of cAMP, an important second messenger that regulates downstream effectors. The activation of AC9 is highly ...Adenylyl cyclase 9 (AC9) regulates many physiologic functions through the production of cAMP, an important second messenger that regulates downstream effectors. The activation of AC9 is highly regulated by GPCR signaling. For example, AC9 is activated by the binding of Gαs, which, in turn, is activated by Gs-driven GPCRs. The structure of bovine AC9 (bAC9) was reported in 2019 using single-particle cryo-electron microscopy (cryo-EM). The structure of human AC9 (hAC9), however, has not been reported to date despite its potential benefit for drug development. Here, we analyzed the structures of hAC9 and hAC9 in complex with Gαs (hAC9-Gαs) using single-particle cryo-EM. The soluble domain of AC9-Gαs, the transmembrane (TM) domain of AC9-Gαs, and AC9 alone were analyzed at resolutions of 2.7 Å, 3.4 Å, and 3.2 Å, respectively. The results revealed three key aspects of the activation mechanism of hAC9 and its cAMP-generating function. First, a conformational change of the soluble domain was observed upon Gαs binding, resulting in a widely open catalytic site. Second, we analyzed the exact position of the C-terminus occluding the catalytic site in the hAC9-Gαs complex. Finally, we unexpectedly identified an elongated density suggestive of a single acyl chain in the TM domain. Consistent with recent reports on the allosteric regulation of AC by lipids, this finding suggests that the TM domain could serve as a potential drug target.These structural findings enhance our understanding of the structure and function of AC9 and other ACs and will provide a foundation for future AC-target drug discovery.
History
DepositionMar 18, 2025Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jun 11, 2025Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Mask / Part number: 1 / Data content type: Mask / Provider: repository / Type: Initial release
Revision 1.0Jun 11, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1Dec 24, 2025Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.name / _em_admin.last_update
Revision 1.1Dec 24, 2025Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Database references / Experimental summary / Data content type: EM metadata / EM metadata / EM metadata / Category: citation / citation_author / em_admin
Data content type: EM metadata / EM metadata ...EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata / EM metadata
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.name / _em_admin.last_update

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Adenylate cyclase type 9,Protein M2-1
B: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
hetero molecules


Theoretical massNumber of molelcules
Total (without water)231,4554
Polymers230,8912
Non-polymers5642
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein Adenylate cyclase type 9,Protein M2-1 / ATP pyrophosphate-lyase 9 / Adenylate cyclase type IX / ACIX / Adenylyl cyclase 9 / AC9 / Envelope- ...ATP pyrophosphate-lyase 9 / Adenylate cyclase type IX / ACIX / Adenylyl cyclase 9 / AC9 / Envelope-associated 22 kDa protein / Transcription antitermination factor M2-1


Mass: 181560.188 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human), (gene. exp.) Human respiratory syncytial virus
Gene: ADCY9, KIAA0520, M2-1mGFP / Production host: Homo sapiens (human)
References: UniProt: O60503, UniProt: A0A1S5SHT2, adenylate cyclase
#2: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


Mass: 49331.168 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Spodoptera frugiperda (fall armyworm)
References: UniProt: P63092, Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement
#3: Chemical ChemComp-GSP / 5'-GUANOSINE-DIPHOSPHATE-MONOTHIOPHOSPHATE


Mass: 539.246 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O13P3S / Feature type: SUBJECT OF INVESTIGATION
#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
Has protein modificationN

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: human AC9 in complex with GalphaS / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Molecular weightValue: 150 kDa/nm / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

MicroscopyModel: JEOL CRYO ARM 300
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1500 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

-
Processing

EM softwareName: PHENIX / Version: 1.20.1_4487 / Category: model refinement
CTF correctionType: PHASE FLIPPING ONLY
3D reconstructionResolution: 2.65 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 170990 / Symmetry type: POINT
RefinementHighest resolution: 2.65 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0026787
ELECTRON MICROSCOPYf_angle_d0.449167
ELECTRON MICROSCOPYf_dihedral_angle_d4.678917
ELECTRON MICROSCOPYf_chiral_restr0.041003
ELECTRON MICROSCOPYf_plane_restr0.0031186

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more