[English] 日本語
Yorodumi
- PDB-6lpb: Cryo-EM structure of the human PAC1 receptor coupled to an engine... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 6lpb
TitleCryo-EM structure of the human PAC1 receptor coupled to an engineered heterotrimeric G protein
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • (Pituitary adenylate cyclase-activating ...) x 2
  • nanobody Nb35
KeywordsSIGNALING PROTEIN/HORMONE / CLASS B GPCR / PACAP / PAC1R / SIGNALING PROTEIN-HORMONE COMPLEX
Function / homology
Function and homology information


negative regulation of response to reactive oxygen species / development of primary female sexual characteristics / pituitary adenylate cyclase activating polypeptide activity / vasoactive intestinal polypeptide receptor activity / positive regulation of chemokine (C-C motif) ligand 5 production / positive regulation of growth hormone secretion / positive regulation of cAMP-mediated signaling / NGF-independant TRKA activation / regulation of G protein-coupled receptor signaling pathway / neuropeptide hormone activity ...negative regulation of response to reactive oxygen species / development of primary female sexual characteristics / pituitary adenylate cyclase activating polypeptide activity / vasoactive intestinal polypeptide receptor activity / positive regulation of chemokine (C-C motif) ligand 5 production / positive regulation of growth hormone secretion / positive regulation of cAMP-mediated signaling / NGF-independant TRKA activation / regulation of G protein-coupled receptor signaling pathway / neuropeptide hormone activity / G-protein activation / Activation of the phototransduction cascade / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Ca2+ pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / G protein-coupled peptide receptor activity / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (z) signalling events / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / positive regulation of small GTPase mediated signal transduction / neuropeptide binding / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / insulin secretion / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (i) signalling events / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Glucagon-type ligand receptors / G alpha (12/13) signalling events / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / alkylglycerophosphoethanolamine phosphodiesterase activity / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thrombin signalling through proteinase activated receptors (PARs) / Ca2+ pathway / Extra-nuclear estrogen signaling / G alpha (z) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / positive regulation of inositol phosphate biosynthetic process / positive regulation of calcium ion transport into cytosol / photoreceptor outer segment membrane / peptide hormone receptor binding / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / activation of adenylate cyclase activity / spectrin binding / Vasopressin regulates renal water homeostasis via Aquaporins / peptide hormone binding / adenylate cyclase binding / negative regulation of cell cycle / bicellular tight junction / photoreceptor outer segment / neuropeptide signaling pathway / positive regulation of protein kinase activity / multicellular organismal response to stress / cardiac muscle cell apoptotic process / cAMP-mediated signaling / photoreceptor inner segment / positive regulation of GTPase activity / female pregnancy / adenylate cyclase-activating G protein-coupled receptor signaling pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / caveola / small GTPase binding / Glucagon-type ligand receptors / cellular response to catecholamine stimulus / sensory perception of taste / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / neuron projection development / positive regulation of cold-induced thermogenesis / signaling receptor complex adaptor activity / cell-cell signaling / GTPase binding / response to estradiol / regulation of protein localization / retina development in camera-type eye / signaling receptor activity / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration
Similarity search - Function
GPCR, family 2, pituitary adenylate cyclase activating polypeptide type 1 receptor / : / Transducin (heterotrimeric G protein), gamma chain / G Protein Gi Gamma 2 / Glucagon/GIP/secretin/VIP / Peptide hormone / Glucagon / GIP / secretin / VIP family signature. / Glucagon like hormones / : / G-protein coupled receptors family 2 signature 1. ...GPCR, family 2, pituitary adenylate cyclase activating polypeptide type 1 receptor / : / Transducin (heterotrimeric G protein), gamma chain / G Protein Gi Gamma 2 / Glucagon/GIP/secretin/VIP / Peptide hormone / Glucagon / GIP / secretin / VIP family signature. / Glucagon like hormones / : / G-protein coupled receptors family 2 signature 1. / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / Hormone receptor domain / GPCR family 2, extracellular hormone receptor domain superfamily / G-protein coupled receptors family 2 signature 2. / GPCR, family 2, secretin-like, conserved site / GPCR, family 2, secretin-like / 7 transmembrane receptor (Secretin family) / GPCR, family 2-like / G-protein coupled receptors family 2 profile 2. / YVTN repeat-like/Quinoprotein amine dehydrogenase / 7 Propeller / Methylamine Dehydrogenase; Chain H / G-protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain superfamily / GGL domain / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / Few Secondary Structures / Irregular / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / Mainly Beta
Similarity search - Domain/homology
Pituitary adenylate cyclase-activating polypeptide / Pituitary adenylate cyclase-activating polypeptide type I receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / : / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Similarity search - Component
Biological speciesHomo sapiens (human)
Rattus norvegicus (Norway rat)
unidentified (others)
Bos taurus (cattle)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsKobayashi, K. / Shihoya, W. / Nishizawa, T. / Nureki, O.
CitationJournal: Nat Struct Mol Biol / Year: 2020
Title: Cryo-EM structure of the human PAC1 receptor coupled to an engineered heterotrimeric G protein.
Authors: Kazuhiro Kobayashi / Wataru Shihoya / Tomohiro Nishizawa / Francois Marie Ngako Kadji / Junken Aoki / Asuka Inoue / Osamu Nureki /
Abstract: Pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic neuropeptide hormone. The PACAP receptor PAC1R, which belongs to the class B G-protein-coupled receptors (GPCRs), is a drug ...Pituitary adenylate cyclase-activating polypeptide (PACAP) is a pleiotropic neuropeptide hormone. The PACAP receptor PAC1R, which belongs to the class B G-protein-coupled receptors (GPCRs), is a drug target for mental disorders and dry eye syndrome. Here, we present a cryo-EM structure of human PAC1R bound to PACAP and an engineered G heterotrimer. The structure revealed that transmembrane helix TM1 plays an essential role in PACAP recognition. The extracellular domain (ECD) of PAC1R tilts by ~40° compared with that of the glucagon-like peptide-1 receptor (GLP-1R) and thus does not cover the peptide ligand. A functional analysis demonstrated that the PAC1R ECD functions as an affinity trap and is not required for receptor activation, whereas the GLP-1R ECD plays an indispensable role in receptor activation, illuminating the functional diversity of the ECDs in class B GPCRs. Our structural information will facilitate the design and improvement of better PAC1R agonists for clinical applications.
History
DepositionJan 9, 2020Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 11, 2020Provider: repository / Type: Initial release
Revision 1.1Mar 25, 2020Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation.title
Revision 1.2Oct 9, 2024Group: Data collection / Database references ...Data collection / Database references / Refinement description / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_3d_fitting_list / em_admin / pdbx_entry_details / pdbx_initial_refinement_model / pdbx_modification_feature
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type / _em_admin.last_update

-
Structure visualization

Movie
  • Deposited structure unit
  • Imaged by Jmol
  • Download
  • Simplified surface model + fitted atomic model
  • EMDB-0940
  • Imaged by Jmol
  • Download
  • Superimposition on EM map
  • EMDB-0940
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
P: Pituitary adenylate cyclase-activating polypeptide
R: Pituitary adenylate cyclase-activating polypeptide type I receptor
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
N: nanobody Nb35
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2


Theoretical massNumber of molelcules
Total (without water)141,4956
Polymers141,4956
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
SymmetryPoint symmetry: (Schoenflies symbol: C2 (2 fold cyclic))
Noncrystallographic symmetry (NCS)NCS oper:
IDCodeMatrixVector
1given(1), (1), (1)
2generate(-1), (-1), (1)250.38, 250.38

-
Components

-
Pituitary adenylate cyclase-activating ... , 2 types, 2 molecules PR

#1: Protein/peptide Pituitary adenylate cyclase-activating polypeptide / PACAP


Mass: 4547.336 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P18509
#2: Protein Pituitary adenylate cyclase-activating polypeptide type I receptor / PACAP-R1


Mass: 46675.520 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ADCYAP1R1 / Production host: Homo sapiens (human) / References: UniProt: P41586

-
Guanine nucleotide-binding protein ... , 3 types, 3 molecules BAG

#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 38744.371 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Gnb1 / Cell line (production host): Sf9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P54311
#4: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short


Mass: 28964.734 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Escherichia coli (E. coli) / References: UniProt: P63092*PLUS
#6: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7547.685 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bos taurus (cattle) / Gene: GNG2 / Cell line (production host): Sf9 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63212

-
Antibody , 1 types, 1 molecules N

#5: Antibody nanobody Nb35


Mass: 15015.728 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) unidentified (others) / Production host: Escherichia coli (E. coli)

-
Details

Has protein modificationY

-
Experimental details

-
Experiment

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

-
Sample preparation

ComponentName: PAC1R-Gs trimer / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental 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
Specimen supportGrid material: COPPER/RHODIUM / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

-
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: OTHER
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 64 e/Å2 / Film or detector model: FEI FALCON III (4k x 4k)

-
Processing

SoftwareName: PHENIX / Version: 1.14_3260: / Classification: refinement
EM softwareName: PHENIX / Version: 1.14 / Category: model refinement / Details: phenix.real_space_refine
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C2 (2 fold cyclic)
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 132808 / Symmetry type: POINT
Atomic model buildingProtocol: OTHER
Atomic model buildingPDB-ID: 5VAI

5vai


Accession code: 5VAI / Source name: PDB / Type: experimental model

+
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