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- PDB-6p9y: PAC1 GPCR Receptor complex -

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Basic information

Entry
Database: PDB / ID: 6p9y
TitlePAC1 GPCR Receptor complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • (Pituitary adenylate cyclase-activating ...) x 2
  • Nanobody 35
KeywordsMEMBRANE PROTEIN / GPCR
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-coupled peptide receptor activity / positive regulation of small GTPase mediated signal transduction / neuropeptide binding / insulin secretion / positive regulation of inositol phosphate biosynthetic process / positive regulation of calcium ion transport into cytosol / peptide hormone receptor binding / PKA activation in glucagon signalling / peptide hormone binding / adenylate cyclase binding / hair follicle placode formation / negative regulation of cell cycle / developmental growth / neuropeptide signaling pathway / D1 dopamine receptor binding / bicellular tight junction / multicellular organismal response to stress / positive regulation of protein kinase activity / intracellular transport / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / cellular response to glucagon stimulus / cAMP-mediated signaling / adenylate cyclase activator activity / regulation of insulin secretion / positive regulation of GTPase activity / trans-Golgi network membrane / female pregnancy / negative regulation of inflammatory response to antigenic stimulus / bone development / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / caveola / Activation of the phototransduction cascade / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G protein activity / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / platelet aggregation / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / small GTPase binding / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / neuron projection development / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / sensory perception of smell / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / cell-cell signaling / GTPase binding / response to estradiol / positive regulation of cold-induced thermogenesis / regulation of protein localization / retina development in camera-type eye / signaling receptor activity / Ca2+ pathway / 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. / G-protein alpha subunit, group S / YVTN repeat-like/Quinoprotein amine dehydrogenase / 7 Propeller / Methylamine Dehydrogenase; Chain H / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / 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 / P-loop containing nucleoside triphosphate hydrolase / 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(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human)
Lama glama (llama)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.01 Å
AuthorsBelousoff, M.J. / Liang, Y.L. / Sexton, P. / Danev, R.
Funding support Australia, Japan, 9items
OrganizationGrant numberCountry
National Health and Medical Research Council (Australia)1065410 Australia
National Health and Medical Research Council (Australia)1061044 Australia
National Health and Medical Research Council (Australia)1120919 Australia
National Health and Medical Research Council (Australia)1126857 Australia
National Health and Medical Research Council (Australia)1055134 Australia
National Health and Medical Research Council (Australia)1159006 Australia
National Health and Medical Research Council (Australia)1150083 Australia
Japan Society for the Promotion of ScienceKAKENHI #18H06043 Japan
Japan Society for the Promotion of SciencePRESTO #18069571 Japan
CitationJournal: Mol Cell / Year: 2020
Title: Toward a Structural Understanding of Class B GPCR Peptide Binding and Activation.
Authors: Yi-Lynn Liang / Matthew J Belousoff / Peishen Zhao / Cassandra Koole / Madeleine M Fletcher / Tin T Truong / Villy Julita / George Christopoulos / H Eric Xu / Yan Zhang / Maryam Khoshouei / ...Authors: Yi-Lynn Liang / Matthew J Belousoff / Peishen Zhao / Cassandra Koole / Madeleine M Fletcher / Tin T Truong / Villy Julita / George Christopoulos / H Eric Xu / Yan Zhang / Maryam Khoshouei / Arthur Christopoulos / Radostin Danev / Patrick M Sexton / Denise Wootten /
Abstract: Class B G protein-coupled receptors (GPCRs) are important therapeutic targets for major diseases. Here, we present structures of peptide and Gs-bound pituitary adenylate cyclase-activating peptide, ...Class B G protein-coupled receptors (GPCRs) are important therapeutic targets for major diseases. Here, we present structures of peptide and Gs-bound pituitary adenylate cyclase-activating peptide, PAC1 receptor, and corticotropin-releasing factor (CRF), (CRF1) receptor. Together with recently solved structures, these provide coverage of the major class B GPCR subfamilies. Diverse orientations of the extracellular domain to the receptor core in different receptors are at least partially dependent on evolutionary conservation in the structure and nature of peptide interactions. Differences in peptide interactions to the receptor core also influence the interlinked TM2-TM1-TM6/ECL3/TM7 domain, and this is likely important in their diverse signaling. However, common conformational reorganization of ECL2, linked to reorganization of ICL2, modulates G protein contacts. Comparison between receptors reveals ICL2 as a key domain forming dynamic G protein interactions in a receptor- and ligand-specific manner. This work advances our understanding of class B GPCR activation and Gs coupling.
History
DepositionJun 10, 2019Deposition site: RCSB / Processing site: RCSB
Revision 1.0Feb 5, 2020Provider: repository / Type: Initial release
Revision 1.1Feb 12, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2Feb 19, 2020Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Oct 16, 2024Group: Data collection / Database references / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update

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Structure visualization

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nanobody 35
P: Pituitary adenylate cyclase-activating polypeptide
R: Pituitary adenylate cyclase-activating polypeptide type I receptor


Theoretical massNumber of molelcules
Total (without water)167,2216
Polymers167,2216
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area14490 Å2
ΔGint-69 kcal/mol
Surface area42280 Å2

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Components

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

#1: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


Mass: 45700.418 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: Trichoplusia ni (cabbage looper) / References: UniProt: P63092
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 38534.062 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P59768

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

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


Mass: 4545.344 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P18509
#6: Protein Pituitary adenylate cyclase-activating polypeptide type I receptor / PACAP-R1


Mass: 55439.207 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ADCYAP1R1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P41586

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Antibody , 1 types, 1 molecules N

#4: Antibody Nanobody 35


Mass: 15140.742 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia coli (E. coli)

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Details

Has protein modificationY

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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

Component
IDNameTypeEntity IDParent-IDSource
1Complex of active-state Pituitary adenylate cyclase-activating polypeptide type I receptor with heterotrimeric Gs protein.COMPLEXall0RECOMBINANT
2Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, 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, Pituitary adenylate cyclase-activating polypeptideCOMPLEX#1-#3, #51RECOMBINANT
3Nanobody 35COMPLEX#41RECOMBINANT
4Pituitary adenylate cyclase-activating polypeptide type I receptorCOMPLEX#61RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
23Lama glama (llama)9844
34Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Trichoplusia ni (cabbage looper)7111
23Escherichia coli (E. coli)562
34synthetic construct (others)32630
Buffer solutionpH: 7.4
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: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Cs: 2.7 mm
Image recordingAverage exposure time: 3.7 sec. / Electron dose: 1.03 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1

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Processing

SoftwareName: PHENIX / Version: 1.16_3549: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.01 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1120000 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0038171
ELECTRON MICROSCOPYf_angle_d0.47111060
ELECTRON MICROSCOPYf_dihedral_angle_d6.8224811
ELECTRON MICROSCOPYf_chiral_restr0.0411225
ELECTRON MICROSCOPYf_plane_restr0.0031400

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