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- EMDB-35725: Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex -

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Entry
Database: EMDB / ID: EMD-35725
TitleCryo-EM structure of the latanoprost-bound human PTGFR-Gq complex
Map data
Sample
  • Complex: Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex
    • Protein or peptide: G subunit alpha (q)
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Antibody fragment scFv16
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Prostaglandin F2-alpha receptor
  • Ligand: Z-7-[(1R,2R,3R,5S)-3,5-bis(oxidanyl)-2-[(3R)-3-oxidanyl-5-phenyl-pentyl]cyclopentyl]hept-5-enoic acid
KeywordsGPCR / PTGFR / Latanoprost / Gq / MEMBRANE PROTEIN
Function / homology
Function and homology information


prostaglandin F receptor activity / parturition / Prostanoid ligand receptors / cellular response to prostaglandin D stimulus / : / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor ...prostaglandin F receptor activity / parturition / Prostanoid ligand receptors / cellular response to prostaglandin D stimulus / : / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / sensory perception of taste / GPER1 signaling / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / response to estradiol / retina development in camera-type eye / GTPase binding / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / positive regulation of cytosolic calcium ion concentration / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / response to lipopolysaccharide / Extra-nuclear estrogen signaling / inflammatory response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / positive regulation of cell population proliferation / protein-containing complex binding / positive regulation of gene expression / negative regulation of apoptotic process / signal transduction / extracellular exosome / extracellular region / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Prostaglandin F receptor / Prostanoid receptor / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit ...Prostaglandin F receptor / Prostanoid receptor / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
Prostaglandin F2-alpha 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
Similarity search - Component
Biological speciesHomo sapiens (human) / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.78 Å
AuthorsWu C / Xu Y / Xu HE
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81902085 China
CitationJournal: Nat Commun / Year: 2023
Title: Ligand-induced activation and G protein coupling of prostaglandin F receptor.
Authors: Canrong Wu / Youwei Xu / Qian He / Dianrong Li / Jia Duan / Changyao Li / Chongzhao You / Han Chen / Weiliang Fan / Yi Jiang / H Eric Xu /
Abstract: Prostaglandin F (PGF), an endogenous arachidonic acid metabolite, regulates diverse physiological functions in many tissues and cell types through binding and activation of a G-protein-coupled ...Prostaglandin F (PGF), an endogenous arachidonic acid metabolite, regulates diverse physiological functions in many tissues and cell types through binding and activation of a G-protein-coupled receptor (GPCR), the PGF receptor (FP), which also is the primary therapeutic target for glaucoma and several other diseases. Here, we report cryo-electron microscopy (cryo-EM) structures of the human FP bound to endogenous ligand PGF and anti-glaucoma drugs LTPA and TFPA at global resolutions of 2.67 Å, 2.78 Å, and 3.14 Å. These structures reveal distinct features of FP within the lipid receptor family in terms of ligand binding selectivity, its receptor activation, and G protein coupling mechanisms, including activation in the absence of canonical PIF and ERY motifs and G coupling through direct interactions with receptor transmembrane helix 1 and intracellular loop 1. Together with mutagenesis and functional studies, our structures reveal mechanisms of ligand recognition, receptor activation, and G protein coupling by FP, which could facilitate rational design of FP-targeting drugs.
History
DepositionMar 24, 2023-
Header (metadata) releaseJul 12, 2023-
Map releaseJul 12, 2023-
UpdateAug 30, 2023-
Current statusAug 30, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_35725.png

Downloads & links

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Map

FileDownload / File: emd_35725.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.824 Å
Density
Contour LevelBy AUTHOR: 0.025
Minimum - Maximum-0.073876575 - 0.1226538
Average (Standard dev.)0.00007808622 (±0.004072947)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 210.944 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_35725_half_map_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_35725_half_map_2.map
Projections & Slices
AxesZYX

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Histogram (log scale)

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Sample components

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Entire : Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex

EntireName: Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex
Components
  • Complex: Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex
    • Protein or peptide: G subunit alpha (q)
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Antibody fragment scFv16
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Prostaglandin F2-alpha receptor
  • Ligand: Z-7-[(1R,2R,3R,5S)-3,5-bis(oxidanyl)-2-[(3R)-3-oxidanyl-5-phenyl-pentyl]cyclopentyl]hept-5-enoic acid

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Supramolecule #1: Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex

SupramoleculeName: Cryo-EM structure of the latanoprost-bound human PTGFR-Gq complex
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 160 KDa

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Macromolecule #1: G subunit alpha (q)

MacromoleculeName: G subunit alpha (q) / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 41.724383 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RRTLRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RRTLRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTSGIFETK FQVDKVNFHM FDVGAQRDER RKWIQCFNDV TAIIFVVDSS DYNRLQEALN DF KSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED YFPEFARYTT PEDATPEPGE DPRVTRAKYF IRKEFVDIST ASG DGRHIC YPHFTCSVDT ENARRIFNDC KDIILQMNLR EYNLV

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Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.771367 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MLLQSELDQL RQEAEQLKNQ IRDARKACAD ATLSQITNNI DPVGRIQMRT RRTLRGHLAK IYAMHWGTDS RLLVSASQDG KLIIWDSYT TNKVHAIPLR SSWVMTCAYA PSGNYVACGG LDNICSIYNL KTREGNVRVS RELAGHTGYL SCCRFLDDNQ I VTSSGDTT ...String:
MLLQSELDQL RQEAEQLKNQ IRDARKACAD ATLSQITNNI DPVGRIQMRT RRTLRGHLAK IYAMHWGTDS RLLVSASQDG KLIIWDSYT TNKVHAIPLR SSWVMTCAYA PSGNYVACGG LDNICSIYNL KTREGNVRVS RELAGHTGYL SCCRFLDDNQ I VTSSGDTT CALWDIETGQ QTTTFTGHTG DVMSLSLAPD TRLFVSGACD ASAKLWDVRE GMCRQTFTGH ESDINAICFF PN GNAFATG SDDATCRLFD LRADQELMTY SHDNIICGIT SVSFSKSGRL LLAGYDDFNC NVWDALKADR AGVLAGHDNR VSC LGVTDD GMAVATGSWD SFLKIWN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #3: Antibody fragment scFv16

MacromoleculeName: Antibody fragment scFv16 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 26.277299 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: VQLVESGGGL VQPGGSRKLS CSASGFAFSS FGMHWVRQAP EKGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSED TAMYYCVRSI YYYGSSPFDF WGQGTTLTVS AGGGGSGGGG SGGGGSADIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String:
VQLVESGGGL VQPGGSRKLS CSASGFAFSS FGMHWVRQAP EKGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSED TAMYYCVRSI YYYGSSPFDF WGQGTTLTVS AGGGGSGGGG SGGGGSADIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL

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Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #5: Prostaglandin F2-alpha receptor

MacromoleculeName: Prostaglandin F2-alpha receptor / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.096488 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MSMNNSKQLV SPAAALLSNT TCQTENRLSV FFSVIFMTVG ILSNSLAIAI LMKAYQRFRQ KSKASFLLLA SGLVITDFFG HLINGAIAV FVYASDKEWI RFDQSNVLCS IFGICMVFSG LCPLLLGSVM AIERCIGVTK PIFHSTKITS KHVKMMLSGV C LFAVFIAL ...String:
MSMNNSKQLV SPAAALLSNT TCQTENRLSV FFSVIFMTVG ILSNSLAIAI LMKAYQRFRQ KSKASFLLLA SGLVITDFFG HLINGAIAV FVYASDKEWI RFDQSNVLCS IFGICMVFSG LCPLLLGSVM AIERCIGVTK PIFHSTKITS KHVKMMLSGV C LFAVFIAL LPILGHRDYK IQASRTWCFY NTEDIKDWED RFYLLLFSFL GLLALGVSLL CNAITGITLL RVKFKSQQHR QG RSHHLEM VIQLLAIMCV SCICWSPFLV TMANIGINGN HSLETCETTL FALRMATWNQ ILDPWVYILL RKAVLKNLYK LAS QCCGVH VISLHIWELS SIKNSLKVAA ISESPVAEKS AST

UniProtKB: Prostaglandin F2-alpha receptor

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Macromolecule #6: Z-7-[(1R,2R,3R,5S)-3,5-bis(oxidanyl)-2-[(3R)-3-oxidanyl-5-phenyl-...

MacromoleculeName: Z-7-[(1R,2R,3R,5S)-3,5-bis(oxidanyl)-2-[(3R)-3-oxidanyl-5-phenyl-pentyl]cyclopentyl]hept-5-enoic acid
type: ligand / ID: 6 / Number of copies: 1 / Formula: 7WT
Molecular weightTheoretical: 390.513 Da
Chemical component information

ChemComp-7WT:
Z-7-[(1R,2R,3R,5S)-3,5-bis(oxidanyl)-2-[(3R)-3-oxidanyl-5-phenyl-pentyl]cyclopentyl]hept-5-enoic acid

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 5.0 µm / Nominal defocus min: 1.2 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

8hdp

Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.78 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 437740

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