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- EMDB-29944: Cryo-EM Structure of the Prostaglandin E2 Receptor 4 Coupled to G... -

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Entry
Database: EMDB / ID: EMD-29944
TitleCryo-EM Structure of the Prostaglandin E2 Receptor 4 Coupled to G Protein
Map data
Sample
  • Complex: Prostaglandin E Receptor EP4 Coupled to G Protein
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein subunit gamma
    • Protein or peptide: NB35
    • Protein or peptide: Prostaglandin E2 receptor EP4 subtype
  • Ligand: (2S,5R)-5-[(1E,3S)-4,4-difluoro-3-hydroxy-4-phenylbut-1-en-1-yl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-ol
KeywordsGPCR complex / SIGNALING PROTEIN
Function / homology
Function and homology information


negative regulation of eosinophil extravasation / prostaglandin E receptor activity / negative regulation of integrin activation / Prostanoid ligand receptors / T-helper cell differentiation / regulation of stress fiber assembly / response to nematode / negative regulation of cytokine production / PKA activation in glucagon signalling / regulation of ossification ...negative regulation of eosinophil extravasation / prostaglandin E receptor activity / negative regulation of integrin activation / Prostanoid ligand receptors / T-helper cell differentiation / regulation of stress fiber assembly / response to nematode / negative regulation of cytokine production / PKA activation in glucagon signalling / regulation of ossification / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / response to mechanical stimulus / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / response to prostaglandin E / JNK cascade / ERK1 and ERK2 cascade / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / trans-Golgi network membrane / positive regulation of cytokine production / negative regulation of inflammatory response to antigenic stimulus / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / bone development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / negative regulation of inflammatory response / platelet aggregation / Olfactory Signaling Pathway / cognition / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / cellular response to mechanical stimulus / positive regulation of inflammatory response / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / 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 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of cold-induced thermogenesis / G protein activity / GTPase binding / positive regulation of cytosolic calcium ion concentration / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / response to lipopolysaccharide / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / immune response / G protein-coupled receptor signaling pathway / inflammatory response / lysosomal membrane / GTPase activity / synapse
Similarity search - Function
Prostanoid EP4 receptor / Prostaglandin DP receptor / Prostanoid receptor / G-protein alpha subunit, group S / 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 ...Prostanoid EP4 receptor / Prostaglandin DP receptor / Prostanoid receptor / G-protein alpha subunit, group S / 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 / 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 / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Guanine nucleotide-binding protein subunit gamma / Prostaglandin E2 receptor EP4 subtype / 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)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.3 Å
AuthorsShenming H / Mengyao X / Lei L / Jiangqian M / Sheng C / Jinpeng S
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81825022 China
CitationJournal: Proc Natl Acad Sci U S A / Year: 2023
Title: Single hormone or synthetic agonist induces G/G coupling selectivity of EP receptors via distinct binding modes and propagating paths.
Authors: Shen-Ming Huang / Meng-Yao Xiong / Lei Liu / Jianqiang Mu / Ming-Wei Wang / Ying-Li Jia / Kui Cai / Lu Tie / Chao Zhang / Sheng Cao / Xin Wen / Jia-Le Wang / Sheng-Chao Guo / Yu Li / Chang- ...Authors: Shen-Ming Huang / Meng-Yao Xiong / Lei Liu / Jianqiang Mu / Ming-Wei Wang / Ying-Li Jia / Kui Cai / Lu Tie / Chao Zhang / Sheng Cao / Xin Wen / Jia-Le Wang / Sheng-Chao Guo / Yu Li / Chang-Xiu Qu / Qing-Tao He / Bo-Yang Cai / Chenyang Xue / Shiyi Gan / Yihe Xie / Xin Cong / Zhao Yang / Wei Kong / Shuo Li / Zijian Li / Peng Xiao / Fan Yang / Xiao Yu / You-Fei Guan / Xiaoyan Zhang / Zhongmin Liu / Bao-Xue Yang / Yang Du / Jin-Peng Sun /
Abstract: To accomplish concerted physiological reactions, nature has diversified functions of a single hormone at at least two primary levels: 1) Different receptors recognize the same hormone, and 2) ...To accomplish concerted physiological reactions, nature has diversified functions of a single hormone at at least two primary levels: 1) Different receptors recognize the same hormone, and 2) different cellular effectors couple to the same hormone-receptor pair [R.P. Xiao, , re15 (2001); L. Hein, J. D. Altman, B.K. Kobilka, , 181-184 (1999); Y. Daaka, L. M. Luttrell, R. J. Lefkowitz, , 88-91 (1997)]. Not only these questions lie in the heart of hormone actions and receptor signaling but also dissecting mechanisms underlying these questions could offer therapeutic routes for refractory diseases, such as kidney injury (KI) or X-linked nephrogenic diabetes insipidus (NDI). Here, we identified that G-biased signaling, but not G activation downstream of EP4, showed beneficial effects for both KI and NDI treatments. Notably, by solving Cryo-electron microscope (cryo-EM) structures of EP3-G, EP4-G, and EP4-G in complex with endogenous prostaglandin E (PGE)or two synthetic agonists and comparing with PGE-EP2-G structures, we found that unique primary sequences of prostaglandin E2 receptor (EP) receptors and distinct conformational states of the EP4 ligand pocket govern the G/G transducer coupling selectivity through different structural propagation paths, especially via TM6 and TM7, to generate selective cytoplasmic structural features. In particular, the orientation of the PGE ω-chain and two distinct pockets encompassing agonist L902688 of EP4 were differentiated by their G/G coupling ability. Further, we identified common and distinct features of cytoplasmic side of EP receptors for G/G coupling and provide a structural basis for selective and biased agonist design of EP4 with therapeutic potential.
History
DepositionMar 3, 2023-
Header (metadata) releaseJan 10, 2024-
Map releaseJan 10, 2024-
UpdateNov 6, 2024-
Current statusNov 6, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_29944.png

Downloads & links

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Map

FileDownload / File: emd_29944.map.gz / Format: CCP4 / Size: 28.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.7 Å/pix.
x 196 pix.
= 333.2 Å		1.7 Å/pix.
x 196 pix.
= 333.2 Å		1.7 Å/pix.
x 196 pix.
= 333.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.7 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.18
Minimum - Maximum-0.01245254 - 1.6131332
Average (Standard dev.)0.00053192425 (±0.015630143)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions196196196
Spacing196196196
CellA=B=C: 333.2 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_29944_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_29944_half_map_2.map
Projections & Slices
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Histogram (log scale)

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Sample components

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Entire : Prostaglandin E Receptor EP4 Coupled to G Protein

EntireName: Prostaglandin E Receptor EP4 Coupled to G Protein
Components
  • Complex: Prostaglandin E Receptor EP4 Coupled to G Protein
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein subunit gamma
    • Protein or peptide: NB35
    • Protein or peptide: Prostaglandin E2 receptor EP4 subtype
  • Ligand: (2S,5R)-5-[(1E,3S)-4,4-difluoro-3-hydroxy-4-phenylbut-1-en-1-yl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-ol

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Supramolecule #1: Prostaglandin E Receptor EP4 Coupled to G Protein

SupramoleculeName: Prostaglandin E Receptor EP4 Coupled to G Protein / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

MacromoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 45.727441 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...String:
MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQD DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL

UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

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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: 38.458012 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: LEVLFQGPGS SGSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI ...String:
LEVLFQGPGS SGSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI VTSSGDTTCA LWDIETGQQT TTFTGHTGDV MSLSLAPDTR LFVSGACDAS AKLWDVREGM CRQTFTGHES DI NAICFFP NGNAFATGSD DATCRLFDLR ADQELMTYSH DNIICGITSV SFSKSGRLLL AGYDDFNCNV WDALKADRAG VLA GHDNRV SCLGVTDDGM AVATGSWDSF LKIWN

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

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Macromolecule #3: Guanine nucleotide-binding protein subunit gamma

MacromoleculeName: Guanine nucleotide-binding protein subunit gamma / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 12.104898 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString:
MWRELPLGLG ELHKDHQASR KLEPELWSVS ENPPSTSMAS NNTASIAQAR KLVEQLKMEA NIDRIKVSKA AADLMAYCEA HAKEDPLLT PVPASENPFR EKKFFCAIL

UniProtKB: Guanine nucleotide-binding protein subunit gamma

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Macromolecule #4: NB35

MacromoleculeName: NB35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 13.885439 KDa
Recombinant expressionOrganism: unidentified (others)
SequenceString:
QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSS

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Macromolecule #5: Prostaglandin E2 receptor EP4 subtype

MacromoleculeName: Prostaglandin E2 receptor EP4 subtype / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 53.173336 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MSTPGVNSSA SLSPDRLNSP VTIPAVMFIF GVVGNLVAIV VLCKSRKEQK ETTFYTLVCG LAVTDLLGTL LVSPVTIATY MKGQWPGGQ PLCEYSTFIL LFFSLSGLSI ICAMSVERYL AINHAYFYSH YVDKRLAGLT LFAVYASNVL FCALPNMGLG S SRLQYPDT ...String:
MSTPGVNSSA SLSPDRLNSP VTIPAVMFIF GVVGNLVAIV VLCKSRKEQK ETTFYTLVCG LAVTDLLGTL LVSPVTIATY MKGQWPGGQ PLCEYSTFIL LFFSLSGLSI ICAMSVERYL AINHAYFYSH YVDKRLAGLT LFAVYASNVL FCALPNMGLG S SRLQYPDT WCFIDWTTNV TAHAAYSYMY AGFSSFLILA TVLCNVLVCG ALLRMHRQFM RRTSLGTEQH HAAAAASVAS RG HPAASPA LPRLSDFRRR RSFRRIAGAE IQMVILLIAT SLVVLICSIP LVVRVFVNQL YQPSLEREVS KNPDLQAIRI ASV NPILDP WIYILLRKTV LSKAIEKIKC LFCRIGGSRR ERSGQHCSDS QRTSSAMSGH SRSFISRELK EISSTSQTLL PDLS LPDLS ENGLGGRNLL PGVPGMGLAQ EDTTSLRTLR ISETSDSSQG QDSESVLLVD EAGGSGRAGP APKGSSLQVT FPSET LNLS EKCI

UniProtKB: Prostaglandin E2 receptor EP4 subtype

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Macromolecule #6: (2S,5R)-5-[(1E,3S)-4,4-difluoro-3-hydroxy-4-phenylbut-1-en-1-yl]-...

MacromoleculeName: (2S,5R)-5-[(1E,3S)-4,4-difluoro-3-hydroxy-4-phenylbut-1-en-1-yl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-ol
type: ligand / ID: 6 / Number of copies: 1 / Formula: YZV
Molecular weightTheoretical: 421.484 Da
Chemical component information

ChemComp-YZV:
(2S,5R)-5-[(1E,3S)-4,4-difluoro-3-hydroxy-4-phenylbut-1-en-1-yl]-1-[6-(1H-tetrazol-5-yl)hexyl]pyrrolidin-2-ol

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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: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 25.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: OTHER
Electron opticsIllumination mode: OTHER / Imaging mode: OTHER / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
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:

7cx2

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 279955
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: PROJECTION MATCHING

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