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- EMDB-34663: Cryo-EM structure of endothelin1-bound ETAR-Gq complex -

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Entry
Database: EMDB / ID: EMD-34663
TitleCryo-EM structure of endothelin1-bound ETAR-Gq complex
Map data
Sample
  • Complex: ET1-ETAR-Gq-scFv16 complex
    • Protein or peptide: Endothelin-1 receptor,Oplophorus-luciferin 2-monooxygenase catalytic subunit chimera
    • Protein or peptide: Endothelin-1
    • Protein or peptide: Guanine nucleotide-binding protein G(q) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: scFv16
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
KeywordsET1 / ETAR / Gq / scFv16 / MEMBRANE PROTEIN
Function / homology
Function and homology information


regulation of protein localization to cell leading edge / : / endothelin A receptor binding / Oplophorus-luciferin 2-monooxygenase / Oplophorus-luciferin 2-monooxygenase activity / rhythmic excitation / negative regulation of phospholipase C/protein kinase C signal transduction / endothelin receptor activity / peptide hormone secretion / endothelin B receptor binding ...regulation of protein localization to cell leading edge / : / endothelin A receptor binding / Oplophorus-luciferin 2-monooxygenase / Oplophorus-luciferin 2-monooxygenase activity / rhythmic excitation / negative regulation of phospholipase C/protein kinase C signal transduction / endothelin receptor activity / peptide hormone secretion / endothelin B receptor binding / cellular response to human chorionic gonadotropin stimulus / meiotic cell cycle process involved in oocyte maturation / semaphorin-plexin signaling pathway involved in axon guidance / positive regulation of artery morphogenesis / histamine secretion / neural crest cell fate commitment / vein smooth muscle contraction / glomerular endothelium development / response to prostaglandin F / sympathetic neuron axon guidance / positive regulation of sarcomere organization / noradrenergic neuron differentiation / vascular associated smooth muscle cell development / positive regulation of chemokine-mediated signaling pathway / cardiac chamber formation / leukocyte activation / maternal process involved in parturition / phospholipase D-activating G protein-coupled receptor signaling pathway / rough endoplasmic reticulum lumen / atrial cardiac muscle tissue development / body fluid secretion / pharyngeal arch artery morphogenesis / regulation of D-glucose transmembrane transport / endothelin receptor signaling pathway involved in heart process / positive regulation of odontogenesis / epithelial fluid transport / cardiac neural crest cell migration involved in outflow tract morphogenesis / heparin proteoglycan metabolic process / negative regulation of hormone secretion / response to ozone / Weibel-Palade body / podocyte differentiation / endothelin receptor signaling pathway / podocyte apoptotic process / positive regulation of cation channel activity / left ventricular cardiac muscle tissue morphogenesis / developmental pigmentation / embryonic skeletal system development / positive regulation of cell growth involved in cardiac muscle cell development / sodium ion homeostasis / response to leptin / mesenchymal cell apoptotic process / response to acetylcholine / axonogenesis involved in innervation / glomerular filtration / enteric nervous system development / positive regulation of smooth muscle contraction / renal sodium ion absorption / renal albumin absorption / cellular response to follicle-stimulating hormone stimulus / artery smooth muscle contraction / positive regulation of prostaglandin secretion / protein transmembrane transport / phosphatidylinositol-4,5-bisphosphate phospholipase C activity / cellular response to luteinizing hormone stimulus / regulation of pH / cellular response to mineralocorticoid stimulus / respiratory gaseous exchange by respiratory system / sympathetic nervous system development / vasoconstriction / basal part of cell / positive regulation of renal sodium excretion / cranial skeletal system development / response to salt / norepinephrine metabolic process / positive regulation of hormone secretion / regulation of systemic arterial blood pressure by endothelin / cellular response to toxic substance / dorsal/ventral pattern formation / embryonic heart tube development / axon extension / cellular response to fatty acid / cartilage development / establishment of endothelial barrier / prostaglandin biosynthetic process / positive regulation of neutrophil chemotaxis / positive regulation of urine volume / signal transduction involved in regulation of gene expression / superoxide anion generation / negative regulation of protein metabolic process / cellular response to glucocorticoid stimulus / nitric oxide transport / aorta development / middle ear morphogenesis / branching involved in blood vessel morphogenesis / response to dexamethasone / neuron remodeling / neuromuscular process / positive regulation of cardiac muscle hypertrophy / response to testosterone
Similarity search - Function
Endothelin receptor A / Endothelin receptor family / Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / : / Endothelin family / Endothelin family signature. / Endothelin / Calycin ...Endothelin receptor A / Endothelin receptor family / Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / : / Endothelin family / Endothelin family signature. / Endothelin / Calycin / 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 / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / 7 transmembrane receptor (rhodopsin family) / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 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. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
Endothelin-1 / Endothelin-1 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 / Oplophorus-luciferin 2-monooxygenase catalytic subunit
Similarity search - Component
Biological speciesHomo (humans) / Homo sapiens (human) / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.01 Å
AuthorsYuan Q / Jiang Y / Xu HE / Ji Y / Duan J
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: Nat Commun / Year: 2023
Title: Structural basis of peptide recognition and activation of endothelin receptors.
Authors: Yujie Ji / Jia Duan / Qingning Yuan / Xinheng He / Gong Yang / Shengnan Zhu / Kai Wu / Wen Hu / Tianyu Gao / Xi Cheng / Hualiang Jiang / H Eric Xu / Yi Jiang /
Abstract: Endothelin system comprises three endogenous 21-amino-acid peptide ligands endothelin-1, -2, and -3 (ET-1/2/3), and two G protein-coupled receptor (GPCR) subtypes-endothelin receptor A (ETR) and B ...Endothelin system comprises three endogenous 21-amino-acid peptide ligands endothelin-1, -2, and -3 (ET-1/2/3), and two G protein-coupled receptor (GPCR) subtypes-endothelin receptor A (ETR) and B (ETR). Since ET-1, the first endothelin, was identified in 1988 as one of the most potent endothelial cell-derived vasoconstrictor peptides with long-lasting actions, the endothelin system has attracted extensive attention due to its critical role in vasoregulation and close relevance in cardiovascular-related diseases. Here we present three cryo-electron microscopy structures of ETR and ETR bound to ET-1 and ETR bound to the selective peptide IRL1620. These structures reveal a highly conserved recognition mode of ET-1 and characterize the ligand selectivity by ETRs. They also present several conformation features of the active ETRs, thus revealing a specific activation mechanism. Together, these findings deepen our understanding of endothelin system regulation and offer an opportunity to design selective drugs targeting specific ETR subtypes.
History
DepositionNov 2, 2022-
Header (metadata) releaseMar 22, 2023-
Map releaseMar 22, 2023-
UpdateNov 20, 2024-
Current statusNov 20, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_34663.png

Downloads & links

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Map

FileDownload / File: emd_34663.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
0.82 Å/pix.
x 256 pix.
= 210.944 Å		0.82 Å/pix.
x 256 pix.
= 210.944 Å		0.82 Å/pix.
x 256 pix.
= 210.944 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.824 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.266
Minimum - Maximum-0.051310137 - 1.7767484
Average (Standard dev.)0.002035144 (±0.03167192)
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_34663_half_map_1.map
Projections & Slices
AxesZYX

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Half map: #1

Fileemd_34663_half_map_2.map
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Sample components

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Entire : ET1-ETAR-Gq-scFv16 complex

EntireName: ET1-ETAR-Gq-scFv16 complex
Components
  • Complex: ET1-ETAR-Gq-scFv16 complex
    • Protein or peptide: Endothelin-1 receptor,Oplophorus-luciferin 2-monooxygenase catalytic subunit chimera
    • Protein or peptide: Endothelin-1
    • Protein or peptide: Guanine nucleotide-binding protein G(q) subunit alpha-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: scFv16
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Supramolecule #1: ET1-ETAR-Gq-scFv16 complex

SupramoleculeName: ET1-ETAR-Gq-scFv16 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #6, #5, #1-#4
Source (natural)Organism: Homo (humans)

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Macromolecule #1: Guanine nucleotide-binding protein G(q) subunit alpha-1

MacromoleculeName: Guanine nucleotide-binding protein G(q) subunit alpha-1
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 28.084832 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGSTVSAEDK AAAERSKMID KNLREDGEKA RRTLRLLLLG ADNSGKSTIV KQMRILHGGS GGSGGTSGIF ETKFQVDKVN FHMFDVGGQ RDERRKWIQC FNDVTAIIFV VDSSDYNRLQ EALNDFKSIW NNRWLRTISV ILFLNKQDLL AEKVLAGKSK I EDYFPEFA ...String:
MGSTVSAEDK AAAERSKMID KNLREDGEKA RRTLRLLLLG ADNSGKSTIV KQMRILHGGS GGSGGTSGIF ETKFQVDKVN FHMFDVGGQ RDERRKWIQC FNDVTAIIFV VDSSDYNRLQ EALNDFKSIW NNRWLRTISV ILFLNKQDLL AEKVLAGKSK I EDYFPEFA RYTTPEDATP EPGEDPRVTR AKYFIRKEFV DISTASGDGR HICYPHFTCA VDTENARRIF NDCKDIILQM NL REYNLV

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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: 41.055867 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHGSL LQSELDQLRQ EAEQLKNQIR DARKACADAT LSQITNNIDP VGRIQMRTRR TLRGHLAKIY AMHWGTDSRL LVSASQDGK LIIWDSYTTN KVHAIPLRSS WVMTCAYAPS GNYVACGGLD NICSIYNLKT REGNVRVSRE LAGHTGYLSC C RFLDDNQI ...String:
MHHHHHHGSL LQSELDQLRQ 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 LKIWNGSSGG GGSGGGGSSG VSGWRLFKKI S

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

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Macromolecule #3: scFv16

MacromoleculeName: scFv16 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 30.363043 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFAVQ LVESGGGLVQ PGGSRKLSCS ASGFAFSSFG MHWVRQAPEK GLEWVAYIS SGSGTIYYAD TVKGRFTISR DDPKNTLFLQ MTSLRSEDTA MYYCVRSIYY YGSSPFDFWG QGTTLTVSAG G GGSGGGGS ...String:
MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFAVQ LVESGGGLVQ PGGSRKLSCS ASGFAFSSFG MHWVRQAPEK GLEWVAYIS SGSGTIYYAD TVKGRFTISR DDPKNTLFLQ MTSLRSEDTA MYYCVRSIYY YGSSPFDFWG QGTTLTVSAG G GGSGGGGS GGGGSADIVM TQATSSVPVT PGESVSISCR SSKSLLHSNG NTYLYWFLQR PGQSPQLLIY RMSNLASGVP DR FSGSGSG TAFTLTISRL EAEDVGVYYC MQHLEYPLTF GAGTKLEL

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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: Spodoptera frugiperda (fall armyworm)
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: Endothelin-1

MacromoleculeName: Endothelin-1 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 2.497951 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
CSCSSLMDKE CVYFCHLDII W

UniProtKB: Endothelin-1

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Macromolecule #6: Endothelin-1 receptor,Oplophorus-luciferin 2-monooxygenase cataly...

MacromoleculeName: Endothelin-1 receptor,Oplophorus-luciferin 2-monooxygenase catalytic subunit chimera
type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO / EC number: Oplophorus-luciferin 2-monooxygenase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 69.969906 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MDSKGSSQKG SRLLLLLVVS NLLLCQGVVS DYKDDDDVDM GQPGNGSAFL LAPNGSHAPD HDVTQQRDEE NLYFQGASDN PERYSTNLS NHVDDFTTFR GTELSFLVTT HQPTNLVLPS NGSMHNYCPQ QTKITSAFKY INTVISCTIF IVGMVGNATL L RIIYQNKC ...String:
MDSKGSSQKG SRLLLLLVVS NLLLCQGVVS DYKDDDDVDM GQPGNGSAFL LAPNGSHAPD HDVTQQRDEE NLYFQGASDN PERYSTNLS NHVDDFTTFR GTELSFLVTT HQPTNLVLPS NGSMHNYCPQ QTKITSAFKY INTVISCTIF IVGMVGNATL L RIIYQNKC MRNGPNALIA SLALGDLIYV VIDLPINVFK LLAGRWPFDH NDFGVFLCKL FPFLQKSSVG ITVLNLCALS VD RYRAVAS WSRVQGIGIP LVTAIEIVSI WILSFILAIP EAIGFVMVPF EYRGEQHKTC MLNATSKFME FYQDVKDWWL FGF YFCMPL VCTAIFYTLM TCEMLNRRNG SLRIALSEHL KQRREVAKTV FCLVVIFALC WFPLHLSRIL KKTVYNEMDK NRCE LLSFL LLMDYIGINL ATMNSCINPI ALYFVSKKFK NCFQSCLCCC CYQSKSLMTS VPMNGTSIQV FTLEDFVGDW EQTAA YNLD QVLEQGGVSS LLQNLAVSVT PIQRIVRSGE NALKIDIHVI IPYEGLSADQ MAQIEEVFKV VYPVDDHHFK VILPYG TLV IDGVTPNMLN YFGRPYEGIA VFDGKKITVT GTLWNGNKII DERLITPDGS MLFRVTINS

UniProtKB: Endothelin-1 receptor, Oplophorus-luciferin 2-monooxygenase catalytic subunit

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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 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 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: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.01 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 510197
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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