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- EMDB-35815: ETB-Gi complex bound to Endotheline-1, focused on receptor -

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Basic information

Entry
Database: EMDB / ID: EMD-35815
TitleETB-Gi complex bound to Endotheline-1, focused on receptor
Map data
Sample
  • Complex: Complex of Endothelin-1, ETB, and Gi
    • Protein or peptide: Endothelin type B receptor
    • Protein or peptide: Endothelin-1Endothelin 1
KeywordsClass A GPCR / Endothelin / Gi / Vasoactive peptide / PEPTIDE BINDING PROTEIN
Function / homology
Function and homology information


positive regulation of prostaglandin-endoperoxide synthase activity / endothelin A receptor binding / protein kinase C deactivation / cellular response to human chorionic gonadotropin stimulus / meiotic cell cycle process involved in oocyte maturation / phospholipase D-activating G protein-coupled receptor signaling pathway / endothelin B receptor binding / rhythmic excitation / peptide hormone secretion / neural crest cell fate commitment ...positive regulation of prostaglandin-endoperoxide synthase activity / endothelin A receptor binding / protein kinase C deactivation / cellular response to human chorionic gonadotropin stimulus / meiotic cell cycle process involved in oocyte maturation / phospholipase D-activating G protein-coupled receptor signaling pathway / endothelin B receptor binding / rhythmic excitation / peptide hormone secretion / neural crest cell fate commitment / sympathetic neuron axon guidance / body fluid secretion / glomerular endothelium development / vein smooth muscle contraction / noradrenergic neuron differentiation / response to prostaglandin F / positive regulation of renal sodium excretion / leukocyte activation / positive regulation of sarcomere organization / histamine secretion / rough endoplasmic reticulum lumen / positive regulation of chemokine-mediated signaling pathway / positive regulation of odontogenesis / maternal process involved in parturition / regulation of glucose transmembrane transport / pharyngeal arch artery morphogenesis / endothelin receptor signaling pathway involved in heart process / semaphorin-plexin signaling pathway involved in axon guidance / epithelial fluid transport / podocyte differentiation / cardiac neural crest cell migration involved in outflow tract morphogenesis / negative regulation of hormone secretion / response to leptin / endothelin receptor signaling pathway / response to ozone / Weibel-Palade body / renal sodium ion absorption / positive regulation of cell growth involved in cardiac muscle cell development / artery smooth muscle contraction / glomerular filtration / axonogenesis involved in innervation / positive regulation of cation channel activity / positive regulation of prostaglandin secretion / cellular response to follicle-stimulating hormone stimulus / cellular response to luteinizing hormone stimulus / regulation of pH / negative regulation of nitric-oxide synthase biosynthetic process / cellular response to mineralocorticoid stimulus / positive regulation of urine volume / negative regulation of blood coagulation / respiratory gaseous exchange by respiratory system / basal part of cell / positive regulation of smooth muscle contraction / positive regulation of hormone secretion / regulation of systemic arterial blood pressure by endothelin / vasoconstriction / protein kinase C-activating G protein-coupled receptor signaling pathway / embryonic heart tube development / superoxide anion generation / axon extension / dorsal/ventral pattern formation / negative regulation of protein metabolic process / positive regulation of neutrophil chemotaxis / middle ear morphogenesis / positive regulation of signaling receptor activity / cellular response to glucocorticoid stimulus / cartilage development / prostaglandin biosynthetic process / nitric oxide transport / cellular response to fatty acid / positive regulation of heart rate / cellular response to organic substance / branching involved in blood vessel morphogenesis / response to testosterone / response to dexamethasone / positive regulation of cardiac muscle hypertrophy / negative regulation of smooth muscle cell apoptotic process / membrane depolarization / thyroid gland development / regulation of vasoconstriction / positive regulation of cell size / canonical Wnt signaling pathway / response to amino acid / cellular response to interleukin-1 / positive regulation of calcium-mediated signaling / protein kinase A signaling / positive regulation of JUN kinase activity / transport vesicle / ERK1 and ERK2 cascade / positive regulation of vascular associated smooth muscle cell proliferation / response to amphetamine / cellular response to transforming growth factor beta stimulus / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / response to muscle stretch / cellular response to calcium ion / mitochondrion organization / Peptide ligand-binding receptors / positive regulation of mitotic nuclear division / positive regulation of endothelial cell migration / response to activity
Similarity search - Function
Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / Endothelin family / Endothelin family signature. / Endothelin
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.13 Å
AuthorsSano FK / Akasaka H / Shihoya W / Nureki O
Funding support Japan, 1 items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)21H05037 Japan
CitationJournal: Elife / Year: 2023
Title: Cryo-EM structure of the endothelin-1-ET-G complex.
Authors: Fumiya K Sano / Hiroaki Akasaka / Wataru Shihoya / Osamu Nureki /
Abstract: The endothelin ET receptor is a promiscuous G-protein coupled receptor that is activated by vasoactive peptide endothelins. ET signaling induces reactive astrocytes in the brain and vasorelaxation in ...The endothelin ET receptor is a promiscuous G-protein coupled receptor that is activated by vasoactive peptide endothelins. ET signaling induces reactive astrocytes in the brain and vasorelaxation in vascular smooth muscle. Consequently, ET agonists are expected to be drugs for neuroprotection and improved anti-tumor drug delivery. Here, we report the cryo-electron microscopy structure of the endothelin-1-ET-G complex at 2.8 Å resolution, with complex assembly stabilized by a newly established method. Comparisons with the inactive ET receptor structures revealed how endothelin-1 activates the ET receptor. The NPxxY motif, essential for G-protein activation, is not conserved in ET, resulting in a unique structural change upon G-protein activation. Compared with other GPCR-G-protein complexes, ET binds G in the shallowest position, further expanding the diversity of G-protein binding modes. This structural information will facilitate the elucidation of G-protein activation and the rational design of ET agonists.
History
DepositionApr 4, 2023-
Header (metadata) releaseAug 16, 2023-
Map releaseAug 16, 2023-
UpdateDec 6, 2023-
Current statusDec 6, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_35815.png

Downloads & links

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Map

FileDownload / File: emd_35815.map.gz / Format: CCP4 / Size: 1.8 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.162 Å
Density
Contour LevelBy AUTHOR: 1.12
Minimum - Maximum-6.088579 - 6.920754
Average (Standard dev.)-0.041043565 (±0.43348587)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin636137
Dimensions688086
Spacing806886
CellA: 92.95999 Å / B: 79.016 Å / C: 99.93199 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_35815_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_35815_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_35815_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Complex of Endothelin-1, ETB, and Gi

EntireName: Complex of Endothelin-1, ETB, and Gi
Components
  • Complex: Complex of Endothelin-1, ETB, and Gi
    • Protein or peptide: Endothelin type B receptor
    • Protein or peptide: Endothelin-1Endothelin 1

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Supramolecule #1: Complex of Endothelin-1, ETB, and Gi

SupramoleculeName: Complex of Endothelin-1, ETB, and Gi / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Endothelin type B receptor

MacromoleculeName: Endothelin type B receptor / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 67.492219 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: EERGFPPDRA TPLLQTAEIM TPPTKTLWPK GDYKDDDDKL APAEVPKGDR TAGSPPRTIS PPPCQGPIEI KETFKYINTV VSCLVFVLG IIGNSTLLRI IYKNKCMRNG PNILIASLAL GDLLHIVIDI PINVYKLLAE DWPFGAEMCK LVPFIQKASV G ITVLSLCA ...String:
EERGFPPDRA TPLLQTAEIM TPPTKTLWPK GDYKDDDDKL APAEVPKGDR TAGSPPRTIS PPPCQGPIEI KETFKYINTV VSCLVFVLG IIGNSTLLRI IYKNKCMRNG PNILIASLAL GDLLHIVIDI PINVYKLLAE DWPFGAEMCK LVPFIQKASV G ITVLSLCA LSIDRYRAVA SWSRIKGIGV PKWTAVEIVL IWVVSVVLAV PEAIGFDIIT MDYKGSYLRI CLLHPVQKTA FM QFYKTAK DWWLFSFYFC LPLAITAFFY TLMTCEMLRK KSGMQIALND HLKQRREVAK TVFCLVLVFA LCWLPLHLSR ILK LTLYNQ NDPNRCELLS FLLVLDYIGI NMASLNSCIN PIALYLVSKR FKNCFKSCLC CWCQSFEEKQ SLEEKQSCLK FKAN DHGYD NFRSSNKYSS SGSGGGGSGG SSSGGVFTLE DFVGDWEQTA AYNLDQVLEQ GGVSSLLQNL AVSVTPIQRI VRSGE NALK IDIHVIIPYE GLSADQMAQI EEVFKVVYPV DDHHFKVILP YGTLVIDGVT PNMLNYFGRP YEGIAVFDGK KITVTG TLW NGNKIIDERL ITPDGSMLFR VTINSGGSGG GGSGGSSSGG LEVLFQ

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Macromolecule #2: Endothelin-1

MacromoleculeName: Endothelin-1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 2.497951 KDa
SequenceString:
CSCSSLMDKE CVYFCHLDII W

UniProtKB: Endothelin-1

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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

Concentration8 mg/mL
BufferpH: 8
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300
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 / Cs: 2.7 mm / Nominal defocus max: 1.6 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 105000
Sample stageCooling holder cryogen: NITROGEN
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Number real images: 10408 / Average exposure time: 2.3 sec. / 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: NONE
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.13 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 260085
FSC plot (resolution estimation)

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