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- EMDB-60404: Cryo-EM structure focused on the receptor of the ET-1 bound ETBR-... -

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Basic information

Entry
Database: EMDB / ID: EMD-60404
TitleCryo-EM structure focused on the receptor of the ET-1 bound ETBR-DNGI complex
Map datafull map
Sample
  • Complex: ET-1 BOUND ETBR COMPLEX
    • Protein or peptide: Endothelin receptor type B
    • Protein or peptide: Endothelin-1
KeywordsENDOTHELIN / RECEPTOR / Gi / COMPLEX / MEMBRANE PROTEIN
Function / homology
Function and homology information


enteric smooth muscle cell differentiation / response to endothelin / : / negative regulation of neuron maturation / endothelin A receptor binding / chordate pharynx development / rhythmic excitation / neuroblast migration / negative regulation of phospholipase C/protein kinase C signal transduction / endothelin receptor activity ...enteric smooth muscle cell differentiation / response to endothelin / : / negative regulation of neuron maturation / endothelin A receptor binding / chordate pharynx development / rhythmic excitation / neuroblast migration / negative regulation of phospholipase C/protein kinase C signal transduction / endothelin receptor activity / peptide hormone secretion / endothelin B receptor binding / aldosterone metabolic process / 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 / regulation of fever generation / vein smooth muscle contraction / glomerular endothelium development / response to prostaglandin F / sympathetic neuron axon guidance / positive regulation of penile erection / positive regulation of sarcomere organization / noradrenergic neuron differentiation / phospholipase D-activating G protein-coupled receptor signaling pathway / maternal process involved in parturition / positive regulation of chemokine-mediated signaling pathway / body fluid secretion / leukocyte activation / rough endoplasmic reticulum lumen / heparin proteoglycan metabolic process / posterior midgut development / positive regulation of renal sodium excretion / 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 / negative regulation of hormone secretion / response to ozone / Weibel-Palade body / endothelin receptor signaling pathway / podocyte differentiation / positive regulation of cation channel activity / developmental pigmentation / positive regulation of cell growth involved in cardiac muscle cell development / renal sodium excretion / response to leptin / response to sodium phosphate / enteric nervous system development / glomerular filtration / axonogenesis involved in innervation / protein transmembrane transport / renal sodium ion absorption / positive regulation of smooth muscle contraction / renin secretion into blood stream / artery smooth muscle contraction / renal albumin absorption / cellular response to follicle-stimulating hormone stimulus / positive regulation of prostaglandin secretion / respiratory gaseous exchange by respiratory system / cellular response to luteinizing hormone stimulus / regulation of pH / cellular response to mineralocorticoid stimulus / vasoconstriction / basal part of cell / melanocyte differentiation / peripheral nervous system development / type 1 angiotensin receptor binding / response to salt / negative regulation of adenylate cyclase activity / positive regulation of urine volume / positive regulation of hormone secretion / regulation of systemic arterial blood pressure by endothelin / regulation of epithelial cell proliferation / cellular response to toxic substance / embryonic heart tube development / dorsal/ventral pattern formation / cellular response to fatty acid / establishment of endothelial barrier / axon extension / cartilage development / positive regulation of neutrophil chemotaxis / prostaglandin biosynthetic process / neural crest cell migration / signal transduction involved in regulation of gene expression / superoxide anion generation / negative regulation of protein metabolic process / : / middle ear morphogenesis / nitric oxide transport / cellular response to glucocorticoid stimulus / response to pain / branching involved in blood vessel morphogenesis / response to dexamethasone / positive regulation of cardiac muscle hypertrophy
Similarity search - Function
Endothelin receptor B / Endothelin receptor family / Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / : / Endothelin family / Endothelin family signature. / Endothelin / Serpentine type 7TM GPCR chemoreceptor Srsx ...Endothelin receptor B / Endothelin receptor family / Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / : / Endothelin family / Endothelin family signature. / Endothelin / Serpentine type 7TM GPCR chemoreceptor Srsx / 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)
Similarity search - Domain/homology
Endothelin-1 / Endothelin receptor type B
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.62 Å
AuthorsTani K / Maki-Yonekura S / Kanno R / Negami T / Hamaguchi T / Hall M / Mizoguchi A / Humbel BM / Terada T / Yonekura K / Doi T
Funding support Japan, 3 items
OrganizationGrant numberCountry
Japan Agency for Medical Research and Development (AMED)JP21am0101118 Japan
Japan Agency for Medical Research and Development (AMED)JP23ama121004 Japan
Japan Society for the Promotion of Science (JSPS)20H03210 Japan
CitationJournal: Commun Biol / Year: 2024
Title: Structure of endothelin ET receptor-G complex in a conformation stabilized by unique NPxxL motif.
Authors: Kazutoshi Tani / Saori Maki-Yonekura / Ryo Kanno / Tatsuki Negami / Tasuku Hamaguchi / Malgorzata Hall / Akira Mizoguchi / Bruno M Humbel / Tohru Terada / Koji Yonekura / Tomoko Doi /
Abstract: Endothelin type B receptor (ETR) plays a crucial role in regulating blood pressure and humoral homeostasis, making it an important therapeutic target for related diseases. ETR activation by the ...Endothelin type B receptor (ETR) plays a crucial role in regulating blood pressure and humoral homeostasis, making it an important therapeutic target for related diseases. ETR activation by the endogenous peptide hormones endothelin (ET)-1-3 stimulates several signaling pathways, including G, G, G, G, and β-arrestin. Although the conserved NPxxY motif in transmembrane helix 7 (TM7) is important during GPCR activation, ETR possesses the lesser known NPxxL motif. In this study, we present the cryo-EM structure of the ETR-G complex, complemented by MD simulations and functional studies. These investigations reveal an unusual movement of TM7 to the intracellular side during ETR activation and the essential roles of the diverse NPxxL motif in stabilizing the active conformation of ETR and organizing the assembly of the binding pocket for the α5 helix of G protein. These findings enhance our understanding of the interactions between GPCRs and G proteins, thereby advancing the development of therapeutic strategies.
History
DepositionJun 5, 2024-
Header (metadata) releaseOct 2, 2024-
Map releaseOct 2, 2024-
UpdateJun 25, 2025-
Current statusJun 25, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_60404.png

Downloads & links

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Map

FileDownload / File: emd_60404.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationfull map
Projections & slices

Image control

Size
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Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.19 Å/pix.
x 192 pix.
= 228.48 Å		1.19 Å/pix.
x 192 pix.
= 228.48 Å		1.19 Å/pix.
x 192 pix.
= 228.48 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.19 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.03
Minimum - Maximum-0.16544221 - 0.21601684
Average (Standard dev.)-0.00010962154 (±0.0041943165)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions192192192
Spacing192192192
CellA=B=C: 228.48001 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: half-odd map

Fileemd_60404_half_map_1.map
Annotationhalf-odd map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: half-even map

Fileemd_60404_half_map_2.map
Annotationhalf-even map
Projections & Slices
AxesZYX

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Histogram

Histogram (log scale)

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Sample components

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Entire : ET-1 BOUND ETBR COMPLEX

EntireName: ET-1 BOUND ETBR COMPLEX
Components
  • Complex: ET-1 BOUND ETBR COMPLEX
    • Protein or peptide: Endothelin receptor type B
    • Protein or peptide: Endothelin-1

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Supramolecule #1: ET-1 BOUND ETBR COMPLEX

SupramoleculeName: ET-1 BOUND ETBR COMPLEX / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Endothelin receptor type B

MacromoleculeName: Endothelin receptor type B / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.808262 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: PGGGLAPAEV PKGDRTAGSP PRTISPPPCQ GPIEIKETFK YINTVVSCLV FVLGIIGNST LLYIIYKNKC MRNGPNILIA SLALGDLLH IVIDIPINVY KLLAEDWPFG AEMCKLVPFI QKASVGITVL SLCALSIDRY RAVASWSRIK GIGVPKWTAV E IVLIWVVS ...String:
PGGGLAPAEV PKGDRTAGSP PRTISPPPCQ GPIEIKETFK YINTVVSCLV FVLGIIGNST LLYIIYKNKC MRNGPNILIA SLALGDLLH IVIDIPINVY KLLAEDWPFG AEMCKLVPFI QKASVGITVL SLCALSIDRY RAVASWSRIK GIGVPKWTAV E IVLIWVVS VVLAVPEAIG FDIITMDYKG SYLRICLLHP VQKTAFMQFY KTAKDWWLFS FYFCLPLAIT AFFYTLMTCE ML RKKSGMQ IALNDHLKQR REVAKTVFCL VLVFALCWLP LHLSRILKLT LYNQNDPNRC ELLSFLLVLD YIGINMASLN SCI NPIALY LVSKRFKNAF KSALCCWAQS

UniProtKB: Endothelin receptor type B

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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
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
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

Concentration4 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE
DetailsThis sample was monodisperse.

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Electron microscopy

MicroscopeJEOL CRYO ARM 300
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 3.4 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.5 µm / Nominal defocus min: 0.5 µm

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Image processing

CTF correctionType: PHASE FLIPPING ONLY
Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.62 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 401671
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementProtocol: RIGID BODY FIT
Output model

PDB-8zrt:
Cryo-EM structure focused on the receptor of the ET-1 bound ETBR-DNGI complex

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