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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 / positive regulation of prostaglandin-endoperoxide synthase activity / aldosterone metabolic process / negative regulation of neuron maturation / endothelin A receptor binding / protein kinase C deactivation / chordate pharynx development / phospholipase D-activating G protein-coupled receptor signaling pathway / rhythmic excitation ...enteric smooth muscle cell differentiation / response to endothelin / positive regulation of prostaglandin-endoperoxide synthase activity / aldosterone metabolic process / negative regulation of neuron maturation / endothelin A receptor binding / protein kinase C deactivation / chordate pharynx development / phospholipase D-activating G protein-coupled receptor signaling pathway / rhythmic excitation / 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 / positive regulation of artery morphogenesis / semaphorin-plexin signaling pathway involved in axon guidance / body fluid 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 sarcomere organization / noradrenergic neuron differentiation / positive regulation of renal sodium excretion / histamine secretion / leukocyte activation / maternal process involved in parturition / positive regulation of chemokine-mediated signaling pathway / positive regulation of penile erection / rough endoplasmic reticulum lumen / neuroblast migration / heparin metabolic process / posterior midgut development / developmental pigmentation / pharyngeal arch artery morphogenesis / regulation of D-glucose transmembrane transport / positive regulation of odontogenesis / epithelial fluid transport / endothelin receptor signaling pathway involved in heart process / negative regulation of hormone secretion / cardiac neural crest cell migration involved in outflow tract morphogenesis / Weibel-Palade body / response to leptin / endothelin receptor signaling pathway / response to ozone / podocyte differentiation / positive regulation of cell growth involved in cardiac muscle cell development / renal sodium ion absorption / artery smooth muscle contraction / response to sodium phosphate / glomerular filtration / renal sodium excretion / protein transmembrane transport / enteric nervous system development / axonogenesis involved in innervation / positive regulation of cation channel activity / renin secretion into blood stream / cellular response to follicle-stimulating hormone stimulus / cellular response to luteinizing hormone stimulus / melanocyte differentiation / : / regulation of pH / positive regulation of prostaglandin secretion / renal albumin absorption / regulation of epithelial cell proliferation / respiratory gaseous exchange by respiratory system / basal part of cell / cellular response to mineralocorticoid stimulus / peripheral nervous system development / positive regulation of smooth muscle contraction / response to salt / positive regulation of urine volume / positive regulation of hormone secretion / negative regulation of adenylate cyclase activity / regulation of systemic arterial blood pressure by endothelin / vasoconstriction / negative regulation of blood coagulation / type 1 angiotensin receptor binding / embryonic heart tube development / : / dorsal/ventral pattern formation / axon extension / establishment of endothelial barrier / superoxide anion generation / positive regulation of neutrophil chemotaxis / positive regulation of signaling receptor activity / cartilage development / middle ear morphogenesis / cellular response to glucocorticoid stimulus / negative regulation of protein metabolic process / neural crest cell migration / cGMP-mediated signaling / prostaglandin biosynthetic process / cellular response to fatty acid / nitric oxide transport / positive regulation of heart rate / branching involved in blood vessel morphogenesis
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-
UpdateOct 30, 2024-
Current statusOct 30, 2024Processing 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
Brightness
Contrast
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

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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