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Open data
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Basic information
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Title | Cryo-EM structure of ET-1 bound ETBR-DNGI complex | ||||||||||||
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![]() | ENDOTHELIN / RECEPTOR / Gi / COMPLEX / MEMBRANE PROTEIN | ||||||||||||
Function / homology | ![]() enteric smooth muscle cell differentiation / response to endothelin / : / negative regulation of neuron maturation / endothelin A receptor binding / chordate pharynx development / negative regulation of phospholipase C/protein kinase C signal transduction / phospholipase D-activating G protein-coupled receptor signaling pathway / rhythmic excitation / endothelin receptor activity ...enteric smooth muscle cell differentiation / response to endothelin / : / negative regulation of neuron maturation / endothelin A receptor binding / chordate pharynx development / negative regulation of phospholipase C/protein kinase C signal transduction / phospholipase D-activating G protein-coupled receptor signaling pathway / rhythmic excitation / 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 / cellular response to mineralocorticoid stimulus / histamine secretion / neural crest cell fate commitment / regulation of fever generation / vein smooth muscle contraction / glomerular endothelium development / response to prostaglandin F / positive regulation of penile erection / sympathetic neuron axon guidance / positive regulation of sarcomere organization / noradrenergic neuron differentiation / leukocyte activation / positive regulation of chemokine-mediated signaling pathway / body fluid secretion / maternal process involved in parturition / rough endoplasmic reticulum lumen / neuroblast migration / heparin proteoglycan metabolic process / positive regulation of renal sodium excretion / posterior midgut development / pharyngeal arch artery morphogenesis / regulation of D-glucose transmembrane transport / positive regulation of odontogenesis / endothelin receptor signaling pathway involved in heart process / epithelial fluid transport / cardiac neural crest cell migration involved in outflow tract morphogenesis / negative regulation of hormone secretion / response to leptin / Weibel-Palade body / endothelin receptor signaling pathway / response to ozone / podocyte differentiation / : / developmental pigmentation / positive regulation of cell growth involved in cardiac muscle cell development / renal sodium ion absorption / response to sodium phosphate / renal sodium excretion / enteric nervous system development / positive regulation of cation channel activity / axonogenesis involved in innervation / glomerular filtration / protein transmembrane transport / renin secretion into blood stream / artery smooth muscle contraction / cellular response to follicle-stimulating hormone stimulus / cellular response to luteinizing hormone stimulus / renal albumin absorption / melanocyte differentiation / positive regulation of prostaglandin secretion / respiratory gaseous exchange by respiratory system / regulation of pH / positive regulation of smooth muscle contraction / basal part of cell / peripheral nervous system development / response to salt / positive regulation of hormone secretion / type 1 angiotensin receptor binding / cellular response to toxic substance / positive regulation of urine volume / negative regulation of adenylate cyclase activity / regulation of systemic arterial blood pressure by endothelin / vasoconstriction / regulation of epithelial cell proliferation / embryonic heart tube development / dorsal/ventral pattern formation / axon extension / establishment of endothelial barrier / signal transduction involved in regulation of gene expression / neural crest cell migration / positive regulation of neutrophil chemotaxis / prostaglandin biosynthetic process / superoxide anion generation / cellular response to glucocorticoid stimulus / cartilage development / middle ear morphogenesis / negative regulation of protein metabolic process / cGMP-mediated signaling / cellular response to fatty acid / nitric oxide transport / response to pain / branching involved in blood vessel morphogenesis / positive regulation of cardiac muscle hypertrophy Similarity search - Function | ||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.21 Å | ||||||||||||
![]() | Tani K / Maki-Yonekura S / Kanno R / Negami T / Hamaguchi T / Hall M / Mizoguchi A / Humbel BM / Terada T / Yonekura K / Doi T | ||||||||||||
Funding support | ![]()
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![]() | ![]() 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 |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 25.3 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 20.6 KB 20.6 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 6.6 KB | Display | ![]() |
Images | ![]() | 56.6 KB | ||
Filedesc metadata | ![]() | 6.5 KB | ||
Others | ![]() ![]() | 20.6 MB 20.6 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 782.3 KB | Display | ![]() |
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Full document | ![]() | 781.9 KB | Display | |
Data in XML | ![]() | 12.3 KB | Display | |
Data in CIF | ![]() | 17.1 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8xwpMC ![]() 8xwqC ![]() 8zrtC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.19 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_38740_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_38740_half_map_2.map | ||||||||||||
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Density Histograms |
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Sample components
-Entire : ET-1 BOUND ETBR-GI COMPLEX
Entire | Name: ET-1 BOUND ETBR-GI COMPLEX |
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Components |
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-Supramolecule #1: ET-1 BOUND ETBR-GI COMPLEX
Supramolecule | Name: ET-1 BOUND ETBR-GI COMPLEX / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Endothelin receptor type B
Macromolecule | Name: Endothelin receptor type B / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 38.808262 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: 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 |
-Macromolecule #2: Endothelin-1
Macromolecule | Name: Endothelin-1 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 2.497951 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: CSCSSLMDKE CVYFCHLDII W UniProtKB: Endothelin-1 |
-Macromolecule #3: Guanine nucleotide-binding protein G(i) subunit alpha-1
Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 40.414047 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String: MGCTLSAEDK AAVERSKMID RNLREDGEKA AREVKLLLLG AGESGKNTIV KQMKIIHEAG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTTGIVETH FTFKDLHFKM FDVGAQRSER KKWIHCFEGV TAIIFCVALS DYDLVLAEDE EM NRMHASM KLFDSICNNK WFTDTSIILF LNKKDLFEEK IKKSPLTICY PEYAGSNTYE EAAAYIQCQF EDLNKRKDTK EIY THFTCS TDTKNVQFVF DAVTDVIIKN NLKDCGLF UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1 |
-Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 37.671102 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: PGSSGSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT ...String: PGSSGSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT TCALWDIETG QQTTTFTGHT GDVMSLSLAP DTRLFVSGAC DASAKLWDVR EGMCRQTFTG HESDINAICF FP NGNAFAT GSDDATCRLF DLRADQELMT YSHDNIICGI TSVSFSKSGR LLLAGYDDFN CNVWDALKAD RAGVLAGHDN RVS CLGVTD DGMAVATGSW DSFLKIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 7.861143 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #6: SCFV16
Macromolecule | Name: SCFV16 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 29.39893 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MVSAIVLYVL LAAAAHSAFA DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFT ISRDDPKNTL FLQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV M TQATSSVP ...String: MVSAIVLYVL LAAAAHSAFA DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFT ISRDDPKNTL FLQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV M TQATSSVP VTPGESVSIS CRSSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LE AEDVGVY YCMQHLEYPL TFGAGTKLEL KGSLEVLFQG |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 4 mg/mL |
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Buffer | pH: 7.5 |
Vitrification | Cryogen name: ETHANE |
Details | This sample was monodisperse. |
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Electron microscopy
Microscope | JEOL CRYO ARM 300 |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 3.4 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination 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
-Atomic model buiding 1
Refinement | Protocol: RIGID BODY FIT |
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Output model | ![]() PDB-8xwp: |