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- EMDB-38330: ETB-eGt complex bound to endothelin-1 -

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Basic information

Entry
Database: EMDB / ID: EMD-38330
TitleETB-eGt complex bound to endothelin-1
Map data
Sample
  • Complex: Complex of Endothelin-1, ETB, eGt trimer and Nb35*
    • Protein or peptide: Endothelin receptor type B
    • Protein or peptide: Endothelin-1Endothelin 1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Camelid antibody VHH fragment
  • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2,eGt-alpha
KeywordsSIGNALING PROTEIN / PEPTIDE BINDING PROTEIN-IMMUNE SYSTEM complex
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 / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / cellular response to glucocorticoid stimulus / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / G alpha (12/13) signalling events / G beta:gamma signalling through BTK / cartilage development / ADP signalling through P2Y purinoceptor 12 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thrombin signalling through proteinase activated receptors (PARs) / Ca2+ pathway / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / prostaglandin biosynthetic process / G alpha (q) signalling events / nitric oxide transport / cellular response to fatty acid / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / positive regulation of heart rate / cellular response to organic substance / branching involved in blood vessel morphogenesis / Vasopressin regulates renal water homeostasis via Aquaporins / response to testosterone / response to dexamethasone
Similarity search - Function
Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / Endothelin family / Endothelin family signature. / Endothelin / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily ...Endothelin-like toxin / Endothelin-like toxin, conserved site / Endothelin / Endothelin family / Endothelin family signature. / Endothelin / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs
Similarity search - Domain/homology
Endothelin-1 / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Similarity search - Component
Biological speciesHomo sapiens (human) / Bos taurus (cattle) / Rattus rattus (black rat) / Lama glama (llama)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsOshima HS / Sano FK / Akasaka H / Iwama A / Shihoya W / Nureki O
Funding support Japan, 1 items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)21H05037 Japan
CitationJournal: Biochem Biophys Res Commun / Year: 2024
Title: Optimizing cryo-EM structural analysis of G-coupling receptors via engineered G and Nb35 application.
Authors: Hidetaka S Oshima / Fumiya K Sano / Hiroaki Akasaka / Aika Iwama / Wataru Shihoya / Osamu Nureki /
Abstract: Cryo-EM single particle analysis has recently facilitated the high-resolution structural determination of numerous GPCR-G complexes. Diverse methodologies have been devised with this trend, and in ...Cryo-EM single particle analysis has recently facilitated the high-resolution structural determination of numerous GPCR-G complexes. Diverse methodologies have been devised with this trend, and in the case of GPCR-G complexes, scFv16, an antibody that recognizes the intricate interface of the complex, has been mainly implemented to stabilize the complex. However, owing to their flexibility and heterogeneity, structural determinations of GPCR-G complexes remain both challenging and resource-intensive. By employing eGα, which exhibits binding affinity to modified nanobody Nb35, the cryo-EM structure of Rhodopsin-eGα complex was previously reported. Using this modified G protein, we determined the structure of the ET-eG complex bound to the modified Nb35. The determined structure of ET receptor was the same as the previously reported ET-G complex, and the resulting dataset demonstrated significantly improved anisotropy. This modified G protein will be utilized for the structural determination of other GPCR-G complexes.
History
DepositionDec 15, 2023-
Header (metadata) releaseApr 3, 2024-
Map releaseApr 3, 2024-
UpdateApr 3, 2024-
Current statusApr 3, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_38330.png

Downloads & links

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Map

FileDownload / File: emd_38330.map.gz / Format: CCP4 / Size: 52.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 0.96833 Å
Density
Contour LevelBy AUTHOR: 7.0
Minimum - Maximum-18.689352 - 35.821227999999998
Average (Standard dev.)0.0025409844 (±1.0766505)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderZYX
Origin000
Dimensions240240240
Spacing240240240
CellA=B=C: 232.39992 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_38330_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_38330_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, eGt trimer and Nb35*

EntireName: Complex of Endothelin-1, ETB, eGt trimer and Nb35*
Components
  • Complex: Complex of Endothelin-1, ETB, eGt trimer and Nb35*
    • Protein or peptide: Endothelin receptor type B
    • Protein or peptide: Endothelin-1Endothelin 1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Camelid antibody VHH fragment
  • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2,eGt-alpha

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Supramolecule #1: Complex of Endothelin-1, ETB, eGt trimer and Nb35*

SupramoleculeName: Complex of Endothelin-1, ETB, eGt trimer and Nb35* / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #4-#5, #2-#3
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: 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,eGt-alpha
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Bos taurus (cattle)
Molecular weightTheoretical: 48.998785 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI LGSAGSAGSA MGCTLSAED KAAVERSKMI DRNLREDGEK AARTVKLLLL GAGESGKSTI VKQMKIIHQD GYSLEECLEF IAIIYGNTLQ S ILAIVRAM ...String:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI LGSAGSAGSA MGCTLSAED KAAVERSKMI DRNLREDGEK AARTVKLLLL GAGESGKSTI VKQMKIIHQD GYSLEECLEF IAIIYGNTLQ S ILAIVRAM TTLNIQYGDS ARQDDARKLM HMADTIEEGT MPKEMSDIIQ RLWKDSGIQA CFDRASEYQL NDSAGYYLSD LE RLVTPGY VPTEQDVLRS RVKTTGIIET QFSFKDLNFR MFDVGGQRDE RRKWIHCFEG VTAIIFCVAL SDYDMVLVED NQT NRMQES MNLFKSICNN KWFTDTSIIL FLNKKDLFEE KIKKSPLTDY YPEYAGSNTY EEAGNYIKVQ FLELNMASDV KEIY SHMTC ATDTQNVKFV FDAVTDIIIK ENLKDCGLF

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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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: Rattus rattus (black rat)
Molecular weightTheoretical: 40.470105 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: GSQLQSELDQ LRQEAEQLKN QIRDARKACA DATLSQITNN IDPVGRIQMR TRRTLRGHLA KIYAMHWGTD SRLLVSASQD GKLIIWDSY TTNKVHAIPL RSSWVMTCAY APSGNYVACG GLDNICSIYN LKTREGNVRV SRELAGHTGY LSCCRFLDDN Q IVTSSGDT ...String:
GSQLQSELDQ 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 DSFLKIWNGA SGGGSGGNSG SSGGSSGVSG WRLFKKIS

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Macromolecule #3: Camelid antibody VHH fragment

MacromoleculeName: Camelid antibody VHH fragment / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Lama glama (llama)
Molecular weightTheoretical: 17.395631 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MKYLLPTAAA GLLLLAAQPA MAMQVQLQES GGGLVQPGGS LRLSCAASGF TFSNYKMNWV RQAPGKGLQW VSDISQSGAS ISYTGSVKG RFTISRDDAK NTLYLQMNSL KPADTAVYYC ARCPAPFTRD CFDVTSTAYA YRGQGTQVTV SSHHHHHHEP E A

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Macromolecule #4: Endothelin receptor type B

MacromoleculeName: Endothelin receptor type B / type: protein_or_peptide / ID: 4 / 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 #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
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

BufferpH: 8
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 / Nominal defocus max: 1.6 µm / Nominal defocus min: 0.8 µm
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / 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: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 52285

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