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- EMDB-38403: U46619 bound Thromboxane A2 receptor-Gq Protein Complex -

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Entry
Database: EMDB / ID: EMD-38403
TitleU46619 bound Thromboxane A2 receptor-Gq Protein Complex
Map data
Sample
  • Complex: U46619-TP-miniGq-scFv16 complex
    • Protein or peptide: Engineered miniGq
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Antibody fragment scFv16
    • Protein or peptide: Fusion tag,Thromboxane A2 receptor,LgBiT
  • Ligand: (5Z)-7-{(1R,4S,5S,6R)-6-[(1E,3S)-3-hydroxyoct-1-en-1-yl]-2-oxabicyclo[2.2.1]hept-5-yl}hept-5-enoic acid
Keywordscryo-EM / Complex / Signaling Protein / MEMBRANE PROTEIN
Function / homology
Function and homology information


thromboxane A2 receptor activity / Prostanoid ligand receptors / positive regulation of smooth muscle contraction / positive regulation of blood pressure / negative regulation of cell migration involved in sprouting angiogenesis / response to testosterone / smooth muscle contraction / positive regulation of blood coagulation / positive regulation of vasoconstriction / response to nutrient ...thromboxane A2 receptor activity / Prostanoid ligand receptors / positive regulation of smooth muscle contraction / positive regulation of blood pressure / negative regulation of cell migration involved in sprouting angiogenesis / response to testosterone / smooth muscle contraction / positive regulation of blood coagulation / positive regulation of vasoconstriction / response to nutrient / acrosomal vesicle / guanyl-nucleotide exchange factor activity / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / positive regulation of angiogenesis / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / cellular response to lipopolysaccharide / GTPase binding / positive regulation of cytosolic calcium ion concentration / Ca2+ pathway / retina development in camera-type eye / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / fibroblast proliferation / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / response to ethanol / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / nuclear speck / G protein-coupled receptor signaling pathway / inflammatory response / response to xenobiotic stimulus / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Thromboxane receptor / Prostanoid receptor / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit ...Thromboxane receptor / Prostanoid receptor / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / 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) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
Thromboxane A2 receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Similarity search - Component
Biological speciesHomo sapiens (human) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.11 Å
AuthorsZhang X / Li X / Liu G / Gong W
Funding support China, 2 items
OrganizationGrant numberCountry
Ministry of Science and Technology (MoST, China)2019YFA0904100 China
National Natural Science Foundation of China (NSFC)T2221005 China
CitationJournal: Cell Rep / Year: 2024
Title: Structural basis for ligand recognition and activation of the prostanoid receptors.
Authors: Xiu Li / Xuan Zhang / Xin Wen / Daolai Zhang / Changxiu Qu / Xinyi Miao / Wenkai Zhang / Ru Zhang / Guibing Liu / Peng Xiao / Jin-Peng Sun / Weimin Gong /
Abstract: Prostaglandin F (PGF) and thromboxane A (TXA) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through ...Prostaglandin F (PGF) and thromboxane A (TXA) are endogenous arachidonic acid metabolites, modulating diverse physiological processes including inflammation and cardiovascular homeostasis through activating PGF receptor (FP) and TXA receptor (TP). Ligands targeting FP and TP have demonstrated efficacy in treating conditions like glaucoma and cardiovascular diseases in humans, as well as reproductive-related diseases in animals. Here, we present five cryoelectron microscopy structures illustrating FP and TP in complex with G and bound to PGF (endogenous ligand), latanoprost acid (a clinical drug), and two other synthetic agonists. Combined with mutational and functional studies, these structures reveal not only structural features for the specific recognition of endogenous ligands and attainment of receptor selectivity of FP and TP but also the common mechanisms of receptor activation and G protein coupling. The findings may enrich our knowledge of ligand recognition and signal transduction of the prostanoid receptor family and facilitate rational ligand design toward these two receptors.
History
DepositionDec 21, 2023-
Header (metadata) releaseFeb 28, 2024-
Map releaseFeb 28, 2024-
UpdateNov 13, 2024-
Current statusNov 13, 2024Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_38403.png

Downloads & links

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Map

FileDownload / File: emd_38403.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 192 pix.
= 205.44 Å		1.07 Å/pix.
x 192 pix.
= 205.44 Å		1.07 Å/pix.
x 192 pix.
= 205.44 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.07 Å
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Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.04
Minimum - Maximum-0.30698106 - 0.44329283
Average (Standard dev.)-0.00023094747 (±0.011453285)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions192192192
Spacing192192192
CellA=B=C: 205.44 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_38403_half_map_1.map
Projections & Slices
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Half map: #1

Fileemd_38403_half_map_2.map
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Sample components

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Entire : U46619-TP-miniGq-scFv16 complex

EntireName: U46619-TP-miniGq-scFv16 complex
Components
  • Complex: U46619-TP-miniGq-scFv16 complex
    • Protein or peptide: Engineered miniGq
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Antibody fragment scFv16
    • Protein or peptide: Fusion tag,Thromboxane A2 receptor,LgBiT
  • Ligand: (5Z)-7-{(1R,4S,5S,6R)-6-[(1E,3S)-3-hydroxyoct-1-en-1-yl]-2-oxabicyclo[2.2.1]hept-5-yl}hept-5-enoic acid

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Supramolecule #1: U46619-TP-miniGq-scFv16 complex

SupramoleculeName: U46619-TP-miniGq-scFv16 complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Engineered miniGq

MacromoleculeName: Engineered miniGq / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 28.305244 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RRTLRLLLLG ADNSGKSTIV KQMRILHGGS GGSGGTSGIF ETKFQVDKVN FHMFDVGAQ RDERRKWIQC FNDVTAIIFV VDSSDYNRLQ EALNDFKSIW NNRWLRTISV ILFLNKQDLL AEKVLAGKSK I EDYFPEFA ...String:
MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RRTLRLLLLG ADNSGKSTIV KQMRILHGGS GGSGGTSGIF ETKFQVDKVN FHMFDVGAQ RDERRKWIQC FNDVTAIIFV VDSSDYNRLQ EALNDFKSIW NNRWLRTISV ILFLNKQDLL AEKVLAGKSK I EDYFPEFA RYTTPEDATP EPGEDPRVTR AKYFIRKEFV DISTASGDGR HICYPHFTCS VDTENARRIF NDCKDIILQM NL REYNLV

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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: Homo sapiens (human)
Molecular weightTheoretical: 40.845559 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV ...String:
MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV TSSGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD IN AICFFPN GNAFATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAG HDNRVS CLGVTDDGMA VATGSWDSFL KIWNGSSGGG GSGGGGSSGV SGWRLFKKIS

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #3: 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
type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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

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Macromolecule #4: Antibody fragment scFv16

MacromoleculeName: Antibody fragment scFv16 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 27.37443 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String:
DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL LEENLYFQ

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Macromolecule #5: Fusion tag,Thromboxane A2 receptor,LgBiT

MacromoleculeName: Fusion tag,Thromboxane A2 receptor,LgBiT / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 61.019816 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: DYKDDDDHHH HHHHHGQPGN GSAFLLAPNG SHAPDHNVTQ QRDEENLYFQ GVDMWPNGSS LGPCFRPTNI TLEERRLIAS PWFAASFCV VGLASNLLAL SVLAGARQGG SHTRSSFLTF LCGLVLTDFL GLLVTGTIVV SQHAALFEWH AVDPGCRLCR F MGVVMIFF ...String:
DYKDDDDHHH HHHHHGQPGN GSAFLLAPNG SHAPDHNVTQ QRDEENLYFQ GVDMWPNGSS LGPCFRPTNI TLEERRLIAS PWFAASFCV VGLASNLLAL SVLAGARQGG SHTRSSFLTF LCGLVLTDFL GLLVTGTIVV SQHAALFEWH AVDPGCRLCR F MGVVMIFF GLSPLLLGAA MASERYLGIT RPFSRPAVAS QRRAWATVGL VWAAALALGL LPLLGVGRYT VQYPGSWCFL TL GAESGDV AFGLLFSMLG GLSVGLSFLL NTVSVATLCH VYHGQEAAQQ RPRDSEVEMM AQLLGIMVVA SVCWLPLLVF IAQ TVLRNP PAMSPAGQLS RTTEKELLIY LRVATWNQIL DPWVYILFRR AVLRRLQPRL STRPRSLSHM GSSGGGGSGG GGSS GVFTL EDFVGDWEQT AAYNLDQVLE QGGVSSLLQN LAVSVTPIQR IVRSGENALK IDIHVIIPYE GLSADQMAQI EEVFK VVYP VDDHHFKVIL PYGTLVIDGV TPNMLNYFGR PYEGIAVFDG KKITVTGTLW NGNKIIDERL ITPDGSMLFR VTINS

UniProtKB: Thromboxane A2 receptor

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Macromolecule #6: (5Z)-7-{(1R,4S,5S,6R)-6-[(1E,3S)-3-hydroxyoct-1-en-1-yl]-2-oxabic...

MacromoleculeName: (5Z)-7-{(1R,4S,5S,6R)-6-[(1E,3S)-3-hydroxyoct-1-en-1-yl]-2-oxabicyclo[2.2.1]hept-5-yl}hept-5-enoic acid
type: ligand / ID: 6 / Number of copies: 1 / Formula: PUC
Molecular weightTheoretical: 350.492 Da
Chemical component information

ChemComp-PUC:
(5Z)-7-{(1R,4S,5S,6R)-6-[(1E,3S)-3-hydroxyoct-1-en-1-yl]-2-oxabicyclo[2.2.1]hept-5-yl}hept-5-enoic acid

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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: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 55.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.11 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 76401
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING

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