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- EMDB-32244: Cryo-EM structure of a monomeric GPCR-Gi complex with small molecule -
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Open data
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Basic information
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Title | Cryo-EM structure of a monomeric GPCR-Gi complex with small molecule | |||||||||
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Function / homology | ![]() apelin receptor activity / apelin receptor signaling pathway / regulation of gap junction assembly / positive regulation of inhibitory G protein-coupled receptor phosphorylation / vascular associated smooth muscle cell differentiation / atrioventricular valve development / regulation of body fluid levels / venous blood vessel development / positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis / endocardial cushion formation ...apelin receptor activity / apelin receptor signaling pathway / regulation of gap junction assembly / positive regulation of inhibitory G protein-coupled receptor phosphorylation / vascular associated smooth muscle cell differentiation / atrioventricular valve development / regulation of body fluid levels / venous blood vessel development / positive regulation of blood vessel endothelial cell proliferation involved in sprouting angiogenesis / endocardial cushion formation / negative regulation of cAMP-mediated signaling / coronary vasculature development / adult heart development / vasculature development / aorta development / ventricular septum morphogenesis / blood vessel development / heart looping / Adenylate cyclase inhibitory pathway / positive regulation of protein localization to cell cortex / vasculogenesis / regulation of cAMP-mediated signaling / D2 dopamine receptor binding / G protein-coupled serotonin receptor binding / regulation of mitotic spindle organization / cellular response to forskolin / gastrulation / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Peptide ligand-binding receptors / positive regulation of release of sequestered calcium ion into cytosol / Regulation of insulin secretion / G protein-coupled receptor binding / G protein-coupled receptor activity / electron transport chain / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine 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 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / response to peptide hormone / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / cellular response to prostaglandin E stimulus / positive regulation of angiogenesis / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / GDP binding / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / retina development in camera-type eye / Ca2+ pathway / signaling receptor activity / heart development / phospholipase C-activating G protein-coupled receptor signaling pathway / cell cortex / midbody / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / regulation of gene expression / G alpha (q) signalling events / angiogenesis / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / periplasmic space / electron transfer activity / iron ion binding / G protein-coupled receptor signaling pathway / cell division / lysosomal membrane Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.71 Å | |||||||||
![]() | Xu F / Yue Y / Liu LE / Wu LJ / Hanson M | |||||||||
Funding support | 1 items
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![]() | ![]() Title: Structural insight into apelin receptor-G protein stoichiometry. Authors: Yang Yue / Lier Liu / Li-Jie Wu / Yiran Wu / Ling Wang / Fei Li / Junlin Liu / Gye-Won Han / Bo Chen / Xi Lin / Rebecca L Brouillette / Émile Breault / Jean-Michel Longpré / Songting Shi / ...Authors: Yang Yue / Lier Liu / Li-Jie Wu / Yiran Wu / Ling Wang / Fei Li / Junlin Liu / Gye-Won Han / Bo Chen / Xi Lin / Rebecca L Brouillette / Émile Breault / Jean-Michel Longpré / Songting Shi / Hui Lei / Philippe Sarret / Raymond C Stevens / Michael A Hanson / Fei Xu / ![]() ![]() ![]() Abstract: The technique of cryogenic-electron microscopy (cryo-EM) has revolutionized the field of membrane protein structure and function with a focus on the dominantly observed molecular species. This report ...The technique of cryogenic-electron microscopy (cryo-EM) has revolutionized the field of membrane protein structure and function with a focus on the dominantly observed molecular species. This report describes the structural characterization of a fully active human apelin receptor (APJR) complexed with heterotrimeric G protein observed in both 2:1 and 1:1 stoichiometric ratios. We use cryo-EM single-particle analysis to determine the structural details of both species from the same sample preparation. Protein preparations, in the presence of the endogenous peptide ligand ELA or a synthetic small molecule, both demonstrate these mixed stoichiometric states. Structural differences in G protein engagement between dimeric and monomeric APJR suggest a role for the stoichiometry of G protein-coupled receptor- (GPCR-)G protein coupling on downstream signaling and receptor pharmacology. Furthermore, a small, hydrophobic dimer interface provides a starting framework for additional class A GPCR dimerization studies. Together, these findings uncover a mechanism of versatile regulation through oligomerization by which GPCRs can modulate their signaling. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 110.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 21.5 KB 21.5 KB | Display Display | ![]() |
Images | ![]() | 48.3 KB | ||
Others | ![]() ![]() ![]() | 61.2 MB 115.9 MB 115.9 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7w0mMC ![]() 7susC ![]() 7w0lC ![]() 7w0nC ![]() 7w0oC ![]() 7w0pC 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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Voxel size | X=Y=Z: 0.85 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Additional map: #1
File | emd_32244_additional_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_32244_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_32244_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Complex of GPCR with Gi
Entire | Name: Complex of GPCR with Gi |
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Components |
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-Supramolecule #1: Complex of GPCR with Gi
Supramolecule | Name: Complex of GPCR with Gi / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
Recombinant expression | Organism: ![]() |
-Macromolecule #1: 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: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 40.55916 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: GSMGCTLSAE DKAAVERSKM IDRNLREDGE KAAREVKLLL LGAGESGKST IVKQMKIIHE AGYSEEECKQ YKAVVYSNTI QSIIAIIRA MGRLKIDFGD SARADDARQL FVLAGAAEEG FMTAELAGVI KRLWKDSGVQ ACFNRSREYQ LNDSAAYYLN D LDRIAQPN ...String: GSMGCTLSAE DKAAVERSKM IDRNLREDGE KAAREVKLLL LGAGESGKST IVKQMKIIHE AGYSEEECKQ YKAVVYSNTI QSIIAIIRA MGRLKIDFGD SARADDARQL FVLAGAAEEG FMTAELAGVI KRLWKDSGVQ ACFNRSREYQ LNDSAAYYLN D LDRIAQPN YIPTQQDVLR TRVKTTGIVE THFTFKDLHF KMFDVGGQRS ERKKWIHCFE GVTAIIFCVA LSDYDLVLAE DE EMNRMHE SMKLFDSICN NKWFTDTSII LFLNKKDLFE EKIKKSPLTI CYPEYAGSNT YEEAAAYIQC QFEDLNKRKD TKE IYTHFT CATDTKNVQF VFDAVTDVII KNNLKDCGLF |
-Macromolecule #2: 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: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 37.41693 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...String: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWN |
-Macromolecule #3: 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: 3 / 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 |
-Macromolecule #4: Soluble cytochrome b562,Apelin receptor
Macromolecule | Name: Soluble cytochrome b562,Apelin receptor / type: protein_or_peptide / ID: 4 Details: Fusion protein of tags, Cytochrome b-562, linker and Apelin receptor Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 54.312578 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MKTIIALSYI FCLVFADYKD DDDKHHHHHH HHHHLEVLFQ GPADLEDNWE TLNDNLKVIE KADNAAQVKD ALTKMRAAAL DAQKATPPK LEDKSPDSPE MKDFRHGFDI LVGQIDDALK LANEGKVKEA QAAAEQLKTT RNAYIQKYLE EGGDFDNYYG A DNQSECEY ...String: MKTIIALSYI FCLVFADYKD DDDKHHHHHH HHHHLEVLFQ GPADLEDNWE TLNDNLKVIE KADNAAQVKD ALTKMRAAAL DAQKATPPK LEDKSPDSPE MKDFRHGFDI LVGQIDDALK LANEGKVKEA QAAAEQLKTT RNAYIQKYLE EGGDFDNYYG A DNQSECEY TDWKSSGALI PAIYMLVFLL GTTGNGLVLW TVFRSSREKR RSADIFIASL AVADLTFVVT LPLWATYTYR DY DWPFGTF FCKLSSYLIF VNMYASVFCL TGLSFDRYLA IVRPVANARL RLRVSGAVAT AVLWVLAALL AMPVMVLRTT GDL ENTTKV QCYMDYSMVA TVSSEWAWEV GLGVSSTTVG FVVPFTIMLT CYFFIAQTIA GHFRKERIEG LRKRRRLLSI IVVL VVTFA LCWMPYHLVK TLYMLGSLLH WPCDFDLFLM NIFPYCTCIS YVNSCLNPFL YAFFDPRFRQ ACTSMLCCGQ SR |
-Macromolecule #5: scFv16
Macromolecule | Name: scFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 31.870629 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFADV QLVESGGGLV QPGGSRKLSC SASGFAFSSF GMHWVRQAPE KGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSEDT AMYYCVRSIY YYGSSPFDFW GQGTTLTVSS G GGGSGGGG ...String: MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFADV QLVESGGGLV QPGGSRKLSC SASGFAFSSF GMHWVRQAPE KGLEWVAYI SSGSGTIYYA DTVKGRFTIS RDDPKNTLFL QMTSLRSEDT AMYYCVRSIY YYGSSPFDFW GQGTTLTVSS G GGGSGGGG SGGGGSDIVM TQATSSVPVT PGESVSISCR SSKSLLHSNG NTYLYWFLQR PGQSPQLLIY RMSNLASGVP DR FSGSGSG TAFTLTISRL EAEDVGVYYC MQHLEYPLTF GAGTKLELKA AAHHHHHHHH |
-Macromolecule #6: (1R,2S)-N-[4-(2,6-dimethoxyphenyl)-5-(6-methylpyridin-2-yl)-1,2,4...
Macromolecule | Name: (1R,2S)-N-[4-(2,6-dimethoxyphenyl)-5-(6-methylpyridin-2-yl)-1,2,4-triazol-3-yl]-1-(5-methylpyrimidin-2-yl)-1-oxidanyl-propane-2-sulfonamide type: ligand / ID: 6 / Number of copies: 1 / Formula: 8EH |
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Molecular weight | Theoretical: 525.58 Da |
Chemical component information | ![]() ChemComp-8EH: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K2 QUANTUM (4k x 4k) / Average electron dose: 60.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.71 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 131362 |
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Initial angle assignment | Type: COMMON LINE |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |