+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-37224 | |||||||||
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Title | Cryo-EM structure of the GPR61-Gs complex | |||||||||
Map data | ||||||||||
Sample |
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Keywords | GPCR / Gs / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information ligand-independent adenylate cyclase-activating G protein-coupled receptor signaling pathway / Adenylate cyclase activating pathway / arrestin family protein binding / Adenylate cyclase inhibitory pathway / G-protein beta/gamma-subunit complex binding / G protein-coupled receptor binding / G protein-coupled receptor activity / Olfactory Signaling Pathway / Activation of the phototransduction cascade / Prostacyclin signalling through prostacyclin receptor ...ligand-independent adenylate cyclase-activating G protein-coupled receptor signaling pathway / Adenylate cyclase activating pathway / arrestin family protein binding / Adenylate cyclase inhibitory pathway / G-protein beta/gamma-subunit complex binding / G protein-coupled receptor binding / G protein-coupled receptor activity / Olfactory Signaling Pathway / Activation of the phototransduction cascade / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Glucagon signaling in metabolic regulation / 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 / G beta:gamma signalling through CDC42 / Vasopressin regulates renal water homeostasis via Aquaporins / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Glucagon-type ligand receptors / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / G alpha (z) signalling events / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production / cellular response to catecholamine stimulus / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / adenylate cyclase-activating dopamine receptor signaling pathway / G beta:gamma signalling through PI3Kgamma / GPER1 signaling / cellular response to prostaglandin E stimulus / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / 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 / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / receptor complex / endosome membrane / endosome / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / GTP binding / protein-containing complex binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Lama glama (llama) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.16 Å | |||||||||
Authors | Nie Y / Qiu Z / Zheng S | |||||||||
Funding support | China, 1 items
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Citation | Journal: Nat Commun / Year: 2023 Title: Specific binding of GPR174 by endogenous lysophosphatidylserine leads to high constitutive G signaling. Authors: Yingying Nie / Zeming Qiu / Sijia Chen / Zhao Chen / Xiaocui Song / Yan Ma / Niu Huang / Jason G Cyster / Sanduo Zheng / Abstract: Many orphan G protein-coupled receptors (GPCRs) remain understudied because their endogenous ligands are unknown. Here, we show that a group of class A/rhodopsin-like orphan GPCRs including GPR61, ...Many orphan G protein-coupled receptors (GPCRs) remain understudied because their endogenous ligands are unknown. Here, we show that a group of class A/rhodopsin-like orphan GPCRs including GPR61, GPR161 and GPR174 increase the cAMP level similarly to fully activated D1 dopamine receptor (D1R). We report cryo-electron microscopy structures of the GPR61‒G, GPR161‒G and GPR174‒G complexes without any exogenous ligands. The GPR174 structure reveals that endogenous lysophosphatidylserine (lysoPS) is copurified. While GPR174 fails to respond to exogenous lysoPS, likely owing to its maximal activation by the endogenous ligand, GPR174 mutants with lower ligand binding affinities can be specifically activated by lysoPS but not other lipids, in a dose-dependent manner. Moreover, GPR174 adopts a non-canonical G coupling mode. The structures of GPR161 and GPR61 reveal that the second extracellular loop (ECL2) penetrates into the orthosteric pocket, possibly contributing to constitutive activity. Our work definitively confirms lysoPS as an endogenous GPR174 ligand and suggests that high constitutive activity of some orphan GPCRs could be accounted for by their having naturally abundant ligands. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_37224.map.gz | 20.9 MB | EMDB map data format | |
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Header (meta data) | emd-37224-v30.xml emd-37224.xml | 21 KB 21 KB | Display Display | EMDB header |
Images | emd_37224.png | 68.5 KB | ||
Filedesc metadata | emd-37224.cif.gz | 6.7 KB | ||
Others | emd_37224_half_map_1.map.gz emd_37224_half_map_2.map.gz | 20.7 MB 20.7 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-37224 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-37224 | HTTPS FTP |
-Validation report
Summary document | emd_37224_validation.pdf.gz | 813.8 KB | Display | EMDB validaton report |
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Full document | emd_37224_full_validation.pdf.gz | 813.4 KB | Display | |
Data in XML | emd_37224_validation.xml.gz | 10.2 KB | Display | |
Data in CIF | emd_37224_validation.cif.gz | 11.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-37224 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-37224 | HTTPS FTP |
-Related structure data
Related structure data | 8kgkMC 8kh4C 8kh5C M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_37224.map.gz / Format: CCP4 / Size: 22.2 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.08 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_37224_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_37224_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Cryo-EM structure of the GPR61 and mini-Gs complex with Nb35
Entire | Name: Cryo-EM structure of the GPR61 and mini-Gs complex with Nb35 |
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Components |
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-Supramolecule #1: Cryo-EM structure of the GPR61 and mini-Gs complex with Nb35
Supramolecule | Name: Cryo-EM structure of the GPR61 and mini-Gs complex with Nb35 type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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-Supramolecule #2: GPR61 and mini-Gs
Supramolecule | Name: GPR61 and mini-Gs / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: Homo sapiens (human) |
-Supramolecule #3: Nb35
Supramolecule | Name: Nb35 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #5 |
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Source (natural) | Organism: Lama glama (llama) |
-Macromolecule #1: G-protein coupled receptor 61
Macromolecule | Name: G-protein coupled receptor 61 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 42.527605 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: DYKDDDDKAM ESSPIPQSSG NSSTLGRVPQ TPGPSTASGV PEVGLRDVAS ESVALFFMLL LDLTAVAGNA AVMAVIAKTP ALRKFVFVF HLCLVDLLAA LTLMPLAMLS SSALFDHALF GEVACRLYLF LSVCFVSLAI LSVSAINVER YYYVVHPMRY E VRMTLGLV ...String: DYKDDDDKAM ESSPIPQSSG NSSTLGRVPQ TPGPSTASGV PEVGLRDVAS ESVALFFMLL LDLTAVAGNA AVMAVIAKTP ALRKFVFVF HLCLVDLLAA LTLMPLAMLS SSALFDHALF GEVACRLYLF LSVCFVSLAI LSVSAINVER YYYVVHPMRY E VRMTLGLV ASVLVGVWVK ALAMASVPVL GRVSWEEGAP SVPPGCSLQW SHSAYCQLFV VVFAVLYFLL PLLLILVVYC SM FRVARVA AMQHGPLPTW METPRQRSES LSSRSTMVTS SGAPQTTPHR TFGGGKAAVV LLAVGGQFLL CWLPYFSFHL YVA LSAQPI STGQVESVVT WIGYFCFTSN PFFYGCLNRQ IRGELSKQFV CFFKPAPELE VLFQGPLEVL FQGP UniProtKB: G-protein coupled receptor 61 |
-Macromolecule #2: Guanine nucleotide-binding protein G(olf) subunit alpha,Guanine n...
Macromolecule | Name: Guanine nucleotide-binding protein G(olf) subunit alpha,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 29.008785 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: NSKTTEDQRN EEKAQREANK KIEKQLQKDK QVYRATHRLL LLGADNSGKS TIVKQMRILH GGSGGSGGTS GIFETKFQVD KVNFHMFDV GGQRDERRKW IQCFNDVTAI IFVVDSSDYN RLQEALNLFK SIWNNRWLRT ISVILFLNKQ DLLAEKVLAG K SKIEDYFP ...String: NSKTTEDQRN EEKAQREANK KIEKQLQKDK QVYRATHRLL LLGADNSGKS TIVKQMRILH GGSGGSGGTS GIFETKFQVD KVNFHMFDV GGQRDERRKW IQCFNDVTAI IFVVDSSDYN RLQEALNLFK SIWNNRWLRT ISVILFLNKQ DLLAEKVLAG K SKIEDYFP EFARYTTPED ATPEPGEDPR VTRAKYFIRD EFLRISTASG DGRHYCYPHF TCAVDTENAR RIFNDCRDII QR MHLRQYE LL UniProtKB: Guanine nucleotide-binding protein G(olf) subunit alpha, UNIPROTKB: P63092 |
-Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 39.286891 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: HHHHHHLEVL FQGPGSSGSE LDQLRQEAEQ LKNQIRDARK ACADATLSQI TNNIDPVGRI QMRTRRTLRG HLAKIYAMHW GTDSRLLVS ASQDGKLIIW DSYTTNKVHA IPLRSSWVMT CAYAPSGNYV ACGGLDNICS IYNLKTREGN VRVSRELAGH T GYLSCCRF ...String: HHHHHHLEVL FQGPGSSGSE LDQLRQEAEQ LKNQIRDARK ACADATLSQI TNNIDPVGRI QMRTRRTLRG HLAKIYAMHW GTDSRLLVS ASQDGKLIIW DSYTTNKVHA IPLRSSWVMT CAYAPSGNYV ACGGLDNICS IYNLKTREGN VRVSRELAGH T GYLSCCRF LDDNQIVTSS GDTTCALWDI ETGQQTTTFT GHTGDVMSLS LAPDTRLFVS GACDASAKLW DVREGMCRQT FT GHESDIN AICFFPNGNA FATGSDDATC RLFDLRADQE LMTYSHDNII CGITSVSFSK SGRLLLAGYD DFNCNVWDAL KAD RAGVLA GHDNRVSCLG VTDDGMAVAT GSWDSFLKIW N UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #4: 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: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 7.845078 KDa |
Recombinant expression | Organism: Spodoptera frugiperda (fall armyworm) |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFSAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #5: Nanobody 35
Macromolecule | Name: Nanobody 35 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: Lama glama (llama) |
Molecular weight | Theoretical: 17.352498 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MKYLLPTAAA GLLLLAAQPA MAQVQLQESG GGLVQPGGSL RLSCAASGFT FSNYKMNWVR QAPGKGLEWV SDISQSGASI SYTGSVKGR FTISRDNAKN TLYLQMNSLK PEDTAVYYCA RCPAPFTRDC FDVTSTTYAY RGQGTQVTVS SHHHHHHEPE A |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Concentration | 7.0 mg/mL |
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Buffer | pH: 7.4 |
Grid | Model: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 35 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 281 K / Instrument: FEI VITROBOT MARK IV |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number real images: 923 / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.48 µm / Nominal defocus min: 0.87 µm / Nominal magnification: 64000 |
Sample stage | Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |