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Yorodumi- EMDB-24733: Oxytocin receptor (OTR) bound to oxytocin in complex with a heter... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-24733 | |||||||||
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Title | Oxytocin receptor (OTR) bound to oxytocin in complex with a heterotrimeric Gq protein | |||||||||
Map data | Combined map from local refinements | |||||||||
Sample |
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Keywords | HORMONE / GPCR COMPLEX / TRANSMEMBRANE RECEPTOR / OXYTOCIN RECEPTOR / OTR / OT / OXTR / G PROTEIN / OXYTOCIN / VASOTOCIN / MEMBRANE PROTEIN / MEMBRANE PROTEIN-NEUROPEPTIDE complex | |||||||||
Function / homology | Function and homology information oxytocin receptor activity / positive regulation of hindgut contraction / maternal aggressive behavior / response to anoxia / oxytocin receptor binding / neurohypophyseal hormone activity / V1A vasopressin receptor binding / Vasopressin-like receptors / response to prostaglandin E / regulation of systemic arterial blood pressure by vasopressin ...oxytocin receptor activity / positive regulation of hindgut contraction / maternal aggressive behavior / response to anoxia / oxytocin receptor binding / neurohypophyseal hormone activity / V1A vasopressin receptor binding / Vasopressin-like receptors / response to prostaglandin E / regulation of systemic arterial blood pressure by vasopressin / vasopressin receptor activity / positive regulation of uterine smooth muscle contraction / maternal process involved in parturition / positive regulation of penile erection / positive regulation of norepinephrine secretion / negative regulation of urine volume / sperm ejaculation / telencephalon development / drinking behavior / grooming behavior / response to sucrose / positive regulation of prostaglandin secretion / response to ether / positive regulation of blood pressure / neuropeptide hormone activity / maternal behavior / positive regulation of ossification / digestive tract development / positive regulation of synapse assembly / positive regulation of female receptivity / response to food / eating behavior / male mating behavior / suckling behavior / microvillus / peptide hormone binding / social behavior / estrous cycle / positive regulation of synaptic transmission / response to retinoic acid / response to electrical stimulus / response to glucocorticoid / cellular response to hormone stimulus / positive regulation of vasoconstriction / muscle contraction / response to cAMP / lactation / negative regulation of blood pressure / ERK1 and ERK2 cascade / response to amphetamine / regulation of heart rate / positive regulation of synaptic transmission, glutamatergic / secretory granule / response to cytokine / response to activity / response to progesterone / positive regulation of synaptic transmission, GABAergic / female pregnancy / response to cocaine / adherens junction / peptide binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / terminal bouton / 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 / memory / Prostacyclin signalling through prostacyclin receptor / response to peptide hormone / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / G beta:gamma signalling through BTK / 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 / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / 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 Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.9 Å | |||||||||
Authors | Meyerowitz JG / Panova O / Skiniotis G | |||||||||
Funding support | United States, 1 items
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Citation | Journal: Nat Struct Mol Biol / Year: 2022 Title: The oxytocin signaling complex reveals a molecular switch for cation dependence. Authors: Justin G Meyerowitz / Michael J Robertson / Ximena Barros-Álvarez / Ouliana Panova / Robert M Nwokonko / Yang Gao / Georgios Skiniotis / Abstract: Oxytocin (OT) and vasopressin (AVP) are conserved peptide signaling hormones that are critical for diverse processes including osmotic homeostasis, reproduction, lactation and social interaction. OT ...Oxytocin (OT) and vasopressin (AVP) are conserved peptide signaling hormones that are critical for diverse processes including osmotic homeostasis, reproduction, lactation and social interaction. OT acts through the oxytocin receptor (OTR), a magnesium-dependent G protein-coupled receptor that is a therapeutic target for treatment of postpartum hemorrhage, dysfunctional labor and autism. However, the molecular mechanisms that underlie OTR activation by OT and the dependence on magnesium remain unknown. Here we present the wild-type active-state structure of human OTR bound to OT and miniG determined by cryo-EM. The structure reveals a unique activation mechanism adopted by OTR involving both the formation of a Mg coordination complex between OT and the receptor, and disruption of transmembrane helix 7 (TM7) by OT. Our functional assays demonstrate the role of TM7 disruption and provide the mechanism of full agonism by OT and partial agonism by OT analogs. Furthermore, we find that the identity of a single cation-coordinating residue across vasopressin family receptors determines whether the receptor is cation-dependent. Collectively, these results demonstrate how the Mg-dependent OTR is activated by OT, provide essential information for structure-based drug discovery efforts and shed light on the molecular determinants of cation dependence of vasopressin family receptors throughout the animal kingdom. | |||||||||
History |
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-Structure visualization
Movie |
Movie viewer |
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Structure viewer | EM map: SurfViewMolmilJmol/JSmol |
Supplemental images |
-Downloads & links
-EMDB archive
Map data | emd_24733.map.gz | 1.5 MB | EMDB map data format | |
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Header (meta data) | emd-24733-v30.xml emd-24733.xml | 24.5 KB 24.5 KB | Display Display | EMDB header |
Images | emd_24733.png | 156.3 KB | ||
Filedesc metadata | emd-24733.cif.gz | 7 KB | ||
Others | emd_24733_additional_1.map.gz emd_24733_additional_2.map.gz emd_24733_additional_3.map.gz | 106.6 MB 117.6 MB 117.8 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-24733 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-24733 | HTTPS FTP |
-Validation report
Summary document | emd_24733_validation.pdf.gz | 345.7 KB | Display | EMDB validaton report |
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Full document | emd_24733_full_validation.pdf.gz | 345.3 KB | Display | |
Data in XML | emd_24733_validation.xml.gz | 6.4 KB | Display | |
Data in CIF | emd_24733_validation.cif.gz | 7.4 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24733 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-24733 | HTTPS FTP |
-Related structure data
Related structure data | 7rycMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | |
EM raw data | EMPIAR-10936 (Title: Oxytocin receptor (OTR) bound to oxytocin in complex with a heterotrimeric Gq protein Data size: 4.1 TB Data #1: Unaligned multi-frame micrographs of the oxytocin-oxytocin receptor-miniGq complex [micrographs - multiframe]) |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_24733.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | Combined map from local refinements | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.8521 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Additional map: Local refinement of TMs with deepEMhancer sharpening
File | emd_24733_additional_1.map | ||||||||||||
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Annotation | Local refinement of TMs with deepEMhancer sharpening | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Local refinement of G protein
File | emd_24733_additional_2.map | ||||||||||||
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Annotation | Local refinement of G protein | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Global non-uniform refinement
File | emd_24733_additional_3.map | ||||||||||||
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Annotation | Global non-uniform refinement | ||||||||||||
Projections & Slices |
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Density Histograms |
-Sample components
+Entire : Oxytocin receptor signaling complex with oxytocin and miniGq and ...
+Supramolecule #1: Oxytocin receptor signaling complex with oxytocin and miniGq and ...
+Supramolecule #2: Oxytocin
+Supramolecule #3: Oxytocin receptor
+Supramolecule #4: miniGq
+Supramolecule #5: scFv16
+Macromolecule #1: Oxytocin
+Macromolecule #2: Oxytocin receptor
+Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2...
+Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
+Macromolecule #5: scFv16
+Macromolecule #6: MAGNESIUM ION
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.4 |
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Grid | Model: UltrAuFoil R1.2/1.3 / Material: GOLD / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: GLOW DISCHARGE |
Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | TFS KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Number grids imaged: 1 / Number real images: 40 / Average exposure time: 2.497 sec. / Average electron dose: 54.8 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | C2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: -0.0018000000000000002 µm / Nominal defocus min: -0.0008 µm |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: OTHER / Details: Ab initio reconstruction |
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Final reconstruction | Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 423703 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |
-Atomic model buiding 1
Refinement | Space: REAL / Overall B value: 69.03 |
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Output model | PDB-7ryc: |