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- EMDB-23118: Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Pe... -
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Open data
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Basic information
Entry | Database: EMDB / ID: EMD-23118 | |||||||||
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Title | Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Peptide-Agonist Orexin B (OxB) | |||||||||
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![]() | Class A GPCR / Orexin receptor 2 / OX2R / membrane protein / Peptide agonist | |||||||||
Function / homology | ![]() type 1 orexin receptor binding / type 2 orexin receptor binding / regulation of circadian sleep/wake cycle, wakefulness / circadian sleep/wake cycle process / orexin receptor activity / negative regulation of transmission of nerve impulse / positive regulation of transmission of nerve impulse / Orexin and neuropeptides FF and QRFP bind to their respective receptors / neuronal dense core vesicle lumen / neuropeptide receptor activity ...type 1 orexin receptor binding / type 2 orexin receptor binding / regulation of circadian sleep/wake cycle, wakefulness / circadian sleep/wake cycle process / orexin receptor activity / negative regulation of transmission of nerve impulse / positive regulation of transmission of nerve impulse / Orexin and neuropeptides FF and QRFP bind to their respective receptors / neuronal dense core vesicle lumen / neuropeptide receptor activity / regulation of neurotransmitter secretion / neuropeptide hormone activity / sleep / positive regulation of calcium ion transport / locomotion / feeding behavior / response to alcohol / eating behavior / temperature homeostasis / response to starvation / negative regulation of DNA replication / negative regulation of potassium ion transport / peptide hormone binding / neuropeptide signaling pathway / regulation of cytosolic calcium ion concentration / cellular response to hormone stimulus / rough endoplasmic reticulum / excitatory postsynaptic potential / 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 / 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 / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / synaptic vesicle / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / ADP signalling through P2Y purinoceptor 1 / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / 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) / positive regulation of cold-induced thermogenesis / retina development in camera-type eye / positive regulation of cytosolic calcium ion concentration / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / chemical synaptic transmission / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / postsynapse / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / perinuclear region of cytoplasm / signal transduction / extracellular exosome / extracellular region / nucleoplasm / membrane / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | |||||||||
![]() | Hong C / Byrne NJ | |||||||||
![]() | ![]() Title: Structures of active-state orexin receptor 2 rationalize peptide and small-molecule agonist recognition and receptor activation. Authors: Hong C / Byrne NJ / Zamlynny B / Tummala S / Xiao L / Shipman JM / Partridge AT / Minnick C / Breslin MJ / Rudd MT / Stachel SJ / Rada VL / Kern JC / Armacost KA / Hollingsworth SA / O'Brien ...Authors: Hong C / Byrne NJ / Zamlynny B / Tummala S / Xiao L / Shipman JM / Partridge AT / Minnick C / Breslin MJ / Rudd MT / Stachel SJ / Rada VL / Kern JC / Armacost KA / Hollingsworth SA / O'Brien JA / Hall DL / McDonald TP / Strickland C / Brooun A / Soisson SM / Hollenstein K | |||||||||
History |
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Structure visualization
Movie |
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Structure viewer | EM map: ![]() ![]() ![]() |
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 73.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 24.6 KB 24.6 KB | Display Display | ![]() |
Images | ![]() | 164 KB | ||
Filedesc metadata | ![]() | 7.5 KB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 465.5 KB | Display | ![]() |
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Full document | ![]() | 465.1 KB | Display | |
Data in XML | ![]() | 6.4 KB | Display | |
Data in CIF | ![]() | 7.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 7l1uMC ![]() 7l1vC C: citing same article ( M: atomic model generated by this map |
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Similar structure data |
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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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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.84 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
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Sample components
-Entire : Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Pe...
Entire | Name: Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Peptide-Agonist Orexin B (OxB) |
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Components |
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-Supramolecule #1: Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Pe...
Supramolecule | Name: Orexin Receptor 2 (OX2R) in Complex with G Protein and Natural Peptide-Agonist Orexin B (OxB) type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: Engineered Guanine nucleotide-binding protein subunit alpha
Macromolecule | Name: Engineered Guanine nucleotide-binding protein subunit alpha type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 28.040881 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GTLSAEDKAA VERSKMIEKQ LQKDKQVYRR TLRLLLLGAD NSGKSTIVKQ MRILHGGSGG SGGTSGIFET KFQVDKVNFH MFDVGGQRD ERRKWIQCFN DVTAIIFVVD SSDYNRLQEA LNDFKSIWNN RWLRTISVIL FLNKQDLLAE KVLAGKSKIE D YFPEFARY ...String: GTLSAEDKAA VERSKMIEKQ LQKDKQVYRR TLRLLLLGAD NSGKSTIVKQ MRILHGGSGG SGGTSGIFET KFQVDKVNFH MFDVGGQRD ERRKWIQCFN DVTAIIFVVD SSDYNRLQEA LNDFKSIWNN RWLRTISVIL FLNKQDLLAE KVLAGKSKIE D YFPEFARY TTPEDATPEP GEDPRVTRAK YFIRKEFVDI STASGDGRHI CYPHFTCAVD TENARRIFND CKDIILQMNL RE YNLV |
-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: 38.579148 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MGHHHHHHHH SELDQLRQEA EQLKNQIRDA RKACADATLS QITNNIDPVG RIQMRTRRTL RGHLAKIYAM HWGTDSRLLV SASQDGKLI IWDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR F LDDNQIVT ...String: MGHHHHHHHH SELDQLRQEA EQLKNQIRDA RKACADATLS QITNNIDPVG RIQMRTRRTL RGHLAKIYAM HWGTDSRLLV SASQDGKLI IWDSYTTNKV HAIPLRSSWV MTCAYAPSGN YVACGGLDNI CSIYNLKTRE GNVRVSRELA GHTGYLSCCR F LDDNQIVT SSGDTTCALW DIETGQQTTT FTGHTGDVMS LSLAPDTRLF VSGACDASAK LWDVREGMCR QTFTGHESDI NA ICFFPNG NAFATGSDDA TCRLFDLRAD QELMTYSHDN IICGITSVSF SKSGRLLLAG YDDFNCNVWD ALKADRAGVL AGH DNRVSC LGVTDDGMAV ATGSWDSFLK IWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-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: 7.845078 KDa |
Recombinant expression | Organism: ![]() |
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 #4: single-chain antibody Fv fragment (svFv16)
Macromolecule | Name: single-chain antibody Fv fragment (svFv16) / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 26.610615 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: GSDVQLVESG GGLVQPGGSR KLSCSASGFA FSSFGMHWVR QAPEKGLEWV AYISSGSGTI YYADTVKGRF TISRDDPKNT LFLQMTSLR SEDTAMYYCV RSIYYYGSSP FDFWGQGTTL TVSSGGGGSG GGGSGGGGSD IVMTQATSSV PVTPGESVSI S CRSSKSLL ...String: GSDVQLVESG GGLVQPGGSR KLSCSASGFA FSSFGMHWVR QAPEKGLEWV AYISSGSGTI YYADTVKGRF TISRDDPKNT LFLQMTSLR SEDTAMYYCV RSIYYYGSSP FDFWGQGTTL TVSSGGGGSG GGGSGGGGSD IVMTQATSSV PVTPGESVSI S CRSSKSLL HSNGNTYLYW FLQRPGQSPQ LLIYRMSNLA SGVPDRFSGS GSGTAFTLTI SRLEAEDVGV YYCMQHLEYP LT FGAGTKL ELK |
-Macromolecule #5: Hypocretin receptor type 2
Macromolecule | Name: Hypocretin receptor type 2 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 43.470875 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: DYKDDDAMGT KLEDSPPCRN WSSASELNET QEPFLNPTDY DDEEFLRYLW REYLHPKEYE WVLIAGYIIV FVVALIGNVL VCVAVWKNH HMRTVTNYFI VNLSLADVLV TITCLPATLV VDITETWFFG QSLCKVIPYL QTVSVSVSVL TLSCIALDRW Y AICHPLMF ...String: DYKDDDAMGT KLEDSPPCRN WSSASELNET QEPFLNPTDY DDEEFLRYLW REYLHPKEYE WVLIAGYIIV FVVALIGNVL VCVAVWKNH HMRTVTNYFI VNLSLADVLV TITCLPATLV VDITETWFFG QSLCKVIPYL QTVSVSVSVL TLSCIALDRW Y AICHPLMF KSTAKRARNS IVIIWIVSCI IMIPQAIVME CSTVFPGLAN KTTLFTVCDE RWGGEIYPKM YHICFFLVTY MA PLCLMVL AYLQIFRKLW CRQIPGTSSE IKQIRARRKT ARMLMVVLLV FAICYLPISI LNVLKRVFGM FAHTEDRETV YAW FTFSHW LVYANSAANP IIYNFLSGKF REEFKAAFSC CCLGVHHRHH HHHHHHHH UniProtKB: Orexin receptor type 2 |
-Macromolecule #6: Orexin
Macromolecule | Name: Orexin / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 2.902364 KDa |
Sequence | String: RSGPPGLQGR LQRLLQASGN HAAGILTM(NH2) UniProtKB: Hypocretin neuropeptide precursor |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Concentration | 5 mg/mL | ||||||||||||||||||
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Buffer | pH: 7.6 Component:
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Grid | Model: C-flat / Material: GOLD / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY / Support film - Film thickness: 20 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.038 kPa / Details: Carbon side facing up | ||||||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Temperature | Min: 83.0 K / Max: 93.0 K |
Specialist optics | Energy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5700 pixel / Digitization - Dimensions - Height: 4100 pixel / Number grids imaged: 3 / Number real images: 38810 / Average exposure time: 0.05 sec. / Average electron dose: 1.0625 e/Å2 / Details: 40 frames with total 2second exposure |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | C2 aperture diameter: 50.0 µm / Calibrated defocus max: 2.2 µm / Calibrated defocus min: 0.6 µm / Calibrated magnification: 59524 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 105000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Initial model |
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Refinement | Space: REAL / Protocol: AB INITIO MODEL / Overall B value: 131 / Target criteria: Correlation | ||||||||||||||||||
Output model | ![]() PDB-7l1u: |