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Open data
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Basic information
| Entry | Database: PDB / ID: 8zje | |||||||||
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| Title | Cryo-EM structure of kisspeptin receptor bound to TAK-448 | |||||||||
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Keywords | MEMBRANE PROTEIN / Cryo-EM / kisspeptin receptor / GPR54 / G proteins / KISS1R | |||||||||
| Function / homology | Function and homology informationFatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / neuropeptide receptor activity / sensory perception of itch / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / PLC beta mediated events / phospholipase C-activating serotonin receptor signaling pathway / regulation of platelet activation / entrainment of circadian clock / positive regulation of hormone secretion ...Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / neuropeptide receptor activity / sensory perception of itch / phospholipase C-activating G protein-coupled glutamate receptor signaling pathway / PLC beta mediated events / phospholipase C-activating serotonin receptor signaling pathway / regulation of platelet activation / entrainment of circadian clock / positive regulation of hormone secretion / regulation of canonical Wnt signaling pathway / glutamate receptor signaling pathway / mast cell degranulation / phototransduction, visible light / photoreceptor outer segment / postsynaptic cytosol / cellular response to acidic pH / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / hormone-mediated signaling pathway / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / Turbulent (oscillatory, disturbed) flow shear stress activates signaling by PIEZO1 and integrins in endothelial cells / cellular response to forskolin / Peptide ligand-binding receptors / regulation of mitotic spindle organization / GTPase activator activity / chemokine-mediated signaling pathway / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / centriolar satellite / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / blood coagulation / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / G beta:gamma signalling through BTK / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Glucagon-type ligand receptors / GDP binding / Sensory perception of sweet, bitter, and umami (glutamate) taste / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / 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 / heterotrimeric G-protein complex / G alpha (12/13) signalling events / G-protein beta-subunit binding / Inactivation, recovery and regulation of the phototransduction cascade / extracellular vesicle / sensory perception of taste / sperm principal piece / Thrombin signalling through proteinase activated receptors (PARs) / adenylate cyclase-activating G protein-coupled receptor signaling pathway / signaling receptor complex adaptor activity / retina development in camera-type eye / GTPase binding / fibroblast proliferation / G protein activity / midbody / Ca2+ pathway / cell cortex / nuclear membrane / 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 / G alpha (q) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / Ras protein signal transduction Similarity search - Function | |||||||||
| Biological species | Homo sapiens (human)![]() synthetic construct (others) | |||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.07 Å | |||||||||
Authors | Shen, S. / Liu, H. / Xu, H.E. | |||||||||
| Funding support | China, 1items
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Citation | Journal: Cell Rep / Year: 2024Title: Structural basis for hormone recognition and distinctive Gq protein coupling by the kisspeptin receptor. Authors: Shiyi Shen / Dongxue Wang / Heng Liu / Xinheng He / Yinglong Cao / Juanhua Chen / Shujie Li / Xi Cheng / H Eric Xu / Jia Duan / ![]() Abstract: Kisspeptin signaling through its G protein-coupled receptor, KISS1R, plays an indispensable role in regulating reproduction via the hypothalamic-pituitary-gonadal axis. Dysregulation of this pathway ...Kisspeptin signaling through its G protein-coupled receptor, KISS1R, plays an indispensable role in regulating reproduction via the hypothalamic-pituitary-gonadal axis. Dysregulation of this pathway underlies severe disorders like infertility and precocious puberty. Here, we present cryo-EM structures of KISS1R bound to the endogenous agonist kisspeptin-10 and a synthetic analog TAK-448. These structures reveal pivotal interactions between peptide ligands and KISS1R extracellular loops for receptor activation. Both peptides exhibit a conserved binding mode, unveiling their common activation mechanism. Intriguingly, KISS1R displays a distinct 40° angular deviation in its intracellular TM6 region compared to other G-coupled receptors, enabling distinct interactions with G. This study reveals the molecular intricacies governing ligand binding and activation of KISS1R, while highlighting its exceptional ability to couple with G. Our findings pave the way for structure-guided design of therapeutics targeting this physiologically indispensable receptor. | |||||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8zje.cif.gz | 239.2 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8zje.ent.gz | 182.9 KB | Display | PDB format |
| PDBx/mmJSON format | 8zje.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/zj/8zje ftp://data.pdbj.org/pub/pdb/validation_reports/zj/8zje | HTTPS FTP |
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-Related structure data
| Related structure data | ![]() 60142MC ![]() 8zjdC M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
| #1: Protein | Mass: 41312.922 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: fusion protein of Guanine nucleotide-binding protein G(i) subunit alpha-1 and Guanine nucleotide-binding protein G(q) subunit alpha-q. Source: (gene. exp.) Homo sapiens (human) / Gene: GNAI1, GNAQ, GAQ / Production host: ![]() |
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| #2: Protein | Mass: 38744.371 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: ![]() |
| #3: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: ![]() |
-Protein / Antibody / Protein/peptide , 3 types, 3 molecules RSC
| #4: Protein | Mass: 42747.094 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: KISS1R, AXOR12, GPR54 / Production host: ![]() |
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| #5: Antibody | Mass: 26277.299 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
| #6: Protein/peptide | Mass: 1208.350 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others) |
-Details
| Has ligand of interest | N |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: cryo-EM structure of kisspeptin receptor in complex with G proteins Type: COMPLEX / Entity ID: #2-#5, #1 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo Sapiens (human) |
| Source (recombinant) | Organism: ![]() |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: DARK FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k) |
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Processing
| CTF correction | Type: NONE |
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| 3D reconstruction | Resolution: 3.07 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 111547 / Symmetry type: POINT |
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About Yorodumi




Homo sapiens (human)

China, 1items
Citation


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FIELD EMISSION GUN