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Yorodumi- EMDB-31494: Cryo-EM structure of the cholecystokinin receptor CCKBR in comple... -
+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-31494 | |||||||||||||||||||||||||||||||||
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Title | Cryo-EM structure of the cholecystokinin receptor CCKBR in complex with gastrin-17 and Gq | |||||||||||||||||||||||||||||||||
Map data | CCKBR-Gq complex | |||||||||||||||||||||||||||||||||
Sample |
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Function / homology | Function and homology information gastrin receptor activity / type B gastrin/cholecystokinin receptor binding / gland development / cholecystokinin receptor activity / cholecystokinin signaling pathway / gastric acid secretion / pH reduction / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / PLC beta mediated events ...gastrin receptor activity / type B gastrin/cholecystokinin receptor binding / gland development / cholecystokinin receptor activity / cholecystokinin signaling pathway / gastric acid secretion / pH reduction / Fatty Acids bound to GPR40 (FFAR1) regulate insulin secretion / Acetylcholine regulates insulin secretion / PLC beta mediated events / phospholipase C-activating dopamine receptor signaling pathway / entrainment of circadian clock / regulation of platelet activation / 1-phosphatidylinositol-3-kinase regulator activity / phototransduction, visible light / digestive tract development / Gastrin-CREB signalling pathway via PKC and MAPK / regulation of canonical Wnt signaling pathway / glutamate receptor signaling pathway / action potential / peptide hormone binding / photoreceptor outer segment / GTPase activator activity / Peptide ligand-binding receptors / G protein-coupled receptor binding / negative regulation of protein kinase activity / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating 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 / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / 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 / blood coagulation / 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 / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / fibroblast proliferation / G alpha (s) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / nuclear membrane / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / cell surface receptor signaling pathway / protein stabilization / G protein-coupled receptor signaling pathway / lysosomal membrane / intracellular membrane-bounded organelle / GTPase activity / positive regulation of cell population proliferation / synapse / protein-containing complex binding / GTP binding / Golgi apparatus / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||||||||||||||||||||||||||
Biological species | Homo sapiens (human) | |||||||||||||||||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.1 Å | |||||||||||||||||||||||||||||||||
Authors | Zhang X / He C / Wang M / Zhou Q / Yang D / Zhu Y / Wu B / Zhao Q | |||||||||||||||||||||||||||||||||
Funding support | China, 10 items
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Citation | Journal: Nat Chem Biol / Year: 2021 Title: Structures of the human cholecystokinin receptors bound to agonists and antagonists. Authors: Xuefeng Zhang / Chenglin He / Mu Wang / Qingtong Zhou / Dehua Yang / Ya Zhu / Wenbo Feng / Hui Zhang / Antao Dai / Xiaojing Chu / Jia Wang / Zhenlin Yang / Yi Jiang / Ulrich Sensfuss / ...Authors: Xuefeng Zhang / Chenglin He / Mu Wang / Qingtong Zhou / Dehua Yang / Ya Zhu / Wenbo Feng / Hui Zhang / Antao Dai / Xiaojing Chu / Jia Wang / Zhenlin Yang / Yi Jiang / Ulrich Sensfuss / Qiuxiang Tan / Shuo Han / Steffen Reedtz-Runge / H Eric Xu / Suwen Zhao / Ming-Wei Wang / Beili Wu / Qiang Zhao / Abstract: Cholecystokinin receptors, CCKR and CCKR, are important neurointestinal peptide hormone receptors and play a vital role in food intake and appetite regulation. Here, we report three crystal ...Cholecystokinin receptors, CCKR and CCKR, are important neurointestinal peptide hormone receptors and play a vital role in food intake and appetite regulation. Here, we report three crystal structures of the human CCKR in complex with different ligands, including one peptide agonist and two small-molecule antagonists, as well as two cryo-electron microscopy structures of CCKR-gastrin in complex with G and G, respectively. These structures reveal the recognition pattern of different ligand types and the molecular basis of peptide selectivity in the cholecystokinin receptor family. By comparing receptor structures in different conformational states, a stepwise activation process of cholecystokinin receptors is proposed. Combined with pharmacological data, our results provide atomic details for differential ligand recognition and receptor activation mechanisms. These insights will facilitate the discovery of potential therapeutics targeting cholecystokinin receptors. | |||||||||||||||||||||||||||||||||
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_31494.map.gz | 5.4 MB | EMDB map data format | |
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Header (meta data) | emd-31494-v30.xml emd-31494.xml | 20.8 KB 20.8 KB | Display Display | EMDB header |
Images | emd_31494.png | 116.3 KB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-31494 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-31494 | HTTPS FTP |
-Validation report
Summary document | emd_31494_validation.pdf.gz | 328.7 KB | Display | EMDB validaton report |
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Full document | emd_31494_full_validation.pdf.gz | 328.2 KB | Display | |
Data in XML | emd_31494_validation.xml.gz | 6 KB | Display | |
Data in CIF | emd_31494_validation.cif.gz | 6.8 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31494 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-31494 | HTTPS FTP |
-Related structure data
Related structure data | 7f8wMC 7f8uC 7f8vC 7f8xC 7f8yC C: citing same article (ref.) M: atomic model generated by this map |
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Similar structure data |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_31494.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Annotation | CCKBR-Gq complex | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 1.045 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
CCP4 map header:
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-Supplemental data
-Sample components
+Entire : Cholecystokinin recetor CCKBR in complex with gastrin-17 and Gq
+Supramolecule #1: Cholecystokinin recetor CCKBR in complex with gastrin-17 and Gq
+Supramolecule #2: Guanine nucleotide-binding protein G subunits
+Supramolecule #3: scFv16
+Supramolecule #4: Gastrin-17
+Supramolecule #5: cholecystokinin type B receptor
+Macromolecule #1: Guanine nucleotide-binding protein G(q) subunit alpha
+Macromolecule #2: 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 #4: scFv16
+Macromolecule #5: Gastrin-17
+Macromolecule #6: Gastrin/cholecystokinin type B receptor
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 7.5 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 1.75 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELD |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 354647 |
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Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |