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Open data
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Basic information
Entry | Database: PDB / ID: 6p9x | ||||||||||||||||||
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Title | CRF1 Receptor Gs GPCR protein complex with CRF1 peptide | ||||||||||||||||||
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![]() | MEMBRANE PROTEIN / GPCR | ||||||||||||||||||
Function / homology | ![]() corticotropin-releasing hormone activity / positive regulation of digestive system process / positive regulation of corticosterone secretion / regulation of adenylate cyclase activity involved in G protein-coupled receptor signaling pathway / corticotropin-releasing hormone binding / positive regulation of circadian sleep/wake cycle, wakefulness / negative regulation of circadian sleep/wake cycle, REM sleep / regulation of corticosterone secretion / corticotrophin-releasing factor receptor activity / corticotropin-releasing hormone receptor activity ...corticotropin-releasing hormone activity / positive regulation of digestive system process / positive regulation of corticosterone secretion / regulation of adenylate cyclase activity involved in G protein-coupled receptor signaling pathway / corticotropin-releasing hormone binding / positive regulation of circadian sleep/wake cycle, wakefulness / negative regulation of circadian sleep/wake cycle, REM sleep / regulation of corticosterone secretion / corticotrophin-releasing factor receptor activity / corticotropin-releasing hormone receptor activity / corticotropin-releasing hormone receptor 2 binding / corticotropin secretion / positive regulation of corticotropin secretion / positive regulation of cortisol secretion / regulation of serotonin secretion / general adaptation syndrome, behavioral process / negative regulation of glucagon secretion / MECP2 regulates transcription of neuronal ligands / positive regulation of behavioral fear response / glucocorticoid biosynthetic process / negative regulation of norepinephrine secretion / parturition / hormone-mediated apoptotic signaling pathway / negative regulation of luteinizing hormone secretion / negative regulation of epinephrine secretion / monoatomic ion homeostasis / cellular response to corticotropin-releasing hormone stimulus / negative regulation of voltage-gated calcium channel activity / varicosity / behavioral response to ethanol / positive regulation of cAMP-mediated signaling / response to ether / fear response / neuropeptide hormone activity / synaptic transmission, dopaminergic / G protein-coupled peptide receptor activity / negative regulation of systemic arterial blood pressure / Class B/2 (Secretin family receptors) / regulation of NMDA receptor activity / cellular response to cocaine / diterpenoid metabolic process / exploration behavior / adrenal gland development / hypothalamus development / response to pain / response to aldosterone / response to corticosterone / positive regulation of calcium ion import / locomotory exploration behavior / positive regulation of insulin secretion involved in cellular response to glucose stimulus / associative learning / PKA activation in glucagon signalling / hair follicle placode formation / response to immobilization stress / mu-type opioid receptor binding / developmental growth / corticotropin-releasing hormone receptor 1 binding / intracellular transport / D1 dopamine receptor binding / Hedgehog 'off' state / beta-2 adrenergic receptor binding / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / adenylate cyclase activator activity / cellular response to dexamethasone stimulus / trans-Golgi network membrane / female pregnancy / long-term synaptic potentiation / ionotropic glutamate receptor binding / insulin-like growth factor receptor binding / lung development / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / bone development / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G-protein activation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / hormone activity / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / ADP signalling through P2Y purinoceptor 12 / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / platelet aggregation / Adrenaline,noradrenaline inhibits insulin secretion / Glucagon-type ligand receptors / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.91 Å | ||||||||||||||||||
![]() | Belousoff, M.J. / Liang, Y.L. / Sexton, P. / Danev, R. | ||||||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Toward a Structural Understanding of Class B GPCR Peptide Binding and Activation. Authors: Yi-Lynn Liang / Matthew J Belousoff / Peishen Zhao / Cassandra Koole / Madeleine M Fletcher / Tin T Truong / Villy Julita / George Christopoulos / H Eric Xu / Yan Zhang / Maryam Khoshouei / ...Authors: Yi-Lynn Liang / Matthew J Belousoff / Peishen Zhao / Cassandra Koole / Madeleine M Fletcher / Tin T Truong / Villy Julita / George Christopoulos / H Eric Xu / Yan Zhang / Maryam Khoshouei / Arthur Christopoulos / Radostin Danev / Patrick M Sexton / Denise Wootten / ![]() ![]() ![]() ![]() ![]() Abstract: Class B G protein-coupled receptors (GPCRs) are important therapeutic targets for major diseases. Here, we present structures of peptide and Gs-bound pituitary adenylate cyclase-activating peptide, ...Class B G protein-coupled receptors (GPCRs) are important therapeutic targets for major diseases. Here, we present structures of peptide and Gs-bound pituitary adenylate cyclase-activating peptide, PAC1 receptor, and corticotropin-releasing factor (CRF), (CRF1) receptor. Together with recently solved structures, these provide coverage of the major class B GPCR subfamilies. Diverse orientations of the extracellular domain to the receptor core in different receptors are at least partially dependent on evolutionary conservation in the structure and nature of peptide interactions. Differences in peptide interactions to the receptor core also influence the interlinked TM2-TM1-TM6/ECL3/TM7 domain, and this is likely important in their diverse signaling. However, common conformational reorganization of ECL2, linked to reorganization of ICL2, modulates G protein contacts. Comparison between receptors reveals ICL2 as a key domain forming dynamic G protein interactions in a receptor- and ligand-specific manner. This work advances our understanding of class B GPCR activation and Gs coupling. | ||||||||||||||||||
History |
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Structure visualization
Movie |
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 197.6 KB | Display | ![]() |
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PDB format | ![]() | 156 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1007.2 KB | Display | ![]() |
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Full document | ![]() | 1013.8 KB | Display | |
Data in XML | ![]() | 36.9 KB | Display | |
Data in CIF | ![]() | 57 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 20277MC ![]() 0993C ![]() 6p9yC M: map data used to model this data C: citing same article ( |
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Similar structure data | |
EM raw data | ![]() Data #1: Unaligned multi-frame gain-normalized movies in LZW compressed TIFF format [micrographs - multiframe]) |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
#1: Protein | Mass: 45700.418 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 38534.062 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#3: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Antibody / Protein / Protein/peptide / Non-polymers , 4 types, 20 molecules NRP![](data/chem/img/HOH.gif)
![](data/chem/img/HOH.gif)
#4: Antibody | Mass: 15140.742 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#5: Protein | Mass: 49392.109 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#6: Protein/peptide | Mass: 4764.481 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
#7: Water | ChemComp-HOH / |
-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
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) |
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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: ![]() |
Electron lens | Mode: BRIGHT FIELD / Cs: 2.7 mm |
Image recording | Average exposure time: 3.7 sec. / Electron dose: 1 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 |
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Processing
Software | Name: PHENIX / Version: 1.15.2_3472: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.91 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 516000 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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