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- PDB-7knu: CryoEM structure of the CGRP receptor with bound CGRP peptide in ... -
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Open data
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Basic information
Entry | Database: PDB / ID: 7knu | |||||||||||||||
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Title | CryoEM structure of the CGRP receptor with bound CGRP peptide in a detergent micelle | |||||||||||||||
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Function / homology | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |||||||||||||||
Biological species | ![]() ![]() | |||||||||||||||
Method | ![]() ![]() ![]() | |||||||||||||||
![]() | Belousoff, M.J. / Danev, R. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Structure and dynamics of the CGRP receptor in apo and peptide-bound forms. Authors: Tracy M Josephs / Matthew J Belousoff / Yi-Lynn Liang / Sarah J Piper / Jianjun Cao / Daniel J Garama / Katie Leach / Karen J Gregory / Arthur Christopoulos / Debbie L Hay / Radostin Danev / ...Authors: Tracy M Josephs / Matthew J Belousoff / Yi-Lynn Liang / Sarah J Piper / Jianjun Cao / Daniel J Garama / Katie Leach / Karen J Gregory / Arthur Christopoulos / Debbie L Hay / Radostin Danev / Denise Wootten / Patrick M Sexton / ![]() ![]() ![]() Abstract: G protein-coupled receptors (GPCRs) are key regulators of information transmission between cells and organs. Despite this, we have only limited understanding of the behavior of GPCRs in the apo state ...G protein-coupled receptors (GPCRs) are key regulators of information transmission between cells and organs. Despite this, we have only limited understanding of the behavior of GPCRs in the apo state and the conformational changes upon agonist binding that lead to G protein recruitment and activation. We expressed and purified unmodified apo and peptide-bound calcitonin gene-related peptide (CGRP) receptors to determine their cryo-EM structures and complemented these with analysis of protein conformational dynamics using hydrogen-deuterium exchange mass spectrometry (HDX-MS) and 3D variance analysis of the cryo-EM data. Together with our previously published structure of the active, Gs-bound, CGRP receptor complex, our work provides important insight into mechanisms of class B1 GPCR activation. | |||||||||||||||
Validation Report | ![]() ![]() ![]() | |||||||||||||||
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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PDBx/mmcif format | ![]() ![]() ![]() |
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PDB format | ![]() ![]() |
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-Related structure data
Related structure data | ![]() 22963CM ![]() 7kntC C: citing same article ( M: map data used to model this data |
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Similar-shape strucutres |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
#1: Protein | Mass: 17066.701 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
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#2: Protein/peptide | ![]() Mass: 3797.347 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() ![]() |
#3: Protein | Mass: 56274.520 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() ![]() |
-Experimental details
-Experiment
Experiment | Method: ![]() |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: ![]() |
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Sample preparation
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Molecular weight | Experimental value: NO | ||||||||||||||||||||||||
Source (natural) |
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Source (recombinant) | Organism: ![]() ![]() | ||||||||||||||||||||||||
Buffer solution | pH: 7.4 | ||||||||||||||||||||||||
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied![]() ![]() | ||||||||||||||||||||||||
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: TFS KRIOS |
Electron gun | Electron source![]() ![]() |
Electron lens | Mode: BRIGHT FIELD![]() |
Image recording | Electron dose: 57.3 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.18.2_3874: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction![]() | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction![]() | Resolution: 3.49 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 284400 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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