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- PDB-6uus: CryoEM Structure of the active Adrenomedullin 2 receptor G protei... -
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Open data
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Basic information
Entry | Database: PDB / ID: 6uus | ||||||||||||||||||
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Title | CryoEM Structure of the active Adrenomedullin 2 receptor G protein complex with adrenomedullin peptide | ||||||||||||||||||
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![]() | MEMBRANE PROTEIN / GPCR / adrenomedullin 2 receptor complex | ||||||||||||||||||
Function / homology | ![]() adrenomedullin receptor binding / positive regulation of progesterone biosynthetic process / cross-receptor inhibition within G protein-coupled receptor heterodimer / G protein-coupled receptor signaling pathway involved in heart process / adrenomedullin binding / CGRP receptor complex / cellular response to sucrose stimulus / adrenomedullin receptor activity / adrenomedullin receptor complex / neuron projection regeneration ...adrenomedullin receptor binding / positive regulation of progesterone biosynthetic process / cross-receptor inhibition within G protein-coupled receptor heterodimer / G protein-coupled receptor signaling pathway involved in heart process / adrenomedullin binding / CGRP receptor complex / cellular response to sucrose stimulus / adrenomedullin receptor activity / adrenomedullin receptor complex / neuron projection regeneration / vascular associated smooth muscle cell development / amylin receptor complex 3 / adrenomedullin receptor signaling pathway / amylin receptor activity / calcitonin receptor activity / calcitonin gene-related peptide receptor signaling pathway / vascular associated smooth muscle cell proliferation / amylin receptor 3 signaling pathway / calcitonin gene-related peptide receptor activity / amylin receptor signaling pathway / branching involved in labyrinthine layer morphogenesis / regulation of systemic arterial blood pressure / positive regulation of vasculogenesis / Calcitonin-like ligand receptors / response to ether / regulation of the force of heart contraction / regulation of urine volume / G protein-coupled receptor internalization / negative regulation of vascular permeability / negative regulation of vasoconstriction / positive regulation of receptor recycling / response to starvation / positive regulation of cAMP/PKA signal transduction / odontogenesis of dentin-containing tooth / response to amyloid-beta / PKA activation in glucagon signalling / androgen metabolic process / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / animal organ regeneration / renal water homeostasis / vasculogenesis / Hedgehog 'off' state / positive regulation of heart rate / response to glucocorticoid / cAMP-mediated signaling / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / cellular response to hormone stimulus / coreceptor activity / positive regulation of vascular associated smooth muscle cell proliferation / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / positive regulation of calcium-mediated signaling / trans-Golgi network membrane / protein localization to plasma membrane / female pregnancy / positive regulation of protein localization to plasma membrane / intracellular protein transport / neural tube closure / response to insulin / negative regulation of inflammatory response to antigenic stimulus / cellular response to estradiol stimulus / G protein-coupled receptor activity / bone development / hormone activity / receptor internalization / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / platelet aggregation / cognition / 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 / adenylate cyclase-activating G protein-coupled receptor signaling pathway / 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 / Sensory perception of sweet, bitter, and umami (glutamate) taste / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / positive regulation of angiogenesis / calcium ion transport / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / ADORA2B mediated anti-inflammatory cytokines production Similarity search - Function | ||||||||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.4 Å | ||||||||||||||||||
![]() | Belousoff, M.J. / Liang, Y.L. / Sexton, P. / Danev, R. | ||||||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Structure and Dynamics of Adrenomedullin Receptors AM and AM Reveal Key Mechanisms in the Control of Receptor Phenotype by Receptor Activity-Modifying Proteins. Authors: Yi-Lynn Liang / Matthew J Belousoff / Madeleine M Fletcher / Xin Zhang / Maryam Khoshouei / Giuseppe Deganutti / Cassandra Koole / Sebastian G B Furness / Laurence J Miller / Debbie L Hay / ...Authors: Yi-Lynn Liang / Matthew J Belousoff / Madeleine M Fletcher / Xin Zhang / Maryam Khoshouei / Giuseppe Deganutti / Cassandra Koole / Sebastian G B Furness / Laurence J Miller / Debbie L Hay / Arthur Christopoulos / Christopher A Reynolds / Radostin Danev / Denise Wootten / Patrick M Sexton / ![]() ![]() ![]() ![]() ![]() ![]() ![]() Abstract: Adrenomedullin (AM) and calcitonin gene-related peptide (CGRP) receptors are critically important for metabolism, vascular tone, and inflammatory response. AM receptors are also required for normal ...Adrenomedullin (AM) and calcitonin gene-related peptide (CGRP) receptors are critically important for metabolism, vascular tone, and inflammatory response. AM receptors are also required for normal lymphatic and blood vascular development and angiogenesis. They play a pivotal role in embryo implantation and fertility and can provide protection against hypoxic and oxidative stress. CGRP and AM receptors are heterodimers of the calcitonin receptor-like receptor (CLR) and receptor activity-modifying protein 1 (RAMP1) (CGRPR), as well as RAMP2 or RAMP3 (AMR and AMR, respectively). However, the mechanistic basis for RAMP modulation of CLR phenotype is unclear. In this study, we report the cryo-EM structure of the AMR in complex with AM and Gs at a global resolution of 3.0 Å, and structures of the AMR in complex with either AM or intermedin/adrenomedullin 2 (AM2) and Gs at 2.4 and 2.3 Å, respectively. The structures reveal distinctions in the primary orientation of the extracellular domains (ECDs) relative to the receptor core and distinct positioning of extracellular loop 3 (ECL3) that are receptor-dependent. Analysis of dynamic data present in the cryo-EM micrographs revealed additional distinctions in the extent of mobility of the ECDs. Chimeric exchange of the linker region of the RAMPs connecting the TM helix and the ECD supports a role for this segment in controlling receptor phenotype. Moreover, a subset of the motions of the ECD appeared coordinated with motions of the G protein relative to the receptor core, suggesting that receptor ECD dynamics could influence G protein interactions. This work provides fundamental advances in our understanding of GPCR function and how this can be allosterically modulated by accessory proteins. | ||||||||||||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 230.6 KB | Display | ![]() |
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PDB format | ![]() | 174.3 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 46.7 KB | Display | |
Data in CIF | ![]() | 70 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 20901MC ![]() 6uunC ![]() 6uvaC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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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: 45683.434 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.) ![]() ![]() |
-Protein , 3 types, 3 molecules PRE
#5: Protein | Mass: 6038.813 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
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#6: Protein | Mass: 56274.520 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
#7: Protein | Mass: 16896.650 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Antibody , 1 types, 1 molecules N
#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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-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
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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 | Conc.: 4 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Specimen support | Details: unspecified | ||||||||||||||||||||||||||||||
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 |
Image recording | Electron dose: 68 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
Software | Name: PHENIX / Version: 1.18rc1_3777: / Classification: refinement | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
Symmetry | Point symmetry: C1 (asymmetric) | ||||||||||||||||||||||||
3D reconstruction | Resolution: 2.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 521000 / Symmetry type: POINT | ||||||||||||||||||||||||
Refine LS restraints |
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