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- PDB-9auc: Human Amylin1 Receptor in Complex with Gs and human Calcitonin Ge... -
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Basic information
Entry | Database: PDB / ID: 9auc | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Title | Human Amylin1 Receptor in Complex with Gs and human Calcitonin Gene-Related Peptide | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() | MEMBRANE PROTEIN / Amylin receptor / GPCR / RAMP3 / Calcitonin Gene-Related Peptide | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Function / homology | ![]() nervous system process involved in regulation of systemic arterial blood pressure / calcitonin gene-related peptide binding / CGRP receptor complex / positive regulation of protein glycosylation / calcitonin binding / calcitonin family receptor activity / amylin receptor complex 1 / amylin receptor complex 2 / calcitonin family receptor signaling pathway / amylin receptor complex 3 ...nervous system process involved in regulation of systemic arterial blood pressure / calcitonin gene-related peptide binding / CGRP receptor complex / positive regulation of protein glycosylation / calcitonin binding / calcitonin family receptor activity / amylin receptor complex 1 / amylin receptor complex 2 / calcitonin family receptor signaling pathway / amylin receptor complex 3 / amylin receptor activity / calcitonin receptor activity / calcitonin gene-related peptide receptor signaling pathway / positive regulation of interleukin-1 alpha production / calcitonin gene-related peptide receptor activity / amylin receptor 3 signaling pathway / amylin receptor 2 signaling pathway / negative regulation of calcium ion transport into cytosol / positive regulation of macrophage differentiation / amylin receptor 1 signaling pathway / amylin receptor signaling pathway / Calcitonin-like ligand receptors / regulation of G protein-coupled receptor signaling pathway / G protein-coupled receptor internalization / vasculature development / endothelial cell proliferation / negative regulation of ossification / negative regulation of bone resorption / leukocyte cell-cell adhesion / negative regulation of osteoclast differentiation / response to amyloid-beta / positive regulation of cAMP/PKA signal transduction / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / regulation of cytosolic calcium ion concentration / D1 dopamine receptor binding / endothelial cell migration / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / cellular response to hormone stimulus / response to glucocorticoid / Hedgehog 'off' state / coreceptor activity / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / negative regulation of blood pressure / regulation of mRNA stability / regulation of insulin secretion / cellular response to glucagon stimulus / osteoclast differentiation / positive regulation of calcium-mediated signaling / adenylate cyclase activator activity / ossification / acrosomal vesicle / trans-Golgi network membrane / protein localization to plasma membrane / positive regulation of interleukin-8 production / intracellular protein transport / negative regulation of inflammatory response to antigenic stimulus / hormone activity / bone development / receptor internalization / regulation of blood pressure / G-protein beta/gamma-subunit complex binding / platelet aggregation / Olfactory Signaling Pathway / cognition / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / adenylate cyclase-activating G protein-coupled 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 / 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 / calcium ion transport / 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 / vasodilation / ADORA2B mediated anti-inflammatory cytokines production / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell Similarity search - Function | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Biological species | ![]() ![]() ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.4 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Cao, J. / Belousoff, M.J. / Wootten, D.L. / Sexton, P.M. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Funding support | ![]() ![]()
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![]() | ![]() Title: Cryo-EM Structure of the Human Amylin 1 Receptor in Complex with CGRP and Gs Protein. Authors: Jianjun Cao / Matthew J Belousoff / Radostin Danev / Arthur Christopoulos / Denise Wootten / Patrick M Sexton / ![]() ![]() Abstract: Inhibition of calcitonin gene-related peptide (CGRP) or its cognate CGRP receptor (CGRPR) has arisen as a major breakthrough in the treatment of migraine. However, a second CGRP-responsive receptor ...Inhibition of calcitonin gene-related peptide (CGRP) or its cognate CGRP receptor (CGRPR) has arisen as a major breakthrough in the treatment of migraine. However, a second CGRP-responsive receptor exists, the amylin (Amy) 1 receptor (AMYR), yet its involvement in the pathology of migraine is poorly understood. AMYR and CGRPR are heterodimers consisting of receptor activity-modifying protein 1 (RAMP1) with the calcitonin receptor (CTR) and the calcitonin receptor-like receptor (CLR), respectively. Here, we present the structure of AMYR in complex with CGRP and Gs protein and compare it with the reported structures of the AMYR complex with rat amylin (rAmy) and the CGRPR in complex with CGRP. Despite similar protein backbones observed within the receptors and the N- and C-termini of the two peptides bound to the AMYR complexes, they have distinct organization in the peptide midregions (the bypass motif) that is correlated with differences in the dynamics of the respective receptor extracellular domains. Moreover, divergent conformations of extracellular loop (ECL) 3, intracellular loop (ICL) 2, and ICL3 within the CTR and CLR protomers are evident when comparing the CGRP bound to the CGRPR and AMYR, which influences the binding mode of CGRP. However, the conserved interactions made by the C-terminus of CGRP to the CGRPR and AMYR are likely to account for cross-reactivity of nonpeptide CGRPR antagonists observed at AMYR, which also extends to other clinically used CGRPR blockers, including antibodies. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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PDBx/mmCIF format | ![]() | 280 KB | Display | ![]() |
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PDB format | ![]() | 215.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Arichive directory | ![]() ![]() | HTTPS FTP |
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-Related structure data
Related structure data | ![]() 43877MC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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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 , 2 types, 2 molecules ER
#5: Protein | Mass: 17066.701 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
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#7: Protein | Mass: 58469.594 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Antibody / Protein/peptide / Sugars , 3 types, 5 molecules NP

#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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#6: Protein/peptide | Mass: 3795.354 Da / Num. of mol.: 1 / Fragment: residues 83-119 / Source method: obtained synthetically / Source: (synth.) ![]() |
#9: Sugar |
-Non-polymers , 3 types, 23 molecules 




#8: Chemical | ChemComp-PLM / #10: Chemical | #11: Water | ChemComp-HOH / | |
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-Details
Has ligand of interest | Y |
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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: Human Amylin 1 Receptor in complex with Gs and human calcitonin gene-related peptide Type: COMPLEX / Entity ID: #1-#7 / Source: RECOMBINANT |
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Molecular weight | Experimental value: NO |
Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 7.4 |
Specimen | Conc.: 5.8 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Specimen support | Grid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3 |
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 / Nominal defocus max: 1500 nm / Nominal defocus min: 500 nm |
Image recording | Average exposure time: 16.12 sec. / Electron dose: 71.15 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 7049 |
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Processing
EM software | Name: PHENIX / Category: model 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: 247000 / Symmetry type: POINT |
Atomic model building | B value: 41 |