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- PDB-9blw: Human amylin1 Receptor in complex with Gs and Cagrilintide backbo... -

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Basic information

Entry
Database: PDB / ID: 9blw
TitleHuman amylin1 Receptor in complex with Gs and Cagrilintide backbone (non-acylated)
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Cagrilintide backbone (non-acylated)
  • Calcitonin receptor
  • Nanobody 35
  • Receptor activity-modifying protein 1
KeywordsMEMBRANE PROTEIN / obesity / GPCR / calcitonin receptor / amylin receptor / receptor activity-modifying protein
Function / homology
Function and homology information


calcitonin gene-related peptide binding / CGRP receptor complex / : / 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 gene-related peptide binding / CGRP receptor complex / : / 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 / calcitonin gene-related peptide receptor activity / amylin receptor 3 signaling pathway / amylin receptor 2 signaling pathway / amylin receptor 1 signaling pathway / amylin receptor signaling pathway / Calcitonin-like ligand receptors / regulation of G protein-coupled receptor signaling pathway / negative regulation of ossification / response to amyloid-beta / positive regulation of cAMP/PKA signal transduction / PKA activation in glucagon signalling / developmental growth / hair follicle placode formation / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / cellular response to hormone stimulus / coreceptor activity / adenylate cyclase-activating adrenergic receptor signaling pathway / regulation of mRNA stability / cellular response to glucagon stimulus / acrosomal vesicle / regulation of insulin secretion / positive regulation of calcium-mediated signaling / ossification / response to glucocorticoid / osteoclast differentiation / adenylate cyclase activator activity / trans-Golgi network membrane / protein localization to plasma membrane / intracellular protein transport / negative regulation of inflammatory response to antigenic stimulus / bone development / receptor internalization / platelet aggregation / G-protein beta/gamma-subunit complex binding / cognition / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / 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 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / calcium ion transport / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / sensory perception of smell / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / 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 / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / protein transport / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / positive regulation of cold-induced thermogenesis / amyloid-beta binding / retina development in camera-type eye / G protein activity / positive regulation of cytosolic calcium ion concentration / GTPase binding
Similarity search - Function
GPCR, family 2, calcitonin receptor / Receptor activity modifying protein / RAMP domain superfamily / Receptor activity modifying family / GPCR, family 2, calcitonin receptor family / G-protein coupled receptors family 2 signature 1. / : / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors ...GPCR, family 2, calcitonin receptor / Receptor activity modifying protein / RAMP domain superfamily / Receptor activity modifying family / GPCR, family 2, calcitonin receptor family / G-protein coupled receptors family 2 signature 1. / : / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / Hormone receptor domain / GPCR family 2, extracellular hormone receptor domain superfamily / G-protein coupled receptors family 2 signature 2. / GPCR, family 2, secretin-like, conserved site / GPCR, family 2, secretin-like / 7 transmembrane receptor (Secretin family) / GPCR, family 2-like / G-protein coupled receptors family 2 profile 2. / G-protein alpha subunit, group S / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / G protein beta WD-40 repeat protein / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Receptor activity-modifying protein 1 / Calcitonin receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human)
Lama glama (llama)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsCao, J. / Belousoff, M.J. / Sexton, P.M. / Wootten, D.L.
Funding support Australia, 5items
OrganizationGrant numberCountry
National Health and Medical Research Council (NHMRC, Australia)1154434 Australia
National Health and Medical Research Council (NHMRC, Australia)2025694 Australia
National Health and Medical Research Council (NHMRC, Australia)1155302 Australia
National Health and Medical Research Council (NHMRC, Australia)2026300 Australia
Australian Research Council (ARC)IC200100052 Australia
CitationJournal: Nat Commun / Year: 2025
Title: Structural and dynamic features of cagrilintide binding to calcitonin and amylin receptors.
Authors: Jianjun Cao / Matthew J Belousoff / Rachel M Johnson / Peter Keov / Zamara Mariam / Giuseppe Deganutti / George Christopoulos / Caroline A Hick / Steffen Reedtz-Runge / Tine Glendorf / Borja ...Authors: Jianjun Cao / Matthew J Belousoff / Rachel M Johnson / Peter Keov / Zamara Mariam / Giuseppe Deganutti / George Christopoulos / Caroline A Hick / Steffen Reedtz-Runge / Tine Glendorf / Borja Ballarín-González / Kirsten Raun / Charles Bayly-Jones / Denise Wootten / Patrick M Sexton /
Abstract: Obesity is a major and increasingly prevalent chronic metabolic disease with numerous comorbidities. While recent incretin-based therapies have provided pharmaceutical inroads into treatment of ...Obesity is a major and increasingly prevalent chronic metabolic disease with numerous comorbidities. While recent incretin-based therapies have provided pharmaceutical inroads into treatment of obesity, there remains an ongoing need for additional medicines with distinct modes of action as independent or complementary therapeutics. Among the most promising candidates, supported by phase 1 and 2 clinical trials, is cagrilintide, a long-acting amylin and calcitonin receptor agonist. As such, understanding how cagrilintide functionally engages target receptors is critical for future development of this target class. Here, we determine structures of cagrilintide bound to Gs-coupled, active, amylin receptors (AMYR, AMYR, AMYR) and calcitonin receptor (CTR) and compare cagrilintide interactions and the dynamics of receptor complexes with previously reported structures of receptors bound to rat amylin, salmon calcitonin or recently developed amylin-based peptides. These data reveal that cagrilintide has an amylin-like binding mode but, compared to other peptides, induces distinct conformational dynamics at calcitonin-family receptors that could contribute to its clinical efficacy.
History
DepositionMay 1, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 16, 2025Provider: repository / Type: Initial release
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
N: Nanobody 35
E: Receptor activity-modifying protein 1
P: Cagrilintide backbone (non-acylated)
R: Calcitonin receptor
hetero molecules


Theoretical massNumber of molelcules
Total (without water)182,2808
Polymers182,0597
Non-polymers2211
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG

#1: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


Mass: 45699.434 Da / Num. of mol.: 1
Mutation: S54N, G226A, E268A, N271K, K274D, R280K, T284D, I285T, A366S
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P63092
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 38534.062 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P62873
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7861.143 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P59768

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Protein , 2 types, 2 molecules ER

#5: Protein Receptor activity-modifying protein 1 / Calcitonin-receptor-like receptor activity-modifying protein 1 / CRLR activity-modifying protein 1


Mass: 17066.701 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RAMP1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: O60894
#7: Protein Calcitonin receptor / CT-R


Mass: 53796.309 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CALCR / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P30988

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Antibody / Protein/peptide / Sugars , 3 types, 3 molecules NP

#4: Antibody Nanobody 35


Mass: 15140.742 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Lama glama (llama) / Production host: Escherichia coli (E. coli)
#6: Protein/peptide Cagrilintide backbone (non-acylated)


Mass: 3960.437 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)
#8: Sugar ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0

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Details

Has ligand of interestY
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human amylin1 Receptor in complex with Gs and Cagrilintide backbone (non-acylated)
Type: COMPLEX / Entity ID: #1-#5, #7 / Source: MULTIPLE SOURCES
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Trichoplusia ni (cabbage looper)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 300 divisions/in. / Grid type: UltrAuFoil R1.2/1.3
VitrificationCryogen name: ETHANE / Humidity: 100 %

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Electron microscopy imaging

MicroscopyModel: TFS GLACIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1100 nm / Nominal defocus min: 600 nm / C2 aperture diameter: 50 µm
Specimen holderCryogen: NITROGEN
Image recordingAverage exposure time: 7.91 sec. / Electron dose: 50 e/Å2 / Film or detector model: FEI FALCON IV (4k x 4k)

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Processing

EM software
IDNameVersionCategory
1crYOLOparticle selection
7VMDmodel fitting
13PHENIX1.2model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 133219
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 133219 / Symmetry type: POINT
Atomic model buildingB value: 97
Atomic model buildingPDB-ID: 7TYF

7tyf


Accession code: 7TYF / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00210198
ELECTRON MICROSCOPYf_angle_d0.43713845
ELECTRON MICROSCOPYf_dihedral_angle_d3.5511383
ELECTRON MICROSCOPYf_chiral_restr0.0391537
ELECTRON MICROSCOPYf_plane_restr0.0041768

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