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- PDB-7fim: Cryo-EM structure of the tirzepatide (LY3298176)-bound human GLP-... -

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Basic information

Entry
Database: PDB / ID: 7fim
TitleCryo-EM structure of the tirzepatide (LY3298176)-bound human GLP-1R-Gs complex
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,human glucagon like peptide 1 receptor
  • Nanobody-35Single-domain antibody
  • Tirzepatide
KeywordsSTRUCTURAL PROTEIN / Cryo-electron microscopy / G protein-coupled receptor / ligand recognition / receptor activation / unimolecular agonist
Function / homology
Function and homology information


glucagon-like peptide 1 receptor activity / glucagon receptor activity / sensory perception of chemical stimulus / mu-type opioid receptor binding / hormone secretion / corticotropin-releasing hormone receptor 1 binding / positive regulation of blood pressure / G-protein activation / Activation of the phototransduction cascade / : ...glucagon-like peptide 1 receptor activity / glucagon receptor activity / sensory perception of chemical stimulus / mu-type opioid receptor binding / hormone secretion / corticotropin-releasing hormone receptor 1 binding / positive regulation of blood pressure / G-protein activation / Activation of the phototransduction cascade / : / Glucagon-type ligand receptors / Thromboxane signalling through TP receptor / Sensory perception of sweet, bitter, and umami (glutamate) taste / G beta:gamma signalling through PI3Kgamma / G beta:gamma signalling through CDC42 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Activation of G protein gated Potassium channels / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (z) signalling events / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / post-translational protein targeting to membrane, translocation / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Glucagon-type ligand receptors / alkylglycerophosphoethanolamine phosphodiesterase activity / Adrenaline,noradrenaline inhibits insulin secretion / G alpha (12/13) signalling events / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thrombin signalling through proteinase activated receptors (PARs) / Ca2+ pathway / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / regulation of heart contraction / beta-2 adrenergic receptor binding / G alpha (q) signalling events / photoreceptor outer segment membrane / response to psychosocial stress / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / spectrin binding / Vasopressin regulates renal water homeostasis via Aquaporins / peptide hormone binding / cAMP-mediated signaling / photoreceptor outer segment / D1 dopamine receptor binding / positive regulation of cAMP-mediated signaling / adenylate cyclase-activating adrenergic receptor signaling pathway / cardiac muscle cell apoptotic process / ionotropic glutamate receptor binding / insulin-like growth factor receptor binding / activation of adenylate cyclase activity / photoreceptor inner segment / adenylate cyclase activator activity / negative regulation of blood pressure / G-protein beta/gamma-subunit complex binding / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Glucagon-type ligand receptors / positive regulation of GTPase activity / cellular response to catecholamine stimulus / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / sensory perception of taste / G-protein beta-subunit binding / heterotrimeric G-protein complex / transmembrane signaling receptor activity / signaling receptor complex adaptor activity / retina development in camera-type eye / GTPase binding / cell body / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / cellular response to hypoxia / G alpha (s) signalling events / cell population proliferation / learning or memory / cell surface receptor signaling pathway / G protein-coupled receptor signaling pathway / GTPase activity / dendrite / protein-containing complex binding
Similarity search - Function
: / GPCR, family 2, glucagon-like peptide-1 receptor / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / G-protein coupled receptors family 2 signature 1. / Hormone receptor domain / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / GPCR family 2, extracellular hormone receptor domain superfamily / G-protein coupled receptors family 2 signature 2. ...: / GPCR, family 2, glucagon-like peptide-1 receptor / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / G-protein coupled receptors family 2 signature 1. / Hormone receptor domain / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. / Domain present in hormone receptors / 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 / G-alpha domain profile. / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / GGL domain / G-protein gamma-like domain superfamily / G-protein gamma-like domain / GGL domain / G protein gamma subunit-like motifs / 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. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Glucagon-like peptide 1 receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Similarity search - Component
Biological speciessynthetic construct (others)
Rattus norvegicus (Norway rat)
Bos taurus (cattle)
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsZhao, F.H. / Zhou, Q.T. / Cong, Z.T. / Hang, K.N. / Zou, X.Y. / Zhang, C. / Chen, Y. / Dai, A.T. / Liang, A.Y. / Ming, Q.Q. ...Zhao, F.H. / Zhou, Q.T. / Cong, Z.T. / Hang, K.N. / Zou, X.Y. / Zhang, C. / Chen, Y. / Dai, A.T. / Liang, A.Y. / Ming, Q.Q. / Wang, M. / Chen, L.N. / Xu, P.Y. / Chang, R.L. / Feng, W.B. / Xia, T. / Zhang, Y. / Wu, B.L. / Yang, D.H. / Zhao, L.H. / Xu, H.E. / Wang, M.W.
Funding support China, 7items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)81872915 China
National Natural Science Foundation of China (NSFC)82073904 China
National Natural Science Foundation of China (NSFC)32071203 China
National Natural Science Foundation of China (NSFC)81922071 China
National Natural Science Foundation of China (NSFC)81773792 China
National Natural Science Foundation of China (NSFC)81973373 China
National Natural Science Foundation of China (NSFC)21704064 China
CitationJournal: Nat Commun / Year: 2022
Title: Structural insights into multiplexed pharmacological actions of tirzepatide and peptide 20 at the GIP, GLP-1 or glucagon receptors.
Authors: Fenghui Zhao / Qingtong Zhou / Zhaotong Cong / Kaini Hang / Xinyu Zou / Chao Zhang / Yan Chen / Antao Dai / Anyi Liang / Qianqian Ming / Mu Wang / Li-Nan Chen / Peiyu Xu / Rulve Chang / ...Authors: Fenghui Zhao / Qingtong Zhou / Zhaotong Cong / Kaini Hang / Xinyu Zou / Chao Zhang / Yan Chen / Antao Dai / Anyi Liang / Qianqian Ming / Mu Wang / Li-Nan Chen / Peiyu Xu / Rulve Chang / Wenbo Feng / Tian Xia / Yan Zhang / Beili Wu / Dehua Yang / Lihua Zhao / H Eric Xu / Ming-Wei Wang /
Abstract: Glucose homeostasis, regulated by glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1) and glucagon (GCG) is critical to human health. Several multi-targeting agonists ...Glucose homeostasis, regulated by glucose-dependent insulinotropic polypeptide (GIP), glucagon-like peptide-1 (GLP-1) and glucagon (GCG) is critical to human health. Several multi-targeting agonists at GIPR, GLP-1R or GCGR, developed to maximize metabolic benefits with reduced side-effects, are in clinical trials to treat type 2 diabetes and obesity. To elucidate the molecular mechanisms by which tirzepatide, a GIPR/GLP-1R dual agonist, and peptide 20, a GIPR/GLP-1R/GCGR triagonist, manifest their multiplexed pharmacological actions over monoagonists such as semaglutide, we determine cryo-electron microscopy structures of tirzepatide-bound GIPR and GLP-1R as well as peptide 20-bound GIPR, GLP-1R and GCGR. The structures reveal both common and unique features for the dual and triple agonism by illustrating key interactions of clinical relevance at the near-atomic level. Retention of glucagon function is required to achieve such an advantage over GLP-1 monotherapy. Our findings provide valuable insights into the structural basis of functional versatility of tirzepatide and peptide 20.
History
DepositionJul 31, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Mar 2, 2022Provider: repository / Type: Initial release
Revision 1.1Mar 16, 2022Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_PubMed / _citation_author.name

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Structure visualization

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Assembly

Deposited unit
N: Nanobody-35
B: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
A: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
R: Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,human glucagon like peptide 1 receptor
G: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
P: Tirzepatide


Theoretical massNumber of molelcules
Total (without water)180,5976
Polymers180,5976
Non-polymers00
Water0
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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

#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 39221.090 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: Gnb1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P54311
#3: Protein Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Adenylate cyclase-stimulating G alpha protein


Mass: 45743.441 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bos taurus (cattle) / Gene: GNAS, GNAS1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P04896
#5: 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.) Bos taurus (cattle) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63212

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Antibody / Protein / Protein/peptide , 3 types, 3 molecules NRP

#1: Antibody Nanobody-35 / Single-domain antibody


Mass: 15343.019 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli)
#4: Protein Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,Glucagon-like peptide 1 receptor,human glucagon like peptide 1 receptor / GLP-1 receptor / GLP-1-R / GLP-1R


Mass: 68355.688 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GLP1R / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P43220
#6: Protein/peptide Tirzepatide /


Mass: 4072.530 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human)

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Details

Has ligand of interestY

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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: Cryo-EM structure of the human glucagon like peptide 1 receptor in complex with tirzepatide and G protein
Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: OTHER / Accelerating voltage: 300 kV / Illumination mode: OTHER
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 80 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.4 Å / Resolution method: DIFFRACTION PATTERN/LAYERLINES / Num. of particles: 125391 / Symmetry type: POINT

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