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- EMDB-36323: Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound ... -

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Entry
Database: EMDB / ID: EMD-36323
TitleCryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound human GLP-1R-Gs complex
Map data
Sample
  • Complex: Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound human GLP-1R-Gs complex
    • Protein or peptide: Glucagon-like peptide 1 receptor
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • Protein or peptide: MEDI0382
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Nanobody 35
  • Ligand: N-hexadecanoyl-L-glutamic acid
KeywordsG protein-coupled receptor / ligand recognition / receptor activation / unimolecular dual agonist / STRUCTURAL PROTEIN
Function / homology
Function and homology information


glucagon-like peptide 1 receptor activity / glucagon receptor activity / hormone secretion / 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 ...glucagon-like peptide 1 receptor activity / glucagon receptor activity / hormone secretion / 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 / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Ca2+ pathway / G alpha (z) signalling events / post-translational protein targeting to membrane, translocation / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) 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 / G alpha (i) signalling events / G alpha (12/13) signalling events / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / alkylglycerophosphoethanolamine phosphodiesterase activity / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Thrombin signalling through proteinase activated receptors (PARs) / Ca2+ pathway / Extra-nuclear estrogen signaling / G alpha (z) signalling events / G alpha (s) signalling events / G alpha (q) signalling events / photoreceptor outer segment membrane / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / regulation of heart contraction / spectrin binding / Vasopressin regulates renal water homeostasis via Aquaporins / response to psychosocial stress / peptide hormone binding / photoreceptor outer segment / activation of adenylate cyclase activity / cardiac muscle cell apoptotic process / cAMP-mediated signaling / negative regulation of blood pressure / photoreceptor inner segment / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Glucagon-type ligand receptors / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / sensory perception of taste / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / transmembrane signaling receptor activity / heterotrimeric G-protein complex / signaling receptor complex adaptor activity / GTPase binding / retina development in camera-type eye / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / cellular response to hypoxia / cell body / 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 / synapse / protein-containing complex binding / membrane / plasma membrane / cytoplasm
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. / : / 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 ...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. / : / 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, 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 / 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. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
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 speciesHomo sapiens (human) / synthetic construct (others) / Rattus norvegicus (Norway rat) / Bos taurus (cattle) / Escherichia coli (E. coli)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.85 Å
AuthorsYang L / Zhou QT / Dai AT / Zhao FH / Chang RL / Ying TL / Wu BL / Yang DH / Wang MW / Cong ZT
Funding support China, 8 items
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)82273961 China
National Natural Science Foundation of China (NSFC)32200576 China
National Natural Science Foundation of China (NSFC)82273985 China
National Natural Science Foundation of China (NSFC)82121005 China
National Natural Science Foundation of China (NSFC)81973373 China
National Natural Science Foundation of China (NSFC)21704064 China
CitationJournal: Proc Natl Acad Sci U S A / Year: 2023
Title: Structural analysis of the dual agonism at GLP-1R and GCGR.
Authors: Yang Li / Qingtong Zhou / Antao Dai / Fenghui Zhao / Rulue Chang / Tianlei Ying / Beili Wu / Dehua Yang / Ming-Wei Wang / Zhaotong Cong /
Abstract: Glucagon-like peptide-1 receptor (GLP-1R) and glucagon receptor (GCGR), two members of class B1 G protein-coupled receptors, play important roles in glucose homeostasis and energy metabolism. They ...Glucagon-like peptide-1 receptor (GLP-1R) and glucagon receptor (GCGR), two members of class B1 G protein-coupled receptors, play important roles in glucose homeostasis and energy metabolism. They share a high degree of sequence homology but have different functionalities. Unimolecular dual agonists of both receptors developed recently displayed better clinical efficacies than that of monotherapy. To study the underlying molecular mechanisms, we determined high-resolution cryo-electron microscopy structures of GLP-1R or GCGR in complex with heterotrimeric G protein and three GLP-1R/GCGR dual agonists including peptide 15, MEDI0382 (cotadutide) and SAR425899 with variable activating profiles at GLP-1R versus GCGR. Compared with related structures reported previously and supported by our published pharmacological data, key residues responsible for ligand recognition and dual agonism were identified. Analyses of peptide conformational features revealed a difference in side chain orientations within the first three residues, indicating that distinct engagements in the deep binding pocket are required to achieve receptor selectivity. The middle region recognizes extracellular loop 1 (ECL1), ECL2, and the top of transmembrane helix 1 (TM1) resulting in specific conformational changes of both ligand and receptor, especially the dual agonists reshaped ECL1 conformation of GLP-1R relative to that of GCGR, suggesting an important role of ECL1 interaction in executing dual agonism. Structural investigation of lipid modification showed a better interaction between lipid moiety of MEDI0382 and TM1-TM2 cleft, in line with its increased potency at GCGR than SAR425899. Together, the results provide insightful information for the design and development of improved therapeutics targeting these two receptors simultaneously.
History
DepositionMay 27, 2023-
Header (metadata) releaseSep 6, 2023-
Map releaseSep 6, 2023-
UpdateSep 6, 2023-
Current statusSep 6, 2023Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_36323.png

Downloads & links

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Map

FileDownload / File: emd_36323.map.gz / Format: CCP4 / Size: 91.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
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AxesZ (Sec.)Y (Row.)X (Col.)
0.86 Å/pix.
x 288 pix.
= 247.68 Å		0.86 Å/pix.
x 288 pix.
= 247.68 Å		0.86 Å/pix.
x 288 pix.
= 247.68 Å

Surface

Projections

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.86 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.059
Minimum - Maximum-0.2608529 - 0.49593854
Average (Standard dev.)-0.00016633862 (±0.012584379)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions288288288
Spacing288288288
CellA=B=C: 247.68001 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_36323_half_map_1.map
Projections & Slices
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Half map: #1

Fileemd_36323_half_map_2.map
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Sample components

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Entire : Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound ...

EntireName: Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound human GLP-1R-Gs complex
Components
  • Complex: Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound human GLP-1R-Gs complex
    • Protein or peptide: Glucagon-like peptide 1 receptor
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • Protein or peptide: MEDI0382
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
    • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Protein or peptide: Nanobody 35
  • Ligand: N-hexadecanoyl-L-glutamic acid

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Supramolecule #1: Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound ...

SupramoleculeName: Cryo-EM structure of the GLP-1R/GCGR dual agonist MEDI0382-bound human GLP-1R-Gs complex
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Glucagon-like peptide 1 receptor

MacromoleculeName: Glucagon-like peptide 1 receptor / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 50.860801 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: RPQGATVSLW ETVQKWREYR RQCQRSLTED PPPATDLFCN RTFDEYACWP DGEPGSFVNV SCPWYLPWAS SVPQGHVYRF CTAEGLWLQ KDNSSLPWRD LSECEESKRG ERSSPEEQLL FLYIIYTVGY ALSFSALVIA SAILLGFRHL HCTRNYIHLN L FASFILRA ...String:
RPQGATVSLW ETVQKWREYR RQCQRSLTED PPPATDLFCN RTFDEYACWP DGEPGSFVNV SCPWYLPWAS SVPQGHVYRF CTAEGLWLQ KDNSSLPWRD LSECEESKRG ERSSPEEQLL FLYIIYTVGY ALSFSALVIA SAILLGFRHL HCTRNYIHLN L FASFILRA LSVFIKDAAL KWMYSTAAQQ HQWDGLLSYQ DSLSCRLVFL LMQYCVAANY YWLLVEGVYL YTLLAFSVLS EQ WIFRLYV SIGWGVPLLF VVPWGIVKYL YEDEGCWTRN SNMNYWLIIR LPILFAIGVN FLIFVRVICI VVSKLKANLM CKT DIKCRL AKSTLTLIPL LGTHEVIFAF VMDEHARGTL RFIKLFTELS FTSFQGLMVA ILYCFVNNEV QLEFRKSWER WRLE HLHIQ RDSSMKPLKC PTSSLSSGAT AGSSMYTATC QASCS

UniProtKB: Glucagon-like peptide 1 receptor

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Macromolecule #2: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

MacromoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
type: protein_or_peptide / ID: 2
Details: There is no an appropriate UniProt/GenBank entry for entity 2 because the protein sequence (P63092) was modified.
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 41.907516 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RATHRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...String:
MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RATHRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTSGIFETK FQVDKVNFHM FDVGAQRDER RKWIQCFNDV TAIIFVVDSS DYNRLQEALN DF KSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED YFPEFARYTT PEDATPEPGE DPRVTRAKYF IRDEFLRIST ASG DGRHYC YPHFTCSVDT ENIRRVFNDC RDIIQRMHLR QYELL

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Macromolecule #3: MEDI0382

MacromoleculeName: MEDI0382 / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 3.278431 KDa
SequenceString:
HSQGTFTSDK SEYLDSERAQ DFVAWLEAG

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Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Rattus norvegicus (Norway rat)
Molecular weightTheoretical: 37.915496 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...String:
MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWN

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

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Macromolecule #5: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Bos taurus (cattle)
Molecular weightTheoretical: 7.729947 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
ASNNTASIAQ ARKLVEQLKM EANIDRIKVS KAAADLMAYC EAHAKEDPLL TPVPASENPF REKKFFCAIL

UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

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Macromolecule #6: Nanobody 35

MacromoleculeName: Nanobody 35 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 15.343019 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MAQVQLQESG GGLVQPGGSL RLSCAASGFT FSNYKMNWVR QAPGKGLEWV SDISQSGASI SYTGSVKGRF TISRDNAKNT LYLQMNSLK PEDTAVYYCA RCPAPFTRDC FDVTSTTYAY RGQGTQVTVS SHHHHHHEPE A

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Macromolecule #7: N-hexadecanoyl-L-glutamic acid

MacromoleculeName: N-hexadecanoyl-L-glutamic acid / type: ligand / ID: 7 / Number of copies: 1 / Formula: D6M
Molecular weightTheoretical: 385.538 Da
Chemical component information

ChemComp-D6M:
N-hexadecanoyl-L-glutamic acid

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 80.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: OTHER
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.2 µm / Nominal defocus min: 1.2 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

6x18

Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.85 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 796065
Initial angle assignmentType: OTHER
Final angle assignmentType: OTHER

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