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- EMDB-31676: Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-b... -

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Entry
Database: EMDB / ID: EMD-31676
TitleCryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-bound human GCGR-Gs complex
Map data
Sample
  • Complex: Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-bound human GCGR-Gs complex
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • 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
    • Protein or peptide: Peptide 20
    • Protein or peptide: Glucagon receptor
  • Ligand: N-hexadecanoyl-L-glutamic acid
Function / homology
Function and homology information


regulation of glycogen metabolic process / glucagon receptor activity / 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 ...regulation of glycogen metabolic process / glucagon receptor activity / 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 / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / G alpha (i) signalling events / 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 / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / Ca2+ pathway / Thrombin signalling through proteinase activated receptors (PARs) / G alpha (z) signalling events / Extra-nuclear estrogen signaling / G alpha (s) signalling events / photoreceptor outer segment membrane / G alpha (q) signalling events / G alpha (i) signalling events / spectrin binding / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / response to starvation / alkylglycerophosphoethanolamine phosphodiesterase activity / exocytosis / peptide hormone binding / PKA activation in glucagon signalling / hair follicle placode formation / photoreceptor outer segment / developmental growth / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / Hedgehog 'off' state / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / hormone-mediated signaling pathway / photoreceptor inner segment / cardiac muscle cell apoptotic process / response to nutrient / regulation of insulin secretion / cellular response to glucagon stimulus / adenylate cyclase activator activity / guanyl-nucleotide exchange factor activity / cellular response to starvation / trans-Golgi network membrane / generation of precursor metabolites and energy / negative regulation of inflammatory response to antigenic stimulus / bone development / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / regulation of blood pressure / G-protein beta/gamma-subunit complex binding / platelet aggregation / cognition / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / Glucagon-type ligand receptors / 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 / ADORA2B mediated anti-inflammatory cytokines production / adenylate cyclase-activating dopamine receptor signaling pathway / sensory perception of smell / GPER1 signaling / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / glucose homeostasis / heterotrimeric G-protein complex / sensory perception of taste
Similarity search - Function
GPCR, family 2, glucagon 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, glucagon 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 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 / 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 / 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
Glucagon receptor / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Similarity search - Component
Biological speciesHomo sapiens (human) / Rattus norvegicus (Norway rat) / Bos taurus (domestic cattle) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsZhao F / Zhou QT / Cong ZT / Hang KN / Zou XY / Zhang C / Chen Y / Dai AT / Liang AY / Ming QQ ...Zhao F / Zhou QT / Cong ZT / Hang KN / Zou XY / Zhang C / Chen Y / Dai AT / Liang AY / Ming QQ / Wang M / Chen LN / Xu PY / Chang RL / Feng WB / Xia T / Zhang Y / Wu BL / Yang DH / Zhao LH / Xu HE / Wang MW
Funding support China, 7 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)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)81922071 (Y.Z.), 81773792 (D.Y.), 81973373 (D.Y.) and 21704064 (Q.Z.); National Science and Technology Major 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
DepositionAug 10, 2021-
Header (metadata) releaseMar 2, 2022-
Map releaseMar 2, 2022-
UpdateMar 16, 2022-
Current statusMar 16, 2022Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.4
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.4
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7v35
  • Surface level: 0.4
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_31676.png

Downloads & links

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Map

FileDownload / File: emd_31676.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 256 pix.
= 274.176 Å		1.07 Å/pix.
x 256 pix.
= 274.176 Å		1.07 Å/pix.
x 256 pix.
= 274.176 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.071 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.225 / Movie #1: 0.4
Minimum - Maximum-4.148223 - 5.537652
Average (Standard dev.)-0.0011905296 (±0.082822226)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 274.176 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0711.0711.071
M x/y/z256256256
origin x/y/z0.0000.0000.000
length x/y/z274.176274.176274.176
α/β/γ90.00090.00090.000
start NX/NY/NZ535455
NX/NY/NZ134138134
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS256256256
D min/max/mean-4.1485.538-0.001

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Supplemental data

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Sample components

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Entire : Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-b...

EntireName: Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-bound human GCGR-Gs complex
Components
  • Complex: Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-bound human GCGR-Gs complex
    • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
    • 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
    • Protein or peptide: Peptide 20
    • Protein or peptide: Glucagon receptor
  • Ligand: N-hexadecanoyl-L-glutamic acid

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Supramolecule #1: Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-b...

SupramoleculeName: Cryo-EM structure of the GIPR/GLP-1R/GCGR triagonist peptide 20-bound human GCGR-Gs complex
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)

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Macromolecule #1: 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: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 45.683434 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...String:
MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQA DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL

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Macromolecule #2: 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: 2 / 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

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Macromolecule #3: 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: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Bos taurus (domestic cattle)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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Macromolecule #4: Nanobody-35

MacromoleculeName: Nanobody-35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
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 #5: Peptide 20

MacromoleculeName: Peptide 20 / type: protein_or_peptide / ID: 5
Details: At positon of C10 attached PL2=K(gE-C16), lysine with a gamaE-C16 acyl which is attached through the side chain amine. And there is a NH2 at the C terminus of the peptide.
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 4.180502 KDa
SequenceString:
H(AIB)QGTFTSDK SKYLDERAAQ DFVQWLLDGG PSSGAPPPS

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Macromolecule #6: Glucagon receptor

MacromoleculeName: Glucagon receptor / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 46.741363 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: QVMDFLFEKW KLYGDQCHHN LSLLPPPTEL VCNRTFDKYS CWPDTPANTT ANISCPWYLP WHHKVQHRFV FKRCGPDGQW VRGPRGQPW RDASQCQMDG EEIEVQKEVA KMYSSFQVMY TVGYSLSLGA LLLALAILGG LSKLHCTRNA IHANLFASFV L KASSVLVI ...String:
QVMDFLFEKW KLYGDQCHHN LSLLPPPTEL VCNRTFDKYS CWPDTPANTT ANISCPWYLP WHHKVQHRFV FKRCGPDGQW VRGPRGQPW RDASQCQMDG EEIEVQKEVA KMYSSFQVMY TVGYSLSLGA LLLALAILGG LSKLHCTRNA IHANLFASFV L KASSVLVI DGLLRTRYSQ KIGDDLSVST WLSDGAVAGC RVAAVFMQYG IVANYCWLLV EGLYLHNLLG LATLPERSFF SL YLGIGWG APMLFVVPWA VVKCLFENVQ CWTSNDNMGF WWILRFPVFL AILINFFIFV RIVQLLVAKL RARQMHHTDY KFR LAKSTL TLIPLLGVHE VVFAFVTDEH AQGTLRSAKL FFDLFLSSFQ GLLVAVLYCF LNKEVQSELR RRWHRWRLGK VLWE ERNTS N

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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
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:

6lmk

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: DIFFRACTION PATTERN/LAYERLINES / Number images used: 383657
Initial angle assignmentType: OTHER
Final angle assignmentType: OTHER

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