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- PDB-7duq: Cryo-EM structure of the compound 2 and GLP-1-bound human GLP-1 r... -

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Basic information

Entry
Database: PDB / ID: 7duq
TitleCryo-EM structure of the compound 2 and GLP-1-bound human GLP-1 receptor-Gs complex
Components
  • (Glucagon-like peptide ...) x 2
  • (Guanine nucleotide-binding protein ...) x 3
  • Nanobody-35Single-domain antibody
KeywordsBIOSYNTHETIC PROTEIN / Glucagon-like peptide-1 receptor / Glucagon-like peptide-1 / Ago-allosteric modulator / Type 2 diabetes / Compound 2 / Class B GPCR
Function / homology
Function and homology information


glucagon receptor binding / 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 ...glucagon receptor binding / 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 / negative regulation of execution phase of apoptosis / 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 / feeding behavior / 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 / 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 / cellular response to glucagon stimulus / positive regulation of calcium ion import / positive regulation of insulin secretion involved in cellular response to glucose stimulus / PKA activation in glucagon signalling / peptide hormone binding / regulation of insulin secretion / cAMP-mediated signaling / hair follicle placode formation / intracellular transport / photoreceptor outer segment / D1 dopamine receptor binding / developmental growth / Synthesis, secretion, and deacylation of Ghrelin / Hedgehog 'off' state / positive regulation of cAMP-mediated signaling / adenylate cyclase-activating adrenergic receptor signaling pathway / protein kinase A signaling / positive regulation of gluconeogenesis / cardiac muscle cell apoptotic process / activation of adenylate cyclase activity / photoreceptor inner segment / adenylate cyclase activator activity / negative regulation of blood pressure / trans-Golgi network membrane / response to activity / positive regulation of peptidyl-threonine phosphorylation / gluconeogenesis / G-protein beta/gamma-subunit complex binding / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / bone development / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / adenylate cyclase-activating G protein-coupled receptor signaling pathway / hormone activity / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / platelet aggregation / Glucagon-type ligand receptors / cognition / Vasopressin regulates renal water homeostasis via Aquaporins / positive regulation of GTPase activity
Similarity search - Function
Glucagon / : / GPCR, family 2, glucagon-like peptide-1 receptor / Glucagon/GIP/secretin/VIP / Peptide hormone / Glucagon / GIP / secretin / VIP family signature. / Glucagon like hormones / GPCR, family 2, glucagon-like peptide-1/glucagon receptor / G-protein coupled receptors family 2 signature 1. / Hormone receptor domain ...Glucagon / : / GPCR, family 2, glucagon-like peptide-1 receptor / Glucagon/GIP/secretin/VIP / Peptide hormone / Glucagon / GIP / secretin / VIP family signature. / Glucagon like hormones / 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
CHOLESTEROL / N-tert-butyl-6,7-bis(chloranyl)quinoxalin-2-amine / Pro-glucagon / Glucagon-like peptide 1 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 (cattle)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.5 Å
AuthorsCong, Z. / Chen, L. / Ma, H. / Zhou, Q. / Zou, X. / Ye, C. / Dai, A. / Liu, Q. / Huang, W. / Sun, X. ...Cong, Z. / Chen, L. / Ma, H. / Zhou, Q. / Zou, X. / Ye, C. / Dai, A. / Liu, Q. / Huang, W. / Sun, X. / Wang, X. / Xu, P. / Zhao, L. / Xia, T. / Zhong, W. / Yang, D. / Xu, H.E. / Zhang, Y. / Wang, M.
CitationJournal: Nat Commun / Year: 2021
Title: Molecular insights into ago-allosteric modulation of the human glucagon-like peptide-1 receptor.
Authors: Zhaotong Cong / Li-Nan Chen / Honglei Ma / Qingtong Zhou / Xinyu Zou / Chenyu Ye / Antao Dai / Qing Liu / Wei Huang / Xianqiang Sun / Xi Wang / Peiyu Xu / Lihua Zhao / Tian Xia / Wenge Zhong ...Authors: Zhaotong Cong / Li-Nan Chen / Honglei Ma / Qingtong Zhou / Xinyu Zou / Chenyu Ye / Antao Dai / Qing Liu / Wei Huang / Xianqiang Sun / Xi Wang / Peiyu Xu / Lihua Zhao / Tian Xia / Wenge Zhong / Dehua Yang / H Eric Xu / Yan Zhang / Ming-Wei Wang /
Abstract: The glucagon-like peptide-1 (GLP-1) receptor is a validated drug target for metabolic disorders. Ago-allosteric modulators are capable of acting both as agonists on their own and as efficacy ...The glucagon-like peptide-1 (GLP-1) receptor is a validated drug target for metabolic disorders. Ago-allosteric modulators are capable of acting both as agonists on their own and as efficacy enhancers of orthosteric ligands. However, the molecular details of ago-allosterism remain elusive. Here, we report three cryo-electron microscopy structures of GLP-1R bound to (i) compound 2 (an ago-allosteric modulator); (ii) compound 2 and GLP-1; and (iii) compound 2 and LY3502970 (a small molecule agonist), all in complex with heterotrimeric G. The structures reveal that compound 2 is covalently bonded to C347 at the cytoplasmic end of TM6 and triggers its outward movement in cooperation with the ECD whose N terminus penetrates into the GLP-1 binding site. This allows compound 2 to execute positive allosteric modulation through enhancement of both agonist binding and G protein coupling. Our findings offer insights into the structural basis of ago-allosterism at GLP-1R and may aid the design of better therapeutics.
History
DepositionJan 11, 2021Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Jul 14, 2021Provider: repository / Type: Initial release

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Structure visualization

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Assembly

Deposited unit
P: Glucagon-like peptide 1
R: Glucagon-like peptide 1 receptor
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
hetero molecules


Theoretical massNumber of molelcules
Total (without water)163,81214
Polymers160,8356
Non-polymers2,9778
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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Glucagon-like peptide ... , 2 types, 2 molecules PR

#1: Protein/peptide Glucagon-like peptide 1 / Glucagon-like peptide-1


Mass: 3302.648 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P01275
#2: Protein Glucagon-like peptide 1 receptor / Glucagon-like peptide-1 receptor / GLP-1R


Mass: 50860.801 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

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

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


Mass: 45683.434 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GNAS, GNAS1, GSP / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63092
#4: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37915.496 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
#5: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7729.947 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 , 1 types, 1 molecules N

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


Mass: 15343.019 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 2 types, 8 molecules

#7: Chemical ChemComp-HNO / N-tert-butyl-6,7-bis(chloranyl)quinoxalin-2-amine


Mass: 270.158 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C12H13Cl2N3 / Feature type: SUBJECT OF INVESTIGATION
#8: Chemical
ChemComp-CLR / CHOLESTEROL / Cholesterol


Mass: 386.654 Da / Num. of mol.: 7 / Source method: obtained synthetically / Formula: C27H46O

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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

Component
IDNameTypeEntity IDParent-IDSource
1Cryo-EM structure of the compound 2 and GLP-1-bound human GLP-1 receptor-Gs complexCOMPLEX#1-#60MULTIPLE SOURCES
2Guanine nucleotide-binding proteinCOMPLEX#3-#51RECOMBINANT
3Nanobody-35Single-domain antibodyCOMPLEX#61SYNTHETIC
4Glucagon-like peptide 1 receptorGlucagon-like peptide-1 receptorCOMPLEX#21RECOMBINANT
5Glucagon-like peptide 1Glucagon-like peptide-1COMPLEX#11SYNTHETIC
Molecular weightUnits: MEGADALTONS / Experimental value: YES
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Homo sapiens (human)9606
22Rattus norvegicus (Norway rat)10116
32Bos taurus (cattle)9913
43synthetic construct (others)32630
54Homo sapiens (human)9606
65Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
12Spodoptera frugiperda (fall armyworm)7108
24Spodoptera frugiperda (fall armyworm)7108
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: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELDBright-field microscopy
Image recordingElectron dose: 80 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.16_3549: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 614978 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0069836
ELECTRON MICROSCOPYf_angle_d0.72713373
ELECTRON MICROSCOPYf_dihedral_angle_d12.1025753
ELECTRON MICROSCOPYf_chiral_restr0.0471490
ELECTRON MICROSCOPYf_plane_restr0.0051658

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