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Open data
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Basic information
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| Title | Cryo-EM structure of the g1:Ox-bound human GLP-1R-Gs complex | ||||||||||||||||||||||||||||||||||||
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Keywords | g1:Ox / MEMBRANE PROTEIN | ||||||||||||||||||||||||||||||||||||
| Function / homology | Function and homology informationadenylate cyclase-activating serotonin receptor signaling pathway / glucagon-like peptide 1 receptor activity / glucagon receptor activity / sensory perception of chemical stimulus / positive regulation of blood pressure / mu-type opioid receptor binding / hormone secretion / corticotropin-releasing hormone receptor 1 binding / post-translational protein targeting to membrane, translocation / G-protein activation ...adenylate cyclase-activating serotonin receptor signaling pathway / glucagon-like peptide 1 receptor activity / glucagon receptor activity / sensory perception of chemical stimulus / positive regulation of blood pressure / mu-type opioid receptor binding / hormone secretion / corticotropin-releasing hormone receptor 1 binding / post-translational protein targeting to membrane, translocation / 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 / beta-2 adrenergic receptor binding / 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 / 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 / photoreceptor outer segment membrane / G alpha (s) signalling events / G alpha (q) signalling events / spectrin binding / response to psychosocial stress / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / regulation of heart contraction / Vasopressin regulates renal water homeostasis via Aquaporins / alkylglycerophosphoethanolamine phosphodiesterase activity / peptide hormone binding / PKA activation in glucagon signalling / developmental growth / hair follicle placode formation / photoreceptor outer segment / D1 dopamine receptor binding / intracellular transport / vascular endothelial cell response to laminar fluid shear stress / adenylate cyclase inhibitor activity / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / positive regulation of protein localization to cell cortex / Adenylate cyclase inhibitory pathway / T cell migration / negative regulation of blood pressure / adenylate cyclase-activating adrenergic receptor signaling pathway / D2 dopamine receptor binding / response to prostaglandin E / insulin-like growth factor receptor binding / adenylate cyclase regulator activity / G protein-coupled serotonin receptor binding / adenylate cyclase-inhibiting serotonin receptor signaling pathway / cardiac muscle cell apoptotic process / photoreceptor inner segment / ionotropic glutamate receptor binding / cellular response to glucagon stimulus / regulation of insulin secretion / cellular response to forskolin / regulation of mitotic spindle organization / adenylate cyclase activator activity / trans-Golgi network membrane / Regulation of insulin secretion / negative regulation of inflammatory response to antigenic stimulus / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / G protein-coupled receptor binding / response to peptide hormone / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway Similarity search - Function | ||||||||||||||||||||||||||||||||||||
| Biological species | Homo sapiens (human) / ![]() ![]() ![]() | ||||||||||||||||||||||||||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 2.99 Å | ||||||||||||||||||||||||||||||||||||
Authors | Fan S / Li J / Zhuang J / Zhou Q / Mai Y / Lin B / Wang M-W / Wu C | ||||||||||||||||||||||||||||||||||||
| Funding support | China, 11 items
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Citation | Journal: J Am Chem Soc / Year: 2025Title: Disulfide-Directed Multicyclic Peptides with N-Terminally Extendable α-Helices for Recognition and Activation of G Protein-Coupled Receptors. Authors: Shihui Fan / Jie Li / Jie Zhuang / Qingtong Zhou / Yiting Mai / Bingni Lin / Ming-Wei Wang / Chuanliu Wu / ![]() Abstract: Many peptide hormones adopt long α-helical structures upon interacting with their cognate receptors but often exhibit flexible conformations when unbound. Strategies that can stabilize long α- ...Many peptide hormones adopt long α-helical structures upon interacting with their cognate receptors but often exhibit flexible conformations when unbound. Strategies that can stabilize long α-helices without disrupting their binding to receptors are still lacking, which hinders progress in their biological applications and drug development. Here, we present an approach that combines rational design with library screening to create and identify a unique disulfide-directed multicyclic peptide (DDMP) scaffold, which could effectively stabilize N-terminally extendable α-helices while displaying exceptional efficiency in disulfide pairing and oxidative folding. This DDMP scaffold was then utilized for stabilizing the α-helical structure of glucagon-like peptide-1 (GLP-1), resulting in a potent GLP-1 receptor (GLP-1R) agonist with a significantly improved α-helicity and proteolytic stability. By incorporating external α-helices into the DDMP scaffold, we can effectively preserve the native N-terminal α-helical structures while allowing for extensive evolution of the C-terminal disulfide-rich domain for enhancing target binding, as demonstrated by the generation of the DDMP-stabilized GLP-1 (g1:Ox). The cryo-electron microscopy structure of the g1:Ox-GLP-1R in complex with heterotrimeric G reveals the molecular basis for the potent binding between g1:Ox and GLP-1R. Specifically, the DDMP moiety establishes additional interactions with the extracellular domain of GLP-1R, which are absent in the case of GLP-1. Thus, this work offers a novel and effective approach for engineering therapeutic peptides and other peptide α-helices, ensuring that both the N- and C-terminal regions remain essential for target recognition and activation. | ||||||||||||||||||||||||||||||||||||
| History |
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_61077.map.gz | 118 MB | EMDB map data format | |
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| Header (meta data) | emd-61077-v30.xml emd-61077.xml | 24.7 KB 24.7 KB | Display Display | EMDB header |
| FSC (resolution estimation) | emd_61077_fsc.xml | 10.5 KB | Display | FSC data file |
| Images | emd_61077.png | 68.2 KB | ||
| Filedesc metadata | emd-61077.cif.gz | 7.2 KB | ||
| Others | emd_61077_half_map_1.map.gz emd_61077_half_map_2.map.gz | 115.9 MB 115.9 MB | ||
| Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-61077 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-61077 | HTTPS FTP |
-Validation report
| Summary document | emd_61077_validation.pdf.gz | 780.6 KB | Display | EMDB validaton report |
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| Full document | emd_61077_full_validation.pdf.gz | 780.1 KB | Display | |
| Data in XML | emd_61077_validation.xml.gz | 19.1 KB | Display | |
| Data in CIF | emd_61077_validation.cif.gz | 24.6 KB | Display | |
| Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-61077 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-61077 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 9j1pMC ![]() 9j5fC ![]() 9j5hC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_61077.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 1.071 Å | ||||||||||||||||||||||||||||||||||||
| Density |
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #2
| File | emd_61077_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #1
| File | emd_61077_half_map_2.map | ||||||||||||
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Sample components
-Entire : Cryo-EM structure of the g1 Ox-bound human GLP-1R-Gs complex
| Entire | Name: Cryo-EM structure of the g1 Ox-bound human GLP-1R-Gs complex |
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| Components |
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-Supramolecule #1: Cryo-EM structure of the g1 Ox-bound human GLP-1R-Gs complex
| Supramolecule | Name: Cryo-EM structure of the g1 Ox-bound human GLP-1R-Gs complex type: complex / ID: 1 / Parent: 0 / Macromolecule list: all |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine n...
| Macromolecule | Name: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short,Guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 41.879465 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: 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 ENARRIFNDC RDIIQRMHLR QYELL UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(i) subunit alpha-1, ...UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas |
-Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
| Macromolecule | Name: 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 |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 37.915496 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: 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 |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
| Macromolecule | Name: 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 |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 7.729947 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: ASNNTASIAQ ARKLVEQLKM EANIDRIKVS KAAADLMAYC EAHAKEDPLL TPVPASENPF REKKFFCAIL UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #4: Nanobody-35
| Macromolecule | Name: Nanobody-35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: ![]() |
| Molecular weight | Theoretical: 15.343019 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: MAQVQLQESG GGLVQPGGSL RLSCAASGFT FSNYKMNWVR QAPGKGLEWV SDISQSGASI SYTGSVKGRF TISRDNAKNT LYLQMNSLK PEDTAVYYCA RCPAPFTRDC FDVTSTTYAY RGQGTQVTVS SHHHHHHEPE A |
-Macromolecule #5: g1:Ox
| Macromolecule | Name: g1:Ox / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: synthetic construct (others) |
| Molecular weight | Theoretical: 5.109745 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: HAEGTFTSDV SSYLEGQAAK CFIAWLINCP GECVPGSACP DVCTNTCPL |
-Macromolecule #6: Glucagon-like peptide 1 receptor
| Macromolecule | Name: Glucagon-like peptide 1 receptor / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 50.860801 KDa |
| Recombinant expression | Organism: ![]() |
| Sequence | String: 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 |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | TFS KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 80.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: OTHER |
| Electron optics | Illumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
China, 11 items
Citation























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