+
Open data
-
Basic information
| Entry | Database: PDB / ID: 9b5y | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Title | Cryo-EM structure of the LAPTH-bound PTH1R in complex with Gq | |||||||||||||||||||||
Components |
| |||||||||||||||||||||
Keywords | SIGNALING PROTEIN / GPCR / PTH1R / Membrane protein | |||||||||||||||||||||
| Function / homology | Function and homology informationOlfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Prostacyclin signalling through prostacyclin receptor ...Olfactory Signaling Pathway / Activation of the phototransduction cascade / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through CDC42 / Glucagon signaling in metabolic regulation / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / ADP signalling through P2Y purinoceptor 12 / photoreceptor disc membrane / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / Inactivation, recovery and regulation of the phototransduction cascade / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / G alpha (12/13) signalling events / sensory perception of taste / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / retina development in camera-type eye / GTPase binding / Ca2+ pathway / fibroblast proliferation / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / Extra-nuclear estrogen signaling / cell population proliferation / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / plasma membrane / cytoplasm / cytosol Similarity search - Function | |||||||||||||||||||||
| Biological species | Homo sapiens (human)![]() | |||||||||||||||||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.49 Å | |||||||||||||||||||||
Authors | Zhang, X. / Liu, H. / Zhang, C. / Vilardaga, J.-P. | |||||||||||||||||||||
| Funding support | United States, 3items
| |||||||||||||||||||||
Citation | Journal: Proc Natl Acad Sci U S A / Year: 2025Title: Allosteric mechanism in the distinctive coupling of G and G to the parathyroid hormone type 1 receptor. Authors: Xuan Zhang / Ji Young Lee / Jonathan Pacheco / Ieva Sutkeviciute / Anju Krishnan Anitha / Heng Liu / Stephanie Singh / Carlos Ventura / Sofya Savransky / Ashok Khatri / Cheng Zhang / Ivet ...Authors: Xuan Zhang / Ji Young Lee / Jonathan Pacheco / Ieva Sutkeviciute / Anju Krishnan Anitha / Heng Liu / Stephanie Singh / Carlos Ventura / Sofya Savransky / Ashok Khatri / Cheng Zhang / Ivet Bahar / Jean-Pierre Vilardaga / ![]() Abstract: The mechanism determining the preferential stimulation of one heterotrimeric G protein signaling pathway over another by a ligand remains undetermined. By reporting the cryogenic electron microscopy ...The mechanism determining the preferential stimulation of one heterotrimeric G protein signaling pathway over another by a ligand remains undetermined. By reporting the cryogenic electron microscopy (cryo-EM) structure of the parathyroid hormone (PTH) type 1 receptor (PTH1R) complexed with Gq and comparing its allosteric dynamics with that of PTH1R in complex with G, we uncover a mechanism underlying such preferences. We show that an allosteric coupling between the ligand PTH and the C-terminal helix α5 of the Gα subunit controls the stability of the PTH1R complex with the specific G protein, G or G. Single-cell-level experiments further validate the G protein-selective effects of the PTH binding pose by demonstrating the differential, G protein-dependent residence times and affinity of this ligand at the PTH1R binding site. The findings deepen our understanding of the selective coupling of PTH1R to G or G and how it relates to the stability and kinetics of ligand binding. They explain the observed variability in the ligand-binding affinity of a GPCR when coupled to different G proteins. | |||||||||||||||||||||
| History |
|
-
Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
|---|
-
Downloads & links
-
Download
| PDBx/mmCIF format | 9b5y.cif.gz | 218.4 KB | Display | PDBx/mmCIF format |
|---|---|---|---|---|
| PDB format | pdb9b5y.ent.gz | 160.2 KB | Display | PDB format |
| PDBx/mmJSON format | 9b5y.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9b5y_validation.pdf.gz | 1.2 MB | Display | wwPDB validaton report |
|---|---|---|---|---|
| Full document | 9b5y_full_validation.pdf.gz | 1.2 MB | Display | |
| Data in XML | 9b5y_validation.xml.gz | 43.1 KB | Display | |
| Data in CIF | 9b5y_validation.cif.gz | 63 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/b5/9b5y ftp://data.pdbj.org/pub/pdb/validation_reports/b5/9b5y | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 44229MC M: map data used to model this data C: citing same article ( |
|---|---|
| Similar structure data | Similarity search - Function & homology F&H Search |
-
Links
-
Assembly
| Deposited unit | ![]()
|
|---|---|
| 1 |
|
-
Components
-Guanine nucleotide-binding protein ... , 3 types, 3 molecules ABG
| #2: Protein | Mass: 41238.883 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNAQ / Production host: ![]() |
|---|---|
| #4: Protein | Mass: 38744.371 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNB1 / Production host: ![]() |
| #6: Protein | Mass: 7861.143 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: GNG2 / Production host: ![]() |
-Protein / Protein/peptide / Antibody , 3 types, 3 molecules RLN
| #1: Protein | Mass: 78275.008 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: PTH1R / Production host: ![]() |
|---|---|
| #3: Protein/peptide | Mass: 4274.027 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human)Production host: ![]() |
| #5: Antibody | Mass: 28634.797 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() |
-Details
| Has protein modification | Y |
|---|
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
|---|---|
| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
-
Sample preparation
| Component | Name: LAPTH-PTH1R-Gq complex / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT |
|---|---|
| Molecular weight | Experimental value: NO |
| Source (natural) | Organism: ![]() |
| Source (recombinant) | Organism: Baculovirus expression vector pFastBac1-HM |
| Buffer solution | pH: 7.5 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Vitrification | Cryogen name: ETHANE |
-
Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
|---|---|
| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 1000 nm |
| Image recording | Electron dose: 55 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
-
Processing
| EM software | Name: PHENIX / Category: model refinement | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3D reconstruction | Resolution: 3.49 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 129318 / Symmetry type: POINT | ||||||||||||||||||||||||
| Refine LS restraints |
|
Movie
Controller
About Yorodumi




Homo sapiens (human)

United States, 3items
Citation
PDBj





















Baculovirus expression vector pFastBac1-HM
FIELD EMISSION GUN