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- PDB-9jr2: Cryo-EM structure of PTH-PTH1R-Gq (upright state) -

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Basic information

Entry
Database: PDB / ID: 9jr2
TitleCryo-EM structure of PTH-PTH1R-Gq (upright state)
Components
  • (Guanine nucleotide-binding protein ...) x 3
  • Parathyroid hormone
  • Parathyroid hormone/parathyroid hormone-related peptide receptor
  • scFv16
KeywordsSIGNALING PROTEIN/IMMUNE SYSTEM / Class B GPCRs / Gq / PTH / SIGNALING PROTEIN / SIGNALING PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


macromolecule biosynthetic process / parathyroid hormone receptor binding / type 1 parathyroid hormone receptor binding / negative regulation of bone mineralization involved in bone maturation / positive regulation of osteoclast proliferation / negative regulation of apoptotic process in bone marrow cell / response to parathyroid hormone / positive regulation of cell proliferation in bone marrow / hormone-mediated apoptotic signaling pathway / parathyroid hormone receptor activity ...macromolecule biosynthetic process / parathyroid hormone receptor binding / type 1 parathyroid hormone receptor binding / negative regulation of bone mineralization involved in bone maturation / positive regulation of osteoclast proliferation / negative regulation of apoptotic process in bone marrow cell / response to parathyroid hormone / positive regulation of cell proliferation in bone marrow / hormone-mediated apoptotic signaling pathway / parathyroid hormone receptor activity / magnesium ion homeostasis / positive regulation of signal transduction / response to fibroblast growth factor / cAMP metabolic process / phosphate ion homeostasis / 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 / Class B/2 (Secretin family receptors) / Vasopressin regulates renal water homeostasis via Aquaporins / G protein-coupled peptide receptor activity / negative regulation of chondrocyte differentiation / Adrenaline,noradrenaline inhibits insulin secretion / ADP signalling through P2Y purinoceptor 12 / G alpha (q) signalling events / osteoblast development / response to vitamin D / 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 / positive regulation of inositol phosphate biosynthetic process / peptide hormone receptor binding / spectrin binding / 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 / Vasopressin regulates renal water homeostasis via Aquaporins / bone mineralization / alkylglycerophosphoethanolamine phosphodiesterase activity / peptide hormone binding / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / photoreceptor outer segment / chondrocyte differentiation / positive regulation of glycogen biosynthetic process / bone resorption / response to cadmium ion / positive regulation of bone mineralization / cell maturation / Rho protein signal transduction / cardiac muscle cell apoptotic process / photoreceptor inner segment / homeostasis of number of cells within a tissue / skeletal system development / positive regulation of D-glucose import / hormone activity / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / response to lead ion / adenylate cyclase-activating G protein-coupled receptor signaling pathway / intracellular calcium ion homeostasis / cellular response to catecholamine stimulus / adenylate cyclase-activating dopamine receptor signaling pathway / cellular response to prostaglandin E stimulus / G-protein beta-subunit binding / heterotrimeric G-protein complex / cell-cell signaling / sensory perception of taste / signaling receptor complex adaptor activity
Similarity search - Function
Parathyroid hormone / Parathyroid hormone/parathyroid hormone-related protein / Parathyroid hormone family / Parathyroid hormone family signature. / Parathyroid hormone / GPCR, family 2, parathyroid hormone receptor / G-protein coupled receptors family 2 signature 1. / : / GPCR, family 2, extracellular hormone receptor domain / G-protein coupled receptors family 2 profile 1. ...Parathyroid hormone / Parathyroid hormone/parathyroid hormone-related protein / Parathyroid hormone family / Parathyroid hormone family signature. / Parathyroid hormone / GPCR, family 2, parathyroid hormone 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 / G protein beta WD-40 repeat protein / 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. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
Parathyroid hormone / 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 / Parathyroid hormone/parathyroid hormone-related peptide receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
Rattus rattus (black rat)
Bos taurus (domestic cattle)
Mus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsSano, F.K. / Hirano, H. / Itoh, Y. / Nureki, O.
Funding support Japan, 1items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS) Japan
CitationJournal: Nat Chem Biol / Year: 2025
Title: Insights into G-protein coupling preference from cryo-EM structures of G-bound PTH1R.
Authors: Fumiya K Sano / Kota Shimizume / Kazuhiro Kobayashi / Toshikuni Awazu / Kouki Kawakami / Hiroaki Akasaka / Takaaki A Kobayashi / Tatsuki Tanaka / Hiroyuki H Okamoto / Hisato Hirano / Tsukasa ...Authors: Fumiya K Sano / Kota Shimizume / Kazuhiro Kobayashi / Toshikuni Awazu / Kouki Kawakami / Hiroaki Akasaka / Takaaki A Kobayashi / Tatsuki Tanaka / Hiroyuki H Okamoto / Hisato Hirano / Tsukasa Kusakizako / Wataru Shihoya / Yoshiaki Kise / Yuzuru Itoh / Ryuichiro Ishitani / Yasushi Okada / Yasushi Sako / Masataka Yanagawa / Asuka Inoue / Osamu Nureki /
Abstract: The parathyroid hormone type 1 receptor (PTH1R) is a prototypical class B1 G-protein-coupled receptor that couples to both G and G, having a crucial role in calcium homeostasis and serving as a ...The parathyroid hormone type 1 receptor (PTH1R) is a prototypical class B1 G-protein-coupled receptor that couples to both G and G, having a crucial role in calcium homeostasis and serving as a therapeutic target for osteoporosis. Therapies targeting PTH1R face challenges because of G-associated prolonged signaling, which leads to bone resorption. To address this, selective activation of G signaling is desirable. However, the structural basis of G-mediated signaling remains unclear, limiting the development of signal-selective drugs. Here, we present cryo-electron microscopy structures of the PTH1R-G complex in two distinct extracellular conformations, demonstrating the role of N-linked glycans at N176 in stabilizing the ligand-tilted conformation. Comparison with a G-bound PTH1R structure highlights the role of key interactions involving both the C terminus of Gα and the receptor's intracellular loop 2 in G signaling. These structural insights provide a foundation for understanding the molecular mechanisms of PTH1R signaling.
History
DepositionSep 29, 2024Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 16, 2024Provider: repository / Type: Initial release
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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Guanine nucleotide-binding protein G(q) subunit alpha-1 (miniGq)
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
S: scFv16
P: Parathyroid hormone
R: Parathyroid hormone/parathyroid hormone-related peptide receptor


Theoretical massNumber of molelcules
Total (without water)168,8606
Polymers168,8606
Non-polymers00
Water181
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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

#1: Protein Guanine nucleotide-binding protein G(q) subunit alpha-1 (miniGq)


Mass: 27953.635 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Production host: Spodoptera frugiperda (fall armyworm)
#2: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Transducin beta chain 1


Mass: 37799.270 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Rattus rattus (black rat) / Gene: Gnb1 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P54311
#3: Protein Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / G gamma-I


Mass: 7416.489 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Bos taurus (domestic cattle) / Gene: GNG2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P63212

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Antibody / Protein/peptide / Protein / Non-polymers , 4 types, 4 molecules SPR

#4: Antibody scFv16


Mass: 27720.795 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Production host: Spodoptera frugiperda (fall armyworm)
#5: Protein/peptide Parathyroid hormone / PTH / Parathormone / Parathyrin


Mass: 4123.786 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: UniProt: P01270
#6: Protein Parathyroid hormone/parathyroid hormone-related peptide receptor / PTH/PTHrP type I receptor / PTH/PTHr receptor / Parathyroid hormone 1 receptor / PTH1 receptor


Mass: 63846.227 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: PTH1R, PTHR, PTHR1 / Cell line (production host): HEK293 / Production host: Homo sapiens (human) / References: UniProt: Q03431
#7: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Formula: H2O

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Details

Has ligand of interestN
Has protein modificationY

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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
1PTH-PTH1R-Gq complexCOMPLEX#1-#60MULTIPLE SOURCES
2mini-GCOMPLEX#11RECOMBINANT
3Gprotein beta-1COMPLEX#21RECOMBINANT
4Gprotein gamma-2COMPLEX#31RECOMBINANT
5scFv16COMPLEX#41RECOMBINANT
6parathyroid hormoneCOMPLEX#51SYNTHETIC
7parathyroid hormone 1 receptorCOMPLEX#61RECOMBINANT
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
22Homo sapiens (human)9606
33Rattus rattus (black rat)10117
44Bos taurus (domestic cattle)9913
55Mus musculus (house mouse)10090
66Homo sapiens (human)9606
77Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
22Spodoptera frugiperda (fall armyworm)7108
33Spodoptera frugiperda (fall armyworm)7108
44Spodoptera frugiperda (fall armyworm)7108
55Spodoptera frugiperda (fall armyworm)7108
67Homo sapiens (human)9606
Buffer solutionpH: 8
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1600 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Category: model refinement
CTF correctionType: NONE
3D reconstructionResolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 265775 / Symmetry type: POINT

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