8FLR

Human PTH1R in complex with PTHrP and Gs


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.94 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Molecular insights into peptide agonist engagement with the PTH receptor.

Cary, B.P.Gerrard, E.J.Belousoff, M.J.Fletcher, M.M.Jiang, Y.Russell, I.C.Piper, S.J.Wootten, D.Sexton, P.M.

(2023) Structure 31: 668-676.e5

  • DOI: https://doi.org/10.1016/j.str.2023.04.002
  • Primary Citation of Related Structures:  
    8FLQ, 8FLR, 8FLS, 8FLT, 8FLU

  • PubMed Abstract: 

    The parathyroid hormone (PTH) 1 receptor (PTH1R) is a G protein-coupled receptor (GPCR) that regulates skeletal development and calcium homeostasis. Here, we describe cryo-EM structures of the PTH1R in complex with fragments of the two hormones, PTH and PTH-related protein, the drug abaloparatide, as well as the engineered tool compounds, long-acting PTH (LA-PTH) and the truncated peptide, M-PTH(1-14). We found that the critical N terminus of each agonist engages the transmembrane bundle in a topologically similar fashion, reflecting similarities in measures of Gαs activation. The full-length peptides induce subtly different extracellular domain (ECD) orientations relative to the transmembrane domain. In the structure bound to M-PTH, the ECD is unresolved, demonstrating that the ECD is highly dynamic when unconstrained by a peptide. High resolutions enabled identification of water molecules near peptide and G protein binding sites. Our results illuminate the action of orthosteric agonists of the PTH1R.


  • Organizational Affiliation

    Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, VIC, Australia; ARC Centre for Cryo-Electron Microscopy of Membrane Proteins, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville 3052, VIC, Australia. Electronic address: brian.cary@monash.edu.


Macromolecules
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Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(s) subunit alpha isoforms short394Homo sapiensMutation(s): 8 
Gene Names: GNASGNAS1GSP
EC: 3.6.5
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P63092 (Homo sapiens)
Explore P63092 
Go to UniProtKB:  P63092
PHAROS:  P63092
GTEx:  ENSG00000087460 
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UniProt GroupP63092
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  • Reference Sequence
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Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1340Homo sapiensMutation(s): 0 
Gene Names: GNB1
UniProt & NIH Common Fund Data Resources
Find proteins for P62873 (Homo sapiens)
Explore P62873 
Go to UniProtKB:  P62873
PHAROS:  P62873
GTEx:  ENSG00000078369 
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UniProt GroupP62873
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  • Reference Sequence
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Entity ID: 3
MoleculeChains Sequence LengthOrganismDetailsImage
Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2C [auth G]58Homo sapiensMutation(s): 0 
Gene Names: GNG2
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for P59768 (Homo sapiens)
Explore P59768 
Go to UniProtKB:  P59768
PHAROS:  P59768
GTEx:  ENSG00000186469 
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UniProt GroupP59768
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  • Reference Sequence
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Entity ID: 4
MoleculeChains Sequence LengthOrganismDetailsImage
Nanobody35D [auth N]128Lama glamaMutation(s): 0 
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  • Reference Sequence
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Entity ID: 5
MoleculeChains Sequence LengthOrganismDetailsImage
PTHrP[1-36]E [auth P]36Homo sapiensMutation(s): 0 
Membrane Entity: Yes 
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Find proteins for P12272 (Homo sapiens)
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Go to UniProtKB:  P12272
PHAROS:  P12272
GTEx:  ENSG00000087494 
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UniProt GroupP12272
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  • Reference Sequence
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Entity ID: 6
MoleculeChains Sequence LengthOrganismDetailsImage
Parathyroid hormone/parathyroid hormone-related peptide receptorF [auth R]616Homo sapiensMutation(s): 0 
Gene Names: PTH1RPTHRPTHR1
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q03431 (Homo sapiens)
Explore Q03431 
Go to UniProtKB:  Q03431
PHAROS:  Q03431
GTEx:  ENSG00000160801 
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UniProt GroupQ03431
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.94 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARC3.3.2

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Australian Research Council (ARC)AustraliaIC200100052
National Health and Medical Research Council (NHMRC, Australia)Australia1155302
National Health and Medical Research Council (NHMRC, Australia)Australia1154434
National Health and Medical Research Council (NHMRC, Australia)Australia1150083

Revision History  (Full details and data files)

  • Version 1.0: 2023-04-26
    Type: Initial release
  • Version 1.1: 2023-05-17
    Changes: Database references
  • Version 1.2: 2023-06-14
    Changes: Database references
  • Version 1.3: 2024-10-30
    Changes: Data collection, Refinement description, Structure summary