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- PDB-7xw7: TSHR-K1-70 complex -

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Basic information

Entry
Database: PDB / ID: 7xw7
TitleTSHR-K1-70 complex
Components
  • K1-70 scFv
  • Thyrotropin receptor
KeywordsMEMBRANE PROTEIN / thyroid-stimulating hormone / thyroid-stimulating hormone receptor / THS / THSR / GPCR / Gs / k1-70
Function / homology
Function and homology information


thyroid-stimulating hormone signaling pathway / cellular response to glycoprotein / cellular response to thyrotropin-releasing hormone / thyroid-stimulating hormone receptor activity / Hormone ligand-binding receptors / G protein-coupled peptide receptor activity / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hormone-mediated signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / cell-cell signaling ...thyroid-stimulating hormone signaling pathway / cellular response to glycoprotein / cellular response to thyrotropin-releasing hormone / thyroid-stimulating hormone receptor activity / Hormone ligand-binding receptors / G protein-coupled peptide receptor activity / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / hormone-mediated signaling pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / cell-cell signaling / signaling receptor activity / positive regulation of cold-induced thermogenesis / G alpha (s) signalling events / basolateral plasma membrane / cell surface receptor signaling pathway / receptor complex / G protein-coupled receptor signaling pathway / positive regulation of cell population proliferation / protein-containing complex binding / cell surface / plasma membrane
Similarity search - Function
Thyrotropin receptor / Glycoprotein hormone receptor family / BspA type Leucine rich repeat region / BspA type Leucine rich repeat region (6 copies) / Leucine-rich repeat domain superfamily / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family)
Similarity search - Domain/homology
Thyrotropin receptor
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 5.5 Å
AuthorsDuan, J. / Xu, P. / Luan, X. / Ji, Y. / Yuan, Q. / He, X. / Ye, J. / Cheng, X. / Jiang, H. / Zhang, S. ...Duan, J. / Xu, P. / Luan, X. / Ji, Y. / Yuan, Q. / He, X. / Ye, J. / Cheng, X. / Jiang, H. / Zhang, S. / Jiang, Y. / Xu, H.E.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32130022 China
CitationJournal: Nature / Year: 2022
Title: Hormone- and antibody-mediated activation of the thyrotropin receptor.
Authors: Jia Duan / Peiyu Xu / Xiaodong Luan / Yujie Ji / Xinheng He / Ning Song / Qingning Yuan / Ye Jin / Xi Cheng / Hualiang Jiang / Jie Zheng / Shuyang Zhang / Yi Jiang / H Eric Xu /
Abstract: Thyroid-stimulating hormone (TSH), through activation of its G-protein-coupled thyrotropin receptor (TSHR), controls the synthesis of thyroid hormone-an essential metabolic hormone. Aberrant ...Thyroid-stimulating hormone (TSH), through activation of its G-protein-coupled thyrotropin receptor (TSHR), controls the synthesis of thyroid hormone-an essential metabolic hormone. Aberrant signalling of TSHR by autoantibodies causes Graves' disease (hyperthyroidism) and hypothyroidism, both of which affect millions of patients worldwide. Here we report the active structures of TSHR with TSH and the activating autoantibody M22, both bound to the allosteric agonist ML-109, as well as an inactivated TSHR structure with the inhibitory antibody K1-70. Both TSH and M22 push the extracellular domain (ECD) of TSHR into an upright active conformation. By contrast, K1-70 blocks TSH binding and cannot push the ECD into the upright conformation. Comparisons of the active and inactivated structures of TSHR with those of the luteinizing hormone/choriogonadotropin receptor (LHCGR) reveal a universal activation mechanism of glycoprotein hormone receptors, in which a conserved ten-residue fragment (P10) from the hinge C-terminal loop mediates ECD interactions with the TSHR transmembrane domain. One notable feature is that there are more than 15 cholesterols surrounding TSHR, supporting its preferential location in lipid rafts. These structures also highlight a similar ECD-push mechanism for TSH and autoantibody M22 to activate TSHR, therefore providing the molecular basis for Graves' disease.
History
DepositionMay 26, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Aug 17, 2022Provider: repository / Type: Initial release
Revision 1.1Aug 24, 2022Group: Database references / Category: citation / Item: _citation.pdbx_database_id_PubMed
Revision 1.2Oct 5, 2022Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last
Revision 1.3Jul 26, 2023Group: Other / Category: pdbx_database_status / Item: _pdbx_database_status.pdb_format_compatible
Revision 2.0Mar 13, 2024Group: Advisory / Atomic model ...Advisory / Atomic model / Data collection / Database references / Derived calculations / Polymer sequence / Source and taxonomy / Structure summary
Category: atom_site / chem_comp_atom ...atom_site / chem_comp_atom / chem_comp_bond / em_entity_assembly / entity / entity_name_com / entity_poly / entity_poly_seq / entity_src_gen / pdbx_poly_seq_scheme / pdbx_struct_assembly_gen / pdbx_struct_sheet_hbond / pdbx_unobs_or_zero_occ_atoms / pdbx_unobs_or_zero_occ_residues / pdbx_validate_polymer_linkage / pdbx_validate_torsion / struct_asym / struct_conf / struct_mon_prot_cis / struct_ref / struct_ref_seq / struct_ref_seq_dif / struct_sheet_range
Item: _atom_site.auth_asym_id / _atom_site.auth_seq_id ..._atom_site.auth_asym_id / _atom_site.auth_seq_id / _atom_site.label_asym_id / _atom_site.label_entity_id / _atom_site.label_seq_id / _atom_site.pdbx_PDB_ins_code / _em_entity_assembly.entity_id_list / _entity_name_com.entity_id / _entity_poly_seq.entity_id / _entity_poly_seq.num / _pdbx_poly_seq_scheme.asym_id / _pdbx_poly_seq_scheme.entity_id / _pdbx_poly_seq_scheme.ndb_seq_num / _pdbx_poly_seq_scheme.pdb_ins_code / _pdbx_poly_seq_scheme.pdb_seq_num / _pdbx_poly_seq_scheme.pdb_strand_id / _pdbx_poly_seq_scheme.seq_id / _pdbx_struct_assembly_gen.asym_id_list / _pdbx_struct_sheet_hbond.range_1_auth_asym_id / _pdbx_struct_sheet_hbond.range_1_auth_seq_id / _pdbx_struct_sheet_hbond.range_1_label_asym_id / _pdbx_struct_sheet_hbond.range_1_label_seq_id / _pdbx_struct_sheet_hbond.range_2_auth_asym_id / _pdbx_struct_sheet_hbond.range_2_auth_seq_id / _pdbx_struct_sheet_hbond.range_2_label_asym_id / _pdbx_struct_sheet_hbond.range_2_label_seq_id / _pdbx_unobs_or_zero_occ_atoms.PDB_ins_code / _pdbx_unobs_or_zero_occ_atoms.auth_asym_id / _pdbx_unobs_or_zero_occ_atoms.auth_seq_id / _pdbx_unobs_or_zero_occ_atoms.label_asym_id / _pdbx_unobs_or_zero_occ_atoms.label_seq_id / _pdbx_unobs_or_zero_occ_residues.label_asym_id / _pdbx_validate_torsion.auth_asym_id / _pdbx_validate_torsion.auth_seq_id / _struct_conf.beg_auth_asym_id / _struct_conf.beg_auth_seq_id / _struct_conf.beg_label_asym_id / _struct_conf.beg_label_seq_id / _struct_conf.end_auth_asym_id / _struct_conf.end_auth_seq_id / _struct_conf.end_label_asym_id / _struct_conf.end_label_seq_id / _struct_mon_prot_cis.label_asym_id / _struct_mon_prot_cis.pdbx_label_asym_id_2 / _struct_ref_seq_dif.align_id / _struct_sheet_range.beg_auth_asym_id / _struct_sheet_range.beg_auth_seq_id / _struct_sheet_range.beg_label_asym_id / _struct_sheet_range.beg_label_seq_id / _struct_sheet_range.end_auth_asym_id / _struct_sheet_range.end_auth_seq_id / _struct_sheet_range.end_label_asym_id / _struct_sheet_range.end_label_seq_id

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: K1-70 scFv
R: Thyrotropin receptor


Theoretical massNumber of molelcules
Total (without water)104,2952
Polymers104,2952
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Antibody K1-70 scFv


Mass: 24400.182 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 Thyrotropin receptor / Thyroid-stimulating hormone receptor / TSH-R


Mass: 79894.734 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TSHR, LGR3 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P16473

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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

ComponentName: TSHR-thyroid stimulating hormone-Gs-ML109 complex / Type: COMPLEX / Entity ID: #2 / Source: RECOMBINANT
Source (natural)Organism: Homo (humans)
Source (recombinant)Organism: Trichoplusia ni (cabbage looper)
Buffer solutionpH: 7.4
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE-PROPANE

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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 FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

SoftwareName: PHENIX / Version: 1.20_4459: / Classification: refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 5.5 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 52479 / Symmetry type: POINT
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.0013919
ELECTRON MICROSCOPYf_angle_d0.2945452
ELECTRON MICROSCOPYf_dihedral_angle_d2.168790
ELECTRON MICROSCOPYf_chiral_restr0.044747
ELECTRON MICROSCOPYf_plane_restr0.001790

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