[English] 日本語
Yorodumi
- PDB-9b6j: Cryo-EM structure of the mouse TRPM8 channel in complex with PI(4... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 9b6j
TitleCryo-EM structure of the mouse TRPM8 channel in complex with PI(4,5)P2 and Ca2+
ComponentsTransient receptor potential cation channel subfamily M member 8
KeywordsMEMBRANE PROTEIN / TRPM8 / menthol receptor / cold receptor / PI(4 / 5)P2 / cooling agonists / temperature sensing / ion channel / sensory transduction / transient receptor potential ion channel / TRPM8 activation / TRPM8 inhibition / TRPM8 desensitization / TRPM8 antagonists
Function / homology
Function and homology information


ligand-gated calcium channel activity / TRP channels / thermoception / response to temperature stimulus / response to cold / calcium ion transmembrane transport / calcium channel activity / intracellular calcium ion homeostasis / calcium ion transport / monoatomic ion channel activity ...ligand-gated calcium channel activity / TRP channels / thermoception / response to temperature stimulus / response to cold / calcium ion transmembrane transport / calcium channel activity / intracellular calcium ion homeostasis / calcium ion transport / monoatomic ion channel activity / positive regulation of cold-induced thermogenesis / membrane raft / external side of plasma membrane / identical protein binding / membrane / plasma membrane
Similarity search - Function
: / TRPM, SLOG domain / SLOG in TRPM / Ion transport domain / Ion transport protein
Similarity search - Domain/homology
Chem-PIO / Transient receptor potential cation channel subfamily M member 8
Similarity search - Component
Biological speciesMus musculus (house mouse)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.53 Å
AuthorsYin, Y. / Park, C.-G. / Zhang, F. / Fedor, J. / Feng, S. / Suo, Y. / Im, W. / Lee, S.-Y.
Funding support United States, 2items
OrganizationGrant numberCountry
National Institutes of Health/National Eye Institute (NIH/NEI) United States
National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) United States
CitationJournal: Sci Adv / Year: 2024
Title: Mechanisms of sensory adaptation and inhibition of the cold and menthol receptor TRPM8.
Authors: Ying Yin / Cheon-Gyu Park / Feng Zhang / Justin G Fedor / Shasha Feng / Yang Suo / Wonpil Im / Seok-Yong Lee /
Abstract: Our sensory adaptation to cold and chemically induced coolness is mediated by the intrinsic property of TRPM8 channels to desensitize. TRPM8 is also implicated in cold-evoked pain disorders and ...Our sensory adaptation to cold and chemically induced coolness is mediated by the intrinsic property of TRPM8 channels to desensitize. TRPM8 is also implicated in cold-evoked pain disorders and migraine, highlighting its inhibitors as an avenue for pain relief. Despite the importance, the mechanisms of TRPM8 desensitization and inhibition remained unclear. We found, using cryo-electron microscopy, electrophysiology, and molecular dynamics simulations, that TRPM8 inhibitors bind selectively to the desensitized state of the channel. These inhibitors were used to reveal the overlapping mechanisms of desensitization and inhibition and that cold and cooling agonists share a common desensitization pathway. Furthermore, we identified the structural determinants crucial for the conformational change in TRPM8 desensitization. Our study illustrates how receptor-level conformational changes alter cold sensation, providing insights into therapeutic development.
History
DepositionMar 25, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Aug 21, 2024Provider: repository / Type: Initial release

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Transient receptor potential cation channel subfamily M member 8
B: Transient receptor potential cation channel subfamily M member 8
C: Transient receptor potential cation channel subfamily M member 8
D: Transient receptor potential cation channel subfamily M member 8
hetero molecules


Theoretical massNumber of molelcules
Total (without water)529,34012
Polymers526,1934
Non-polymers3,1478
Water00
1


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

-
Components

#1: Protein
Transient receptor potential cation channel subfamily M member 8 / Long transient receptor potential channel 6 / LTrpC-6 / LTrpC6 / Transient receptor potential p8 / Trp-p8


Mass: 131548.312 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Mus musculus (house mouse) / Gene: Trpm8, Ltrpc6, Trpp8 / Production host: Homo sapiens (human) / References: UniProt: Q8R4D5
#2: Chemical
ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: Ca / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical
ChemComp-PIO / [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate / dioctanoyl l-alpha-phosphatidyl-d-myo-inositol 4,5-diphosphate


Mass: 746.566 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C25H49O19P3 / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

ComponentName: Transient receptor potential cation channel subfamily M member 8
Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Mus musculus (house mouse)
Source (recombinant)Organism: Homo sapiens (human)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 293.15 K

-
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 magnification: 81000 X / Nominal defocus max: 2200 nm / Nominal defocus min: 700 nm / Cs: 2.7 mm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 10045
EM imaging opticsEnergyfilter name: GIF Bioquantum / Energyfilter slit width: 20 eV

-
Processing

EM software
IDNameCategory
2Latitudeimage acquisition
7Cootmodel fitting
9RELIONinitial Euler assignment
10cryoSPARCfinal Euler assignment
12cryoSPARC3D reconstruction
19PHENIXmodel refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 3143850
SymmetryPoint symmetry: C4 (4 fold cyclic)
3D reconstructionResolution: 3.53 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 103487 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model buildingPDB-ID: 8E4N

8e4n


Accession code: 8E4N / Source name: PDB / Type: experimental model
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00328480
ELECTRON MICROSCOPYf_angle_d0.57538740
ELECTRON MICROSCOPYf_dihedral_angle_d5.033840
ELECTRON MICROSCOPYf_chiral_restr0.0354496
ELECTRON MICROSCOPYf_plane_restr0.0054792

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbjlc1.pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more