7WRF

Mouse TRPM8 in lipid nanodiscs in the presence of calcium, icilin and PI(4,5)P2


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.04 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


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Literature

Structures of a mammalian TRPM8 in closed state.

Zhao, C.Xie, Y.Xu, L.Ye, F.Xu, X.Yang, W.Yang, F.Guo, J.

(2022) Nat Commun 13: 3113-3113

  • DOI: 10.1038/s41467-022-30919-y
  • Primary Citation of Related Structures:  
    7WRA, 7WRB, 7WRC, 7WRD, 7WRE, 7WRF

  • PubMed Abstract: 
  • Transient receptor potential melastatin 8 (TRPM8) channel is a Ca 2+ -permeable non-selective cation channel that acts as the primary cold sensor in humans. TRPM8 is also activated by ligands such as menthol, icilin, and phosphatidylinositol 4,5-bisphosphate (PIP 2 ), and desensitized by Ca 2+ ...

    Transient receptor potential melastatin 8 (TRPM8) channel is a Ca 2+ -permeable non-selective cation channel that acts as the primary cold sensor in humans. TRPM8 is also activated by ligands such as menthol, icilin, and phosphatidylinositol 4,5-bisphosphate (PIP 2 ), and desensitized by Ca 2+ . Here we have determined electron cryo-microscopy structures of mouse TRPM8 in the absence of ligand, and in the presence of Ca 2+ and icilin at 2.5-3.2 Å resolution. The ligand-free state TRPM8 structure represents the full-length structure of mammalian TRPM8 channels with a canonical S4-S5 linker and the clearly resolved selectivity filter and outer pore loop. TRPM8 has a short but wide selectivity filter which may account for its permeability to hydrated Ca 2+ . Ca 2+ and icilin bind in the cytosolic-facing cavity of the voltage-sensing-like domain of TRPM8 but induce little conformational change. All the ligand-bound TRPM8 structures adopt the same closed conformation as the ligand-free structure. This study reveals the overall architecture of mouse TRPM8 and the structural basis for its ligand recognition.


    Organizational Affiliation

    Cancer Center, Zhejiang University, Hangzhou, Zhejiang, 310058, China. jiangtaoguo@zju.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transient receptor potential cation channel subfamily M member 8A, B, C, D1120Mus musculusMutation(s): 0 
Gene Names: Trpm8Ltrpc6Trpp8
Membrane Entity: Yes 
UniProt
Find proteins for Q8R4D5 (Mus musculus)
Explore Q8R4D5 
Go to UniProtKB:  Q8R4D5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8R4D5
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.04 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology (MoST, China)China2020YFA0908501
Ministry of Science and Technology (MoST, China)China2018YFA0508100

Revision History  (Full details and data files)

  • Version 1.0: 2022-06-22
    Type: Initial release