5ZBG

Cryo-EM structure of human TRPC3 at 4.36A resolution


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.36 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of the receptor-activated human TRPC6 and TRPC3 ion channels

Tang, Q.Guo, W.Zheng, L.Wu, J.X.Liu, M.Zhou, X.Zhang, X.Chen, L.

(2018) Cell Res 28: 746-755

  • DOI: 10.1038/s41422-018-0038-2
  • Primary Citation of Related Structures:  
    5YX9, 5ZBG

  • PubMed Abstract: 
  • TRPC6 and TRPC3 are receptor-activated nonselective cation channels that belong to the family of canonical transient receptor potential (TRPC) channels. They are activated by diacylglycerol, a lipid second messenger. TRPC6 and TRPC3 are involved in many physiological processes and implicated in human genetic diseases ...

    TRPC6 and TRPC3 are receptor-activated nonselective cation channels that belong to the family of canonical transient receptor potential (TRPC) channels. They are activated by diacylglycerol, a lipid second messenger. TRPC6 and TRPC3 are involved in many physiological processes and implicated in human genetic diseases. Here we present the structure of human TRPC6 homotetramer in complex with a newly identified high-affinity inhibitor BTDM solved by single-particle cryo-electron microscopy to 3.8 Å resolution. We also present the structure of human TRPC3 at 4.4 Å resolution. These structures show two-layer architectures in which the bell-shaped cytosolic layer holds the transmembrane layer. Extensive inter-subunit interactions of cytosolic domains, including the N-terminal ankyrin repeats and the C-terminal coiled-coil, contribute to the tetramer assembly. The high-affinity inhibitor BTDM wedges between the S5-S6 pore domain and voltage sensor-like domain to inhibit channel opening. Our structures uncover the molecular architecture of TRPC channels and provide a structural basis for understanding the mechanism of these channels.


    Organizational Affiliation

    Peking-Tsinghua Center for Life Sciences, Peking University, 100871, Beijing, China. chenlei2016@pku.edu.cn.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Short transient receptor potential channel 3A, B, C, D848Homo sapiensMutation(s): 0 
Gene Names: TRPC3TRP3
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q13507 (Homo sapiens)
Explore Q13507 
Go to UniProtKB:  Q13507
PHAROS:  Q13507
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 4.36 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Ministry of Science and Technology of ChinaChina2016YFA0502004
National Natural Science Foundation of ChinaChina31622021
National Natural Science Foundation of ChinaChina31521062

Revision History  (Full details and data files)

  • Version 1.0: 2018-05-09
    Type: Initial release
  • Version 1.1: 2018-07-18
    Changes: Data collection, Database references