6UZ8

Cryo-EM structure of human TRPC6 in complex with agonist AM-0883


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.84 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history


Literature

Structural basis for pharmacological modulation of the TRPC6 channel.

Bai, Y.Yu, X.Chen, H.Horne, D.White, R.Wu, X.Lee, P.Gu, Y.Ghimire-Rijal, S.Lin, D.C.Huang, X.

(2020) Elife 9

  • DOI: 10.7554/eLife.53311
  • Primary Citation of Related Structures:  
    6UZ8, 6UZA

  • PubMed Abstract: 
  • Transient receptor potential canonical (TRPC) proteins form nonselective cation channels that play physiological roles in a wide variety of cells. Despite growing evidence supporting the therapeutic potential of TRPC6 inhibition in treating pathological cardiac and renal conditions, mechanistic understanding of TRPC6 function and modulation remains obscure ...

    Transient receptor potential canonical (TRPC) proteins form nonselective cation channels that play physiological roles in a wide variety of cells. Despite growing evidence supporting the therapeutic potential of TRPC6 inhibition in treating pathological cardiac and renal conditions, mechanistic understanding of TRPC6 function and modulation remains obscure. Here we report cryo-EM structures of TRPC6 in both antagonist-bound and agonist-bound states. The structures reveal two novel recognition sites for the small-molecule modulators corroborated by mutagenesis data. The antagonist binds to a cytoplasm-facing pocket formed by S1-S4 and the TRP helix, whereas the agonist wedges at the subunit interface between S6 and the pore helix. Conformational changes upon ligand binding illuminate a mechanistic rationale for understanding TRPC6 modulation. Furthermore, structural and mutagenesis analyses suggest several disease-related mutations enhance channel activity by disrupting interfacial interactions. Our results provide principles of drug action that may facilitate future design of small molecules to ameliorate TRPC6-mediated diseases.


    Organizational Affiliation

    Department of Molecular Engineering, Amgen Research, Amgen Inc, Cambridge, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Short transient receptor potential channel 6A,
C [auth B],
D [auth C],
B [auth D]
847Homo sapiensMutation(s): 0 
Gene Names: TRPC6TRP6
Membrane Entity: Yes 
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y210 (Homo sapiens)
Explore Q9Y210 
Go to UniProtKB:  Q9Y210
PHAROS:  Q9Y210
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9Y210
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SBM
Query on SBM

Download Ideal Coordinates CCD File 
E [auth A],
I [auth D],
O [auth B],
S [auth C]
2-[[(2~{S})-2-decanoyloxy-3-dodecanoyloxy-propoxy]-oxidanyl-phosphoryl]oxyethyl-trimethyl-azanium
C30 H61 N O8 P
YCHNJZJVKCSKTN-NDEPHWFRSA-O
 Ligand Interaction
Y01
Query on Y01

Download Ideal Coordinates CCD File 
F [auth A],
H [auth A],
J [auth D],
L [auth D],
N [auth B],
F [auth A],
H [auth A],
J [auth D],
L [auth D],
N [auth B],
P [auth B],
R [auth C],
T [auth C]
CHOLESTEROL HEMISUCCINATE
C31 H50 O4
WLNARFZDISHUGS-MIXBDBMTSA-N
 Ligand Interaction
R0D (Subject of Investigation/LOI)
Query on R0D

Download Ideal Coordinates CCD File 
G [auth A],
K [auth D],
M [auth B],
Q [auth C]
(5-chloro-1'H-spiro[indole-3,4'-piperidin]-1'-yl)[(2R)-2,3-dihydro-1,4-benzodioxin-2-yl]methanone
C21 H19 Cl N2 O3
FORRKPPZDDUANL-LJQANCHMSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 2.84 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-03-18
    Type: Initial release