4GIF

C-terminal coiled-coil domain of transient receptor potential channel TRPP3 (PKD2L1, Polycystin-L)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.235 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular mechanism of the assembly of an acid-sensing receptor ion channel complex.

Yu, Y.Ulbrich, M.H.Li, M.H.Dobbins, S.Zhang, W.K.Tong, L.Isacoff, E.Y.Yang, J.

(2012) Nat Commun 3: 1252-1252

  • DOI: 10.1038/ncomms2257

  • PubMed Abstract: 
  • Polycystic kidney disease (PKD) family proteins associate with transient receptor potential (TRP) channel family proteins to form functionally important complexes. PKD proteins differ from known ion channel-forming proteins and are generally thought ...

    Polycystic kidney disease (PKD) family proteins associate with transient receptor potential (TRP) channel family proteins to form functionally important complexes. PKD proteins differ from known ion channel-forming proteins and are generally thought to act as membrane receptors. Here we find that PKD1L3, a PKD protein, functions as a channel-forming subunit in an acid-sensing heteromeric complex formed by PKD1L3 and TRPP3, a TRP channel protein. Single amino-acid mutations in the putative pore region of both proteins alter the channel's ion selectivity. The PKD1L3/TRPP3 complex in the plasma membrane of live cells contains one PKD1L3 and three TRPP3. A TRPP3 C-terminal coiled-coil domain forms a trimer in solution and in crystal, and has a crucial role in the assembly and surface expression of the PKD1L3/TRPP3 complex. These results demonstrate that PKD subunits constitute a new class of channel-forming proteins, enriching our understanding of the function of PKD proteins and PKD/TRPP complexes.


    Organizational Affiliation

    Department of Biological Sciences, Columbia University, New York, New York 10027, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Polycystic kidney disease 2-like 1 protein
A
45Homo sapiensMutation(s): 0 
Gene Names: PKD2L1 (PKD2L, PKDL, TRPP3)
Find proteins for Q9P0L9 (Homo sapiens)
Go to Gene View: PKD2L1
Go to UniProtKB:  Q9P0L9
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.235 
  • Space Group: P 3 2 1
Unit Cell:
Length (Å)Angle (°)
a = 44.527α = 90.00
b = 44.527β = 90.00
c = 62.306γ = 120.00
Software Package:
Software NamePurpose
PHASERphasing
ADSCdata collection
SCALEPACKdata scaling
DENZOdata reduction
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-05
    Type: Initial release
  • Version 1.1: 2012-12-26
    Type: Database references