4GIF

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.240 

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
  • Primary Citation of Related Structures:  
    4GIF

  • 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 to act as membrane receptors ...

    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:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Polycystic kidney disease 2-like 1 proteinA45Homo sapiensMutation(s): 0 
Gene Names: PKD2L1PKD2LPKDLTRPP3
UniProt & NIH Common Fund Data Resources
Find proteins for Q9P0L9 (Homo sapiens)
Explore Q9P0L9 
Go to UniProtKB:  Q9P0L9
PHAROS:  Q9P0L9
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.286 
  • R-Value Work: 0.235 
  • R-Value Observed: 0.240 
  • Space Group: P 3 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.527α = 90
b = 44.527β = 90
c = 62.306γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

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