2ETA

Crystal structure of the ankyrin repeat domain of the TRPV2

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.195 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Structure of the N-terminal Ankyrin Repeat Domain of the TRPV2 Ion Channel.

Jin, X., Touhey, J., Gaudet, R.

(2006) J Biol Chem 281: 25006-25010

  • DOI: 10.1074/jbc.C600153200
  • Primary Citation of Related Structures:  
    2ETA, 2ETB, 2ETC

  • PubMed Abstract: 

    • The TRPV ion channels mediate responses to many sensory stimuli including heat, low pH, neuropeptides, and chemical ligands. All TRPV subfamily members contain an intracellular N-terminal ankyrin repeat domain (ARD), a prevalent protein interaction motif ...

    The TRPV ion channels mediate responses to many sensory stimuli including heat, low pH, neuropeptides, and chemical ligands. All TRPV subfamily members contain an intracellular N-terminal ankyrin repeat domain (ARD), a prevalent protein interaction motif. The 1.6-A crystal structure of the TRPV2-ARD, with six ankyrin repeats, reveals several atypical structural features. Repeats one through three display unusually long and flexible fingers with a large number of exposed aromatic residues, whereas repeats five and six have unusually long outer helices. Furthermore, a large counterclockwise twist observed in the stacking of repeats four and five breaks the regularity of the domain, altering the shape of surfaces available for interactions with proteins or other cellular ligands. Both solution studies and crystal packing interactions indicate that the TRPV2-ARD does not form homo-oligomers, suggesting that the ARD of TRPV ion channels may be used for interactions with regulatory factors rather than in promoting tetrameric assembly of the ion channels.

    Organizational Affiliation: 

    Department of Molecular and Cellular Biology, Harvard University, Cambridge, Massachusetts 02138, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Transient receptor potential cation channel subfamily V member 2A, B256Rattus norvegicusMutation(s): 0 
Gene Names: Trpv2, Sac2b, Vrl1
UniProt
Find proteins for Q9WUD2 (Rattus norvegicus)
Explore Q9WUD2 
Go to UniProtKB:  Q9WUD2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9WUD2
Protein Feature View
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.242 
  • R-Value Work: 0.189 
  • R-Value Observed: 0.195 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.77α = 90
b = 60.77β = 90
c = 339.841γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

View Full Validation Report



View more in-depth experimental data

Entry History 

Deposition Data

  • Deposited Date: 2005-10-27 
  • Released Date: 2006-06-27 
    • Deposition Author(s): Jin, X., Gaudet, R.

Revision History  (Full details and data files)

  • Version 1.0: 2006-06-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Version format compliance