4N5Q

Crystal structure of the N-terminal ankyrin repeat domain of TRPV3


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.946 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.169 

wwPDB Validation 3D Report Full Report


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Literature

Crystal structure of the N-terminal ankyrin repeat domain of TRPV3 reveals unique conformation of finger 3 loop critical for channel function

Shi, D.J.Ye, S.Cao, X.Zhang, R.Wang, K.

(2013) Protein Cell 4: 942-950

  • DOI: 10.1007/s13238-013-3091-0

  • PubMed Abstract: 
  • In all six members of TRPV channel subfamily, there is an ankyrin repeat domain (ARD) in their intracellular N-termini. Ankyrin (ANK) repeat, a common motif with typically 33 residues in each repeat, is primarily involved in protein-protein interacti ...

    In all six members of TRPV channel subfamily, there is an ankyrin repeat domain (ARD) in their intracellular N-termini. Ankyrin (ANK) repeat, a common motif with typically 33 residues in each repeat, is primarily involved in protein-protein interactions. Despite the sequence similarity among the ARDs of TRPV channels, the structure of TRPV3-ARD, however, remains unknown. Here, we report the crystal structure of TRPV3-ARD solved at 1.95 Å resolution, which reveals six-ankyrin repeats. While overall structure of TRPV3-ARD is similar to ARDs from other members of TRPV subfamily; it, however, features a noticeable finger 3 loop that bends over and is stabilized by a network of hydrogen bonds and hydrophobic packing, instead of being flexible as seen in known TRPV-ARD structures. Electrophysiological recordings demonstrated that mutating key residues R225, R226, Q255, and F249 of finger 3 loop altered the channel activities and pharmacology. Taken all together, our findings show that TRPV3-ARD with characteristic finger 3 loop likely plays an important role in channel function and pharmacology.


    Organizational Affiliation

    Department of Neurobiology, Neuroscience Research Institute, Peking University Health Science Center, Beijing, 100191, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transient receptor potential cation channel subfamily V member 3
A, B
257Mus musculusMutation(s): 0 
Gene Names: Trpv3
Find proteins for Q8K424 (Mus musculus)
Go to UniProtKB:  Q8K424
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.946 Å
  • R-Value Free: 0.201 
  • R-Value Work: 0.169 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 61.518α = 90.00
b = 78.557β = 93.30
c = 82.975γ = 90.00
Software Package:
Software NamePurpose
PHENIXmodel building
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing
PHENIXrefinement
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-29
    Type: Initial release