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Related Experiment Video

Updated: Nov 3, 2025

Expression and Purification of the Human Lipid-sensitive Cation Channel TRPC3 for Structural Determination by Single-particle Cryo-electron Microscopy
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TRPV3 expression and purification for structure determination by Cryo-EM.

Arthur Neuberger1, Kirill D Nadezhdin1, Alexander I Sobolevsky1

  • 1Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, United States.

Methods in Enzymology
|June 1, 2021
PubMed
Summary

This study details a protocol for purifying the TRPV3 channel protein, essential for understanding its role in skin health and temperature sensing. This purified protein enables detailed structural and functional studies, aiding drug design for skin diseases.

Keywords:
ConformationCryo-EMExpressionGatingProteinPurificationStructureTRP channelsTRPV3

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Area of Science:

  • Biophysics
  • Molecular Biology
  • Dermatology

Background:

  • The TRPV3 channel plays a crucial role in physiological processes like temperature sensing, skin barrier function, and hair growth.
  • Dysfunction of TRPV3 is linked to skin conditions such as Olmsted syndrome, atopic dermatitis, and rosacea.
  • Understanding TRPV3 structure is vital for developing targeted therapies.

Purpose of the Study:

  • To establish a robust protocol for the expression and purification of functional TRPV3 protein.
  • To provide a stable, pure TRPV3 protein preparation suitable for advanced structural and functional analyses.
  • To facilitate high-resolution structural determination, particularly via cryo-electron microscopy (cryo-EM).

Main Methods:

  • Detailed protocol for recombinant expression of TRPV3.
  • Purification strategies yielding chemically pure and stable TRPV3 protein.
  • Preparation of samples for cryo-EM and subsequent 3D reconstruction.

Main Results:

  • Successfully expressed and purified stable TRPV3 protein.
  • The purified protein is suitable for structural characterization.
  • The protocol enables high-resolution 3D reconstruction of the TRPV3 channel.

Conclusions:

  • The developed protocol provides a reliable method for obtaining pure, functional TRPV3 protein.
  • This resource is critical for advancing research into TRPV3's physiological roles and disease associations.
  • Facilitates structural studies crucial for the rational design of TRPV3-targeting drugs.