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Updated: Jun 24, 2026

Expression and Purification of the Human Lipid-sensitive Cation Channel TRPC3 for Structural Determination by Single-particle Cryo-electron Microscopy
08:27

Expression and Purification of the Human Lipid-sensitive Cation Channel TRPC3 for Structural Determination by Single-particle Cryo-electron Microscopy

Published on: January 7, 2019

TRPC channel lipid specificity and mechanisms of lipid regulation

David J Beech1, Yahya M Bahnasi, Alexandra M Dedman

  • 1Institute of Membrane & Systems Biology, Faculty of Biological Sciences, and Multidisciplinary Cardiovascular Research Centre, University of Leeds, Leeds, UK. d.j.beech@leeds.ac.uk

Cell Calcium
|March 28, 2009
PubMed

Insights

Transient Receptor Potential Canonical (TRPC) channels integrate multiple signals, with lipids playing a key role in their function. This review highlights TRPC channel sensitivity to various lipids, influencing calcium and sodium entry.

Area of Science:

  • Molecular Biology
  • Cell Physiology

Background:

  • Transient Receptor Potential Canonical (TRPC) channels are crucial ion channels in mammalian cells.
  • They regulate vital cellular processes including proliferation, motility, and contraction.
  • TRPC channels act as integrators of diverse cellular signals at the plasma membrane.

Purpose of the Study:

  • To review the sensitivity of TRPC channels to various lipid factors.
  • To explore the mechanisms by which lipids modulate TRPC channel activity.
  • To understand the physiological significance of lipid-TRPC interactions.

Main Methods:

  • Literature review focusing on studies investigating TRPC channel interactions with lipids.
  • Analysis of reported sensitivities to diacylglycerols, lysophospholipids, arachidonic acid, sphingosine-1-phosphate (S1P), cholesterol, and gangliosides.
  • Examination of direct and indirect (receptor-dependent) lipid modulation mechanisms.

Main Results:

  • TRPC channels exhibit both promiscuous and selective sensitivity to a wide range of lipids.
  • Lipids can stimulate TRPC channel function and enhance membrane insertion.
  • Evidence suggests functional links between TRPC channels and phospholipase C and A2 enzymes.

Conclusions:

  • Lipid-sensing is a significant, though not exclusive, aspect of TRPC channel biology.
  • Further research is needed to fully elucidate the role of lipid modulation in TRPC channel function.
  • Understanding lipid-TRPC interactions is essential for appreciating their broader physiological roles.

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