The TRP ion channel family includes channels responsive to heat and cold.
A family of at least 20 ion channel proteins are encoded by mammalian homologues of the Drosophila transient receptor potential (TRP) channel gene. Although they are abundantly dispersed throughout mammalian tissues, little is known about their precise physiological roles.
The activation or regulation of TRP channels by phosphatidylinositol signal transduction pathways is a characteristic that unites them. The six transmembrane domains on the channel subunits are most likely assembled into tetramers to create non-selective cationic channels, which allow calcium ions to enter cells. The TRP channel family consists of three subgroups; the one that mediates reactions to painful stimuli is the best understood.
Refilling intracellular calcium reserves, receptor-mediated excitation, and cell cycle regulation are a few more tasks that have been suggested.
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