TRPM8 (Q7Z2W7) - Overview - Molecular Target Synopsis
TRPM8, Transient receptor potential cation channel subfamily M member 8
Also Known as TRPM8_HUMAN, TRPM8, LTRPC6, TRPP8
Receptor-activated non-selective cation channel involved in detection of sensations such as coolness, by being activated by cold temperature below 25 degrees Celsius. Activated by icilin, eucalyptol, menthol, cold and modulation of intracellular pH. Involved in menthol sensation. Permeable for monovalent cations sodium, potassium, and cesium and divalent cation calcium. Temperature sensing is tightly linked to voltage-dependent gating. Activated upon depolarization, changes in temperature resulting in graded shifts of its voltage-dependent activation curves. The chemical agonist menthol functions as a gating modifier, shifting activation curves towards physiological membrane potentials. Temperature sensitivity arises from a tenfold difference in the activation energies associated with voltage-dependent opening and closing. In prostate cancer cells, shows strong inward rectification and high calcium selectivity in contrast to its behavior in normal cells which is characterized by outward rectification and poor cationic selectivity. Plays a role in prostate cancer cell migration (PubMed:25559186). Isoform 2 and isoform 3 negatively regulate menthol- and cold-induced channel activity by stabilizing the closed state of the channel. Homotetramer (By similarity). Isoform 2 and isoform 3 interact with the C-terminus of isoform 1 in a thermosensitive manner with decreased interaction at 21 degrees Celsius compared to 37 degrees Celsius. Interacts (via N-terminus and C-terminus domains) with TCAF1; the interaction stimulates TRPM8 channel activity (PubMed:25559186). Interacts (via N-terminus and C-terminus domains) with TCAF2 isoform 2; the interaction inhibits TRPM8 channel activity (PubMed:25559186).
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UniProt: TRPM8 is active in the following subcellular-locations: cell membrane, endoplasmic reticulum membrane, membrane raft.
GO terms: TRPM8 is active in the following subcellular-locations: endoplasmic reticulum membrane, external side of plasma membrane, integral component of membrane, membrane raft, plasma membrane.