TRPM8
Chr 2transient receptor potential cation channel subfamily M member 8
Also known as: LTRPC6, LTrpC-6, TRPP8, trp-p8
TRPM8 encodes a calcium-permeable ion channel that detects cold temperatures below 23-28°C and is activated by cooling compounds like menthol, playing a central role in environmental temperature sensing and basal tear secretion. Mutations cause autosomal dominant or recessive disorders affecting temperature sensation and potentially other sensory functions. The gene shows low constraint against loss-of-function variants, suggesting complete loss may be tolerated in some contexts.
Population Genetics & Constraint
gnomAD v4 — loss-of-function & missense intolerance
Highly tolerant — LoF variants common in population
Mild missense constraint
The highest-scoring mechanism for this gene is gain-of-function.
Note: In-silico variant effect predictors (SIFT, PolyPhen, REVEL, CADD) may underestimate pathogenicity of missense variants in genes with GOF or DN mechanisms. Consider functional evidence and clinical context.
Predictions from Badonyi M, Marsh JA. PLoS ONE. 2024;19(8):e0307312.
ClinVar Variant Classifications
214 submitted variants in ClinVar
Classification Summary
Curated Variants Distribution
Classified variants from ClinVar · 5 ACMG categories
| Classification | LoF | Missense + Inframe | Non-coding | Synonymous | Total |
|---|---|---|---|---|---|
Pathogenic | 0 | 0 | 38 | 0 | 38 |
Likely Pathogenic | 0 | 0 | 2 | 0 | 2 |
VUS | 0 | 138 | 8 | 0 | 146 |
Likely Benign | 0 | 3 | 2 | 3 | 8 |
Benign | 0 | 3 | 1 | 4 | 8 |
| Total | 0 | 144 | 51 | 7 | 202 |
LoF = frameshift, stop gained/lost, canonical splice · Counts from ClinVar esearch · Updated hourly
View in ClinVar →Protein Context — Lollipop Plot
TRPM8 · protein map & ClinVar variants
Showing all ClinVar variants across the protein. Search a specific variant to highlight its position.
External Resources
Links to major genomics databases and tools
Clinical Trials
Active and recruiting trials from ClinicalTrials.gov
Growing Up in Multifactorial Risk Conditions
ENROLLING BY INVITATIONEfficacy and Safety of Stapokibart in Non-Allergic Rhinitis With Eosinophilia Syndrome
NOT YET RECRUITINGExternal Resources
Links to major genomics databases and tools