Table 1.

Summary of the responsiveness of hTRPA1, hTRPA1-dTM5, and hTRPA1-S873V/T874L to TRPA1 modulators

CompoundEffecthTRPA1 EC50 or IC50m)hTRPA1-dTM5 EC50 or IC50m)hTRPA1-S873V/T874L EC50 or IC50m)
MentholActivation28.4 ± 3.6No activation161.2 ± 31.5
ThymolActivation62.5 ± 3.2No activation>400a
FTSActivation7.3 ± 1.1No activation11.8 ± 8.3
TrinitrophenolActivation383.8 ± 5.7367.9 ± 76.7218.6 ± 3.6
MOActivation2.33 ± 0.741.32 ± 0.460.98 ± 0.24
AP18Inhibition0.60 ± 0.17No inhibitionNo inhibition
AMG5445Inhibition2.23 ± 0.58No inhibitionNo inhibition
HCO30031Inhibition12.87 ± 2.6711.47 ± 2.398.51 ± 1.36
Ruthenium redInhibition1.5 ± 0.20.48 ± 0.030.64 ± 0.13
  • aCould not be accurately fit with a Hill Equation.