Fig 4. Dependence of TRPV1 components upon cellular expression level in living cells expressing TRPV1-YFP.

The graphs show the inverse of relative amplitudes of the three components of TRPV1 vs. average fluorescence intensity; the latter quantity is proportional to protein expression level in living cells. This analysis reveals the TRPV1-C and TRPV1-T components to be negligibly affected by the expression level (a and b respectively) while there is a positive dependence of the average intensity for the isostropic component TRPV1-I (c, with R² = 0.809).