Electrical characteristics of transporters involved in hypotonic regulation

(a) Current-voltage (I/V) characteristics of putative stretch-activated channels (1, violet), Ca²⁺-activated Cl^- channels (2, blue) and K⁺ channels (3, red).

(b) Conductance-voltage (G/V) curves for the same transporters, calculated by fitting polynomials to the I/V data and differentiating.