Fig. 3. Specific Kv1.3 density in lymphocytes insignificantly changes upon activation or co-culture with OP9 cells. Peak voltage- and time-dependent Kv1.3 current was measured at zero voltage and taken relative to whole cell capacitance, proportional to cell membrane surface (1 pF~ 100 µm²). Data are mean ± SE, n is a total number of tested cells for each condition. No significant difference was observed as a result of activation or co-culture.