Figure 4. Time constants of recovery from inactivation and of deactivation of the erg-like K⁺ current in native lactotrophs and GH₃/B₆ cells.

A, recovery from inactivation of the E-4031-sensitive current in lactotrophs from primary culture (n= 11; •) and GH₃/B₆ cells (n= 8; ▪) was fitted with a single exponential function. B, deactivation of the E-4031-sensitive current in native lactotrophs (n= 11) was fitted with the sum of two exponential functions (τ_fast, •; τ_slow, ○). In GH₃/B₆ cells (n= 7; ▪) a single exponential function was used. Time constants are given as means ±s.d.