Influence of PKC on Ca2+-channel gating and modulation.
(A and B) Voltage dependence of
activation and facilitation were measured as in Fig. 1 with and without
treatment with OAG. (A) Cav2.1. Activation:
●, GTPγS; ○, GTPγS plus OAG;
▵, PKC-inhibitor peptide (IP). Facilitation: ▫,
GTPγS plus OAG test 1; ▪, GTPγS plus OAG test 2.
(B) Cav2.2a. ●, no addition;
○, OAG; ▵, OAG + PKC-IP. Facilitation:
▫, OAG test 1; ▪, OAG test 2. (C
and D) Influence of PKC on inactivation. Voltage
dependence of inactivation was measured as in Fig. 1 in the presence
and absence of OAG. (C) Cav2.1:
○, OAG; ●, GTPγS; ▵,
PKC-IP. (D) Cav2.2a: ○, OAG;
●, GTPγS; ▵, PKC-IP.