Loss-of-Function SLAC1-S456F and SLAC1-Δ1461-1671 Inhibit KAT1 Dramatically in X. laevis Oocytes.
(A) to (D) Typical whole-oocyte recordings of control oocytes injected with water (A) and oocytes expressing KAT1 alone (B), KAT1 + SLAC1-S456F
(C), and KAT1 + SLAC1-Δ1461-1671
(D). The [cRNA] ratios of KAT1/SLAC1-S456F in (C) and KAT1/SLAC1-Δ1461-1671 in (D) were 1:2.
(E) Average current-voltage curves of whole-oocyte currents recorded in oocytes injected with water (n = 5), KAT1 cRNA (n = 7), a cRNA mixture of KAT1 + SLAC1-S456F (n = 6), and a cRNA mixture of KAT1 + SLAC1-Δ1461-1671 (n = 10).
(F) Relative macroscopic Shaker conductance and immunoblot analysis. The oocyte numbers for K+in recordings in (F) were the same as described for (E). Error bars depict means ± se.