Skip to main content
. 2015 May 22;27(6):1697–1717. doi: 10.1105/tpc.15.00305

Table 3. Suppressing KC1-AKT1 K+ Current in X. laevis Oocytes by VAMP721 Depends on the Longin Domain Residue Tyr-57.

V1/2 (mV) gmax (ms) δ
AKT1 −93.1 ± 1.0 0.52 ± 0.01 −1.45 ± 0.03
AKT1+KC1 −186.8 ± 2.1
AKT1+KC1+VAMP721 −212.2 ± 3.2*
AKT1+KC1+VAMP723 −189.2 ± 1.4
AKT1+KC1+VAMP721Y57A −209.7 ± 3.1*
AKT1+KC1+VAMP721Y57D −187.1 ± 2.4

Parameter values are results of joint, nonlinear least-squares fitting of K+ currents in Figure 10. Fittings were carried out with the gating charge, δ, and gmax held in common, and values for the voltage giving half-maximal conductance V1/2 were allowed to vary between data sets. Data are from seven or more separate experiments for each construct combination and are given as means ± se. Significance for V1/2 as the difference from KC1-AKT1 expressed alone at *P < 0.01.