Table 1 Dependence of Ca²⁺ apparent inhibition constant on [SF].

20

0.0042 ± 0.0013

0.0529 ± 0.0020

0.080 ± 0.025

0.1

30

0.0037 ± 0.0003

0.0449 ± 0.0005

0.082 ± 0.007

(fig. 2)

40

0.0032 ± 0.0013

0.0410 ± 0.0020

0.078 ± 0.032

80

0.0031 ± 0.0018

0.0410 ± 0.0027

0.076 ± 0.044

Weighted mean, K_i

0.082 ± 0.001

0. 1 (fig. 1)

0

0.0043 ± 0.0008

0.0599 ± 0.0005

0.072 ± 0.010