Table 1.

Ca-Dependent and -Independent CaM-Binding to CL2 Domains.

Connexins	kD (with Ca2+)	kD (without Ca2+)
Cx32	40 ± 4 nM	280 ± 10 nM
Cx35	31 ± 2 nM	2.67 ± 0.09 µM
Cx45	75 ± 4 nM	78 ± 1 nM
Cx57	60 ± 6 nM	52 ± 14 nM