TABLE II Relative Permeability to cAMP... | Rockefeller University Press

TABLE II

Relative Permeability to cAMP and LY and Estimated Pore Diameter of Cx26, Cx40, and Cx43 Channels

	Cx26	Cx40	Cx43
cAMP/K⁺	0.027	0.018	0.180
LY/K⁺	0.0043	0.0026	0.029
cAMP/LY	6.3	6.9	6.2
Estimated pore diameter (nm)
from cAMP (0.52 nm, minor diameter)	0.69	0.65	1.12
from LY (0.95 nm, minor diameter)	1.1	1.08	1.25

	Cx26	Cx40	Cx43
cAMP/K⁺	0.027	0.018	0.180
LY/K⁺	0.0043	0.0026	0.029
cAMP/LY	6.3	6.9	6.2
Estimated pore diameter (nm)
from cAMP (0.52 nm, minor diameter)	0.69	0.65	1.12
from LY (0.95 nm, minor diameter)	1.1	1.08	1.25