The S5-S6 linker of repeat I is a critical determinant of L-type Ca2+ channel conductance.
Dirksen RT, Nakai J, Gonzalez A, Imoto K, Beam KG. The S5-S6 linker of repeat I is a critical determinant of L-type Ca2+ channel conductance. Biophys J. 1997 Sep; 73(3):1402-9.