EC₅₀(Ca²⁺) values and Hill coefficients for interactions between CaM and GPER’s submembrane domains.^*

Data are means ± SD of at least 3 independent determinations. *All EC50(Ca2+) values are significantly different (p<0.05) from one another; Hill coefficients for GPER83–93sp1 and GPER83–93sp2 are different (p<0.05) from the rest. ¶, significantly different (p<0.05) from GPER83–93 (Species 1).