Figure 7.
![Figure 7. Ca2+ dependence of the electrical capacitance energy in Scheme 4. (A) 〈q〉-V series for [Ca2+]i = 10−3 to 103 µM (step size = 1.59×). The area of the dashed rectangle is equal to −ΔqT μΔVM = −4(ΔWC + ΔWE), also given by the area of the shaded region. (B) Semilog plot of WC[q] versus [Ca2+]i derived from equilibrium curves in A. The lower and upper limits of the curve are given by WC[q]μ(−) = −ΔGL − 4(ΔGJ1 + ΔGJ2 + ΔWD + ΔWG) and WC[q]μ(+) = −ΔGL − 4(ΔGJ1 + ΔGJ2 + ΔWC + ΔWD + ΔWE + ΔWG).](https://cdn.rupress.org/rup/content_public/journal/jgp/141/1/10.1085_jgp.201210859/4/jgp_201210859_fig7.jpeg?Expires=1773555066&Signature=f~PqDenOJIuuLjKLy2uqJjHcbQqMoTnr809FCI1SQT6KdgbLDq52dRA-DEKcI~tWfxomS7A-orqvIEdN732UBeYCo8qaL9Ik9uLD~AHFc3sCwLW-K~fO8LZYmGgwW8pW3scHM4PNpKXetG3aAVuStlIutq12KuoUbVZYcMjuG9RqFAYvx8sxV48NHrCyOxMgOain70A2-8qzG408oWvuVBrG~KEIbcE-HeFTPCqjBn3EJqnbkmP-xzT~GpuyLvIGQVPV1ApbnM2c6YIS8iyEqIB7-E8JyReC-K15xE88eoMuLV74iMxVmtEGymB2CL3D4cBn~H7diKuenrd2626rNQ__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Ca2+ dependence of the electrical capacitance energy in Scheme 4. (A) 〈q〉-V series for [Ca2+]i = 10−3 to 103 µM (step size = 1.59×). The area of the dashed rectangle is equal to −ΔqT μΔVM = −4(ΔWC + ΔWE), also given by the area of the shaded region. (B) Semilog plot of WC[q] versus [Ca2+]i derived from equilibrium curves in A. The lower and upper limits of the curve are given by WC[q]μ(−) = −ΔGL − 4(ΔGJ1 + ΔGJ2 + ΔWD + ΔWG) and WC[q]μ(+) = −ΔGL − 4(ΔGJ1 + ΔGJ2 + ΔWC + ΔWD + ΔWE + ΔWG).
