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. 2003 May;84(5):2999–3006. doi: 10.1016/S0006-3495(03)70026-5

TABLE 3.

ΔGion of interaction of TTX and STX and the trapped ions Na+ and Ca2+

ΔGion
Na+ Ca2+ rCa/rNa
TTX 0.598 kT 1.514 kT 0.790
STX 0.821 kT 2.120 kT 0.775
rTTX/rSTX 0.686 0.700

ΔGion was calculated according to Eq. 15, and is expressed in kT. The resulting distance ratios for the toxin-trapped ion distances are also presented.