Lagerspetz K Y, Skyttä M
Acta Physiol Scand. 1979 Jun;106(2):151-8. doi: 10.1111/j.1748-1716.1979.tb06384.x.
Na+ transport across frog skin, measured as short-circuit current (SCC) shows perfect temperature compensation in frogs acclimated to 6 degrees, 12 degrees, and 23 degrees C as SCC values observed at the acclimation temperatures are equal (about 13 muA/cm2). Reacclimation experiments show that this is not a starvation effect. While very little temperature compensation is seen in the activity of Na+, K+-ATPase in epidermal homogenates from frog skins, the activity of Mg2+-ATPase shows inverse compensation at assay temperatures from 4 degrees to 48 degrees C. This ATPase is apparently activated either by Mg2+ or by Ca2+ and it probably controls the passive permeability of epidermal cells. It is suggested that the inverse temperature compensation in the activity of this enzyme is the main mechanism by which the observed perfect temperature compensation of Na+ transport across frog skin occurs.
以短路电流（SCC）衡量的蛙皮钠转运显示，在适应6摄氏度、12摄氏度和23摄氏度的青蛙中存在完美的温度补偿，因为在适应温度下观察到的SCC值相等（约13微安/平方厘米）。再适应实验表明这不是饥饿效应。虽然在蛙皮表皮匀浆中钠钾ATP酶的活性几乎没有温度补偿，但镁ATP酶的活性在4摄氏度至48摄氏度的测定温度下显示出反向补偿。这种ATP酶显然被镁或钙激活，并且它可能控制表皮细胞的被动通透性。有人认为，这种酶活性的反向温度补偿是蛙皮钠转运观察到完美温度补偿的主要机制。
