Five of the six essential genes involve Na; expectedly, it is the most important element in increasing the ionic conductivity. Beyond Na, S is the second most frequent species, therefore, we will focus our discussion on the structural meaning of the identified genes on these two elements. In addition, we find that the Na contribution within increases consistently with temperature, in each of the genes in which it is present. We will therefore close the following discussion with a perspective on the temperature-dependence of Na mobility.