span  title="ProteinName, CAP" class="an ProteinName CAP">ATP</span><span  title="" class="an ">&ensp;</span>ions <span  title="" class="an ">&ensp;</span>alone <span  title="" class="an ">&ensp;</span>and <span  title="" class="an ">&ensp;</span>that <span  title="" class="an ">&ensp;</span>the <span  title="" class="an ">&ensp;</span>neuronal <span  title="" class="an ">&ensp;</span><span  title="ProteinName" class="an ProteinName">Ca</span><span  title="" class="an ">&ensp;</span>channels <span  title=""