"" class="an ">&ensp;</span>H <span  title="" class="an ">&ensp;</span>and <span  title="" class="an ">&ensp;</span><span  title="ProteinName" class="an ProteinName">Mg</span><span  title="" class="an ">&ensp;</span>ions <span  title="" class="an ">&ensp;</span>did <span  title="" class="an ">&ensp;</span>not <span  title="" class="an ">&ensp;</span>exert <span  title="" class="an ">&ensp;</span>any <span  title="" class="an ">&ensp;</span>blocking <span  title="" class="an ">&ensp;</span>effect <span  titl