oteinName" class="an ProteinName">Mg</span><span  title="" class="an ">&ensp;</span>concentrations <span  title="" class="an ">&ensp;</span>At <span  title="" class="an ">&ensp;</span>a <span  title="" class="an ">&ensp;</span>fixed <span  title="" class="an ">&ensp;</span>concentration <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span><span  title="ProteinName, CAP" class="an ProteinName CAP">ATP</span><span  title="CAP" class="an CAP">&ensp;</span><span  title="CAP" clas