ss="an ">&ensp;</span>form <span  title="" class="an ">&ensp;</span><span  title="ProteinName" class="an ProteinName">Mg</span><span  title="ProteinName" class="an ProteinName">&ensp;</span><span  title="ProteinName, CAP" class="an ProteinName CAP">ATP</span><span  title="" class="an ">&ensp;</span>complexes <span  title="" class="an ">&ensp;</span>addition <span  title="" class="an ">&ensp;</span>of <span  title="" class="an ">&ensp;</span>one <span  title="" class="an ">&ensp;</span>species <span  title="