a <span  title="" class="an ">&ensp;</span>methylene <span  title="" class="an ">&ensp;</span><span  title="ProteinName, CAP" class="an ProteinName CAP">ATP</span><span  title="" class="an ">&ensp;</span>These <span  title="" class="an ">&ensp;</span>data <span  title="" class="an ">&ensp;</span>indicate <span  title="" class="an ">&ensp;</span>that <span  title="" class="an ">&ensp;</span>P <span  title="" class="an ">&ensp;</span>Y <span  title="" class="an ">&ensp;</span>receptors <span  title="" class="