 <span class="stringliteral">&#39;AMP&#39;</span>,  <span class="comment"># adenosine monophosphate</span></div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;                                              <span class="stringliteral">&#39;PI&#39;</span>,  <span class="comment"># hydrogenphosphate ion</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                                              <span class="stringliteral">&#39;MH3&#39;</s