="comment"># s-adenosyl-l-homocysteine</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;                                              <span class="stringliteral">&#39;GU7&#39;</span>, <span class="comment"># 2-amino-7-[2-(2-hydroxy-1-hydroxymethyl-ethylamino)-ethyl]-1,7-dihydro-purin-6-one</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;                                              <span class="stringliteral">&#39;SAM&#39;</s