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    On 13/12/2011 9:59 PM, Sundargenesan wrote:
    <blockquote
cite="mid:CAGGXVYdYj3FOxhjXO_L=YMMYwCev9neHEC9RvzsqBs9EQtCW9Q@mail.gmail.com"
      type="cite">
      <p class="MsoNormal"><span
          style="font-size:12.0pt;line-height:115%;font-family:&quot;Times
          New Roman&quot;,&quot;serif&quot;">Dear GROMACS users,</span></p>
      <p class="MsoNormal"><span
          style="font-size:12.0pt;line-height:115%;font-family:&quot;Times
          New Roman&quot;,&quot;serif&quot;"><br>
        </span></p>
      <p class="MsoNormal"><span
          style="font-size:12.0pt;line-height:115%;font-family:&quot;Times
          New Roman&quot;,&quot;serif&quot;">Total charge of my system:</span></p>
      <p class="MsoNormal"
        style="margin-bottom:0.0001pt;text-indent:36pt"><span
          style="font-size:12.0pt;font-family:&quot;Times New
          Roman&quot;,&quot;serif&quot;">Including chain
          1 in system: 2041 atoms 207 residues</span></p>
      <p class="MsoNormal"
        style="margin-bottom:0.0001pt;text-indent:36pt"><span
          style="font-size:12.0pt;font-family:&quot;Times New
          Roman&quot;,&quot;serif&quot;">Including chain
          2 in system: 2036 atoms 206 residues</span></p>
      <p class="MsoNormal"
        style="margin-bottom:0.0001pt;text-indent:36pt"><span
          style="font-size:12.0pt;font-family:&quot;Times New
          Roman&quot;,&quot;serif&quot;">Including chain
          3 in system: 44 atoms 1 residues</span></p>
      <p class="MsoNormal"
        style="margin-bottom:0.0001pt;text-indent:36pt"><span
          style="font-size:12.0pt;font-family:&quot;Times New
          Roman&quot;,&quot;serif&quot;">Now there are
          4121 atoms and 414 residues</span></p>
      <p class="MsoNormal"
        style="margin-bottom:0.0001pt;text-indent:36pt"><span
          style="font-size:12.0pt;font-family:&quot;Times New
          Roman&quot;,&quot;serif&quot;">Total mass in
          system 46007.483 a.m.u.</span></p>
      <p class="MsoNormal"
        style="margin-bottom:0.0001pt;text-indent:36pt"><b><span
            style="font-size:12.0pt;font-family:&quot;Times New
            Roman&quot;,&quot;serif&quot;">Total charge in system 0.748
            e</span></b></p>
      <p class="MsoNormal"><span
          style="font-size:12.0pt;line-height:115%;font-family:&quot;Times
          New Roman&quot;,&quot;serif&quot;">&nbsp;</span></p>
      <p class="MsoNormal"><span
          style="font-size:12.0pt;line-height:115%;font-family:&quot;Times
          New Roman&quot;,&quot;serif&quot;">Is it possible to make
          charge in system zero and how?</span></p>
      <br>
    </blockquote>
    <a
href="http://www.gromacs.org/Documentation/Errors#System_has_non-zero_total_charge">http://www.gromacs.org/Documentation/Errors#System_has_non-zero_total_charge</a>
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