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    <div class="moz-cite-prefix">I don't understand what you are trying
      to do.&nbsp; My best guess is you have a symmetric trimer crystal
      structure and you want to fit a monomer of that atomic model into
      a 5-fold symmetric map.&nbsp; To do that I would open the trimer atomic
      model, delete all except one monomer, fit it into one of the 5
      equivalent positions in the map, then use the "sym" command to
      make the other 4 symmetrically placed copies.&nbsp; If I wanted to
      reduce clashes I'd assign c5 symmetry to the map as described
      before and use the "fitmap" command with the symmetric fitting
      option.<br>
      <br>
      The "volume #0 symmetry c5" command doesn't give any error message
      like "can't find symmetry".&nbsp; So I'm not sure what problem you are
      having.&nbsp; You need to explain it more clearly.<br>
      <br>
      &nbsp;&nbsp;&nbsp; Tom<br>
      <br>
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          <div>Tanks&nbsp; for your kindly answer!But i use the command
            volume #0 symmetry c5,it tell me that cann't find the
            semmetry. The map is made from crystal structure using&nbsp;"fit
            in map".it a trimer,i want to impose 5-symmetry in order to
            fit with my map.<br>
            <br>
            <br>
            <br>
            <br>
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          At 2013-04-17 05:43:04,"Tom&nbsp;Goddard"&nbsp;<a class="moz-txt-link-rfc2396E" href="mailto:goddard@sonic.net">&lt;goddard@sonic.net&gt;</a>
          wrote:<br>
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            <div class="moz-cite-prefix">How about the Chimera command<br>
              <br>
              &nbsp;&nbsp;&nbsp; volume #0 symmetry c5<br>
              <br>
              The symmetry assigned to the map isn't used for much in
              Chimera.&nbsp; It can be used for symmetric fitting but if you
              tell it the wrong symmetry you will just get nonsense
              fits.&nbsp; The other main use of symmetry is to replicate PDB
              models with the sym command.&nbsp; There you can specify the
              symmetry with command options.&nbsp; So I can't think of any
              reason you would use the above command.<br>
              <br>
              &nbsp;&nbsp;&nbsp; <a class="moz-txt-link-freetext"
                href="http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/sym.html">http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/sym.html</a><br>
              <br>
              &nbsp;&nbsp;&nbsp; <a class="moz-txt-link-freetext"
href="http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/volume.html#dimensions">http://www.cgl.ucsf.edu/chimera/docs/UsersGuide/midas/volume.html#dimensions</a><br>
              <br>
              &nbsp; Tom<br>
              <br>
              <br>
              &nbsp;&nbsp;&nbsp; <br>
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                <div>Dear sir</div>
                <div>&nbsp;&nbsp;&nbsp; I have some question in using your excellent
                  Chimera.</div>
                <div>&nbsp;&nbsp; How can i set 5 symmetry to a 3 symmetry map?</div>
                <div>&nbsp;</div>
                <div>&nbsp;</div>
                <div>&nbsp;</div>
                <div>thank you</div>
              </div>
              <br>
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