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<div><span class="750592718-09122013"><font size="2" face="Arial">Dear Elaine:</font></span></div>
<div><span class="750592718-09122013"><font size="2" face="Arial"></font></span> </div>
<div><span class="750592718-09122013"><font size="2" face="Arial">I have a quick question for you. How should I select all the amino acid side chains in a protein but not the backbone (without CA/C1/N/O). How should I write this command?</font></span></div>
<div><span class="750592718-09122013"><font size="2" face="Arial"></font></span> </div>
<div><span class="750592718-09122013"><font size="2" face="Arial">Thanks</font></span></div>
<div><span class="750592718-09122013"><font size="2" face="Arial"></font></span> </div>
<div><span class="750592718-09122013"><font size="2" face="Arial">Ming Zhou</font></span></div>
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