<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>On Jun 27, 2011, at 11:25 AM, George Tzotzos wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Can anyone provide some help.<div><br></div><div>I'm trying to select two specific oxygen atoms in different residues (98 and 142).</div><div><br></div><div>The command <b>select :142@O1 :98@O1</b> selects only 1 atom (that of residue 142).</div><div><br></div><div>I tried <b>select :98@O1</b> only. The output is <b>"selection" cleared</b>.</div><div><br></div><div>I'm rather puzzled. Any help would be greatly appreciated</div></div></blockquote><br></div><div>Hi George,</div><div><span class="Apple-tab-span" style="white-space:pre"> </span>Chimera either believes there is no residue 98 in your structure, or that there is no atom named "O1" in that residue. Try this:</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>select :98</div><div><br></div><div>Does anything get selected? If that does select a residue, then do this:</div><div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>label sel</div><div><br></div><div>Is there an "O1" among the atoms that get labeled?</div><div><br></div><div>--Eric</div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 16px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica"><span class="Apple-converted-space"> <span class="Apple-converted-space"> </span></span>Eric Pettersen</font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica"><span class="Apple-converted-space"> <span class="Apple-converted-space"> </span></span>UCSF Computer Graphics Lab</font></p><p style="margin: 0.0px 0.0px 0.0px 0.0px"><font face="Helvetica" size="5" style="font: 16.0px Helvetica"><span class="Apple-converted-space"> </span><a href="http://www.cgl.ucsf.edu">http://www.cgl.ucsf.edu</a></font></p><br class="Apple-interchange-newline"></div></span> </div><br></body></html>