<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">This atom specifier will select the nitrogen of the initial residue of each chain:<div><br></div><div><span class="Apple-tab-span" style="white-space:pre"> </span>protein & @n & @/idatmType=N3+</div><div><br></div><div>It kind of sounds like you may already know your way around a script. Let me know if you need more help with the scripting than the above.</div><div><br></div><div>--Eric</div><div><br><div><span class="Apple-style-span" style="border-collapse: separate; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 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; -webkit-text-decorations-in-effect: none; text-indent: 0px; -webkit-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="5" style="font: normal normal normal 16px/normal Helvetica; "> Eric Pettersen</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="5" style="font: normal normal normal 16px/normal Helvetica; "> UCSF Computer Graphics Lab</font></div><div style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><font face="Helvetica" size="5" style="font: normal normal normal 16px/normal Helvetica; "> <a href="http://www.cgl.ucsf.edu">http://www.cgl.ucsf.edu</a></font></div><br class="Apple-interchange-newline"></div></span></div><div><div>On Jan 6, 2012, at 11:13 AM, michel dedeo wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">Hi,<br><br>I'm trying to measure the distance between the N-termini (or the first known residue) of a batch of dimeric proteins. The two proteins are different chains. I know how to do this by hand, but am exploring different ways to script it. It may be best to avoid using chimera entirely, but I thought I'd check to see if anyone knows a clever way to select the residue closest to the N-terminus when it's not residue #1.<br> <br>Thanks for your help.<br><br>Michel <br> _______________________________________________<br>Chimera-users mailing list<br><a href="mailto:Chimera-users@cgl.ucsf.edu">Chimera-users@cgl.ucsf.edu</a><br>http://plato.cgl.ucsf.edu/mailman/listinfo/chimera-users<br></blockquote></div><br></div><br></body></html>