<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; "><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Hi Pasquale,</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><SPAN class="Apple-tab-span" style="white-space:pre"> </SPAN>If your structure all got put into a single residue named UNK, that typically means that your file was missing the @SUBSTRUCTURE section (<A href="http://www.tripos.com/mol2/mol2_format33.html#1370"><FONT class="Apple-style-span" color="#0000EB">http://www.tripos.com/mol2/mol2_format33.html#1370</FONT></A>). There is an entry in our bug database (#3518) for better handling of files with missing @SUBSTRUCTURE sections. I will add your name to that report so you'll know when it gets fixed. For now, you will have to edit your file and add an @SUBSTRUCTURE section "by hand".</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 16px/normal Helvetica; min-height: 19px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">--Eric</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 16px/normal Helvetica; min-height: 19px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "> Eric Pettersen</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "> UCSF Computer Graphics Lab</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "> <A href="mailto:pett@cgl.ucsf.edu"><FONT class="Apple-style-span" color="#0000EB">pett@cgl.ucsf.edu</FONT></A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "> <A href="http://www.cgl.ucsf.edu/"><FONT class="Apple-style-span" color="#0000EB">http://www.cgl.ucsf.edu</FONT></A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 16px/normal Helvetica; color: rgb(0, 0, 219); min-height: 19px; "><BR class="khtml-block-placeholder"></DIV></BODY></HTML>