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    <TD bgColor=#343e44 width=50>&nbsp;</TD>
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                              <DIV><FONT size=2><FONT face=宋体><SPAN 
                              id=_FoxToName>All 
                              gmx-users</SPAN></FONT></FONT></DIV>
                              <DIV><FONT face=宋体 size=2> &nbsp;&nbsp; I am a 
                              novice of Gromacs. Now,my job is to study the 
                              dynamcis of a ion channel.This channel is composed 
                              of esters.How can I create its *.itp 
                              file?Should&nbsp; I create a itp of monomer&nbsp; 
                              or&nbsp;or all of ploymer?</FONT></DIV>
                              <DIV><FONT size=2>&nbsp; Second, I think the amino 
                              acids' rtps are made from&nbsp;the coordinates of 
                              Gly-X-Gly.Here X denotes the amino acid that we 
                              need to create its rtp file. If&nbsp; I want to 
                              create a ester's itp,shoud I calculate the 
                              coordinates of ester-ester-ester.</FONT></DIV>
                              <DIV>&nbsp;</DIV>
                              <DIV><FONT face=宋体 size=2>        </FONT></DIV>
                              <DIV>&nbsp;</DIV>
                              <DIV>&nbsp;</DIV>
                              <DIV><FONT face=宋体><FONT size=2><FONT face=宋体><A 
                              href="mailto:nanyu101@sina.com">nanyu101@sina.com</A></FONT></FONT></DIV>
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                              <DIV><FONT face=宋体><BR><FONT size=2>&nbsp; 
                                        &nbsp;&nbsp;&nbsp;&nbsp; 
                              2002-11-17</FONT></FONT></DIV><FONT 
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