D><IMG SRC=terminator.gif>
    <TD><IMG SRC=utr.gif>
    <TD><IMG SRC=primersite.gif>
  </TR>
  <TR ALIGN=CENTER>
    <TD><A NAME=d:cds>cds</A>
    <TD><A NAME=d:terminator>terminator</A>
    <TD><A NAME=d:utr>utr</A>
    <TD><A NAME=d:primersite>primersite</A>
  </TR>
  <TR ALIGN=CENTER>
    <TD><IMG SRC=restrictionsite.gif>
    <TD><IMG SRC=fivepoverhang.gif>
    <TD><IMG SRC=threepoverhang.gif>
    <TD><IMG SRC=noverhang.gif>
  </TR>
  <TR ALIGN=CENTER>
    <TD><A NAME=d:restrictionsite>restrictionsite</