<html><head></head><body><div class="yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div dir="ltr" data-setdir="false">Dear Ms/Mr helper:</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">I encounted an issue when I try to fuse one (G4S)x linker to one of the Fc "C" terminal using "join bond". Once selected the "C" atom on Fc C terminal and "N" atom on (G4S)x N terminal and hit "apply" button, the Fc dimer fall apart but the (G4S)x linker was connected to the C terminal of Fc. How to avoid the Fc dimer from falling apart? </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Thanks very much for your help</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Sincerely </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">TW</div></div></body></html>