<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:12pt"><div><span>Dear gmx users,</span></div><div><br><span></span></div><div><span>ACE is defined in CHARMM-27 .rtp file, but I don't see this residue in CHARMM-36 .rtp file . Is it OK, if I add the ACE from CHARMM-27 into CHARMM-36? And use the CHARMM-27 [ACE] parameters in CHARMM-36?<br></span></div><div> <br>Thanks in advance.<br></div><div>Sincerely,<br>Shima</div></div></body></html>