hi,
for all-atom force field ,you may try leaprc.ff99SB or leaprc.ff03
for united-atom model ,you may try leaprc.ff03ua.
Best Wishes,
2008-08-22 
cgji 
发件人: fatima.chami 
发送时间: 2008-08-22  06:07:11 
收件人: amber 
抄送: 
主题: AMBER: all & united atoms force field 
 
Hello all,
For a very large system i want to use both all and united atoms force field on 
different parts of the system 
is this possible in Amber (9 or 10)
best wishes
Fatima 
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Received on Sun Aug 24 2008 - 06:07:45 PDT