[gmx-users] lack of opls parameter of amino group

[Mark Abraham]

zhuliang at tju.edu.cn wrote:
> Hi, how are you!I want to perform a molecular dynamics simulation of a
> aminoglycoside antibotic under force field of opls. However, I can't get the opls
> parameter about amino group attached to the pyranose ring. I hope someone will
> give me a hand and Thank you in advance!

Your best bet is to check out 
http://wiki.gromacs.org/index.php/Parameterization and be prepared to 
work hard. You should general GROMACS experience before attempting to do 
  modify things to treat this system.

Mark