Dear gmx-users:<br> I am trying to get the topology for a chromophore exist in the Green fluoresent protein. Although to some extent i got success in building the parameters in the 'ff*.rtp' file,<br>i got struck in building 'atom type parameter' ( ff*.atp). I am trying to use Charmm force field. Can anyone help me. Thank you.<br>
<br><br>with regards,<br>Rama<br clear="all"><br><br>