Dear gromacs users,<br><br> For one of my residues i have two types of dihedral functions, i.e C-C dihedrals are in periodic type and C-O dihedrals are in the Ryckaert-bellemans type, now i want to generate the topology file for this residue is it possible to use the two dihedral function types for this residue. I have tried by using two different dihedraltypes directives one is for the periodic type and another one is for Ryckaert-Bellemans function, but how can i incorporate the two functional types in the dihedrals section of the bondedtypes directive in aminoacids.rtp.<br>
<br>or is there any methods in gromacs to convert one dihedral functional form to the other.<br><br><br><br>Thank you,<br><br>Regards,<br>Ramesh. <br>