See section 5.6 of the manual, in particular 5.6.2 Basically, you have two .itp files then you call them within the .top file using an include command.
For solvation, doesn't matter what the topology is, solvation involves simply adding water molecules to the coordinate file, .gro So just take the .gro file that contains both the nano tube and protein, then solvate it using genbox as per usual. Catch ya, Dr. Dallas Warren Lecturer Department of Pharmaceutical Biology and Pharmacology Victorian College of Pharmacy, Monash University 381 Royal Parade, Parkville VIC 3010 [EMAIL PROTECTED] +61 3 9903 9524 --------------------------------- When the only tool you own is a hammer, every problem begins to resemble a nail. _______________________________________________ gmx-users mailing list gmx-users@gromacs.org http://www.gromacs.org/mailman/listinfo/gmx-users Please search the archive at http://www.gromacs.org/search before posting! Please don't post (un)subscribe requests to the list. Use the www interface or send it to [EMAIL PROTECTED] Can't post? Read http://www.gromacs.org/mailing_lists/users.php