DNA force field parameterized by K. Liebl & M. Zacharias.
The force field can be loaded in leap with the command 'source leaprc.tumuc'. The three files must be either in the current working directory or in the followng directories:
leaprc.tumuc in $AMBERHOME/dat/leap/cmd
tumuc.frcmod in $AMBERHOME/dat/leap/parm
tumuc.lib in $AMBERHOME/dat/leap/lib