Dear Modellers,
 
I have used the following subroutine to define tetramers in symmetry. Please tell me how to do it in MODELLER8v0.
 
 
SUBROUTINE ROUTINE = 'defsym'
 
       SET RES_TYPES = 'ALL', ATOM_TYPES = 'MNCH', SELECTION_STATUS = 'INITIALIZE', SELECTION_SEARCH = 'SEGMENT', SYMMETRY_WEIGHT = 1.0
 
       PICK_ATOMS PICK_ATOMS_SET = 2, SELECTION_SEGMENT = '37:' '322:'
       PICK_ATOMS PICK_ATOMS_SET = 3, SELECTION_SEGMENT = '323:' '608:'
       DEFINE_SYMMETRY ADD_SYMMETRY = on off
       PICK_ATOMS PICK_ATOMS_SET = 2, SELECTION_SEGMENT = '323:' '608:'
       PICK_ATOMS PICK_ATOMS_SET = 3, SELECTION_SEGMENT = '609:' '894:'
       DEFINE_SYMMETRY ADD_SYMMETRY = on off
       PICK_ATOMS PICK_ATOMS_SET = 2, SELECTION_SEGMENT = '609:' '894:'
       PICK_ATOMS PICK_ATOMS_SET = 3, SELECTION_SEGMENT = '895:' '1180:'
       DEFINE_SYMMETRY ADD_SYMMETRY = on off
       PICK_ATOMS PICK_ATOMS_SET = 2, SELECTION_SEGMENT = '895:' '1180:'
       PICK_ATOMS PICK_ATOMS_SET = 3, SELECTION_SEGMENT = '37:' '322:'
       DEFINE_SYMMETRY ADD_SYMMETRY = on off
 
 RETURN
END_SUBROUTINE
 
 
Thanks in advance.
 
Cheers,
Han