I m building a protein with a template of relatively low identity score, but good HCA alignement . I want to restraint parts of my protein to be in beta strands.

I tried

SUBROUTINE ROUTINE = 'special_restraints' SET ADD_RESTRAINTS = on MAKE_RESTRAINTS RESTRAINT_TYPE = 'strand', RESIDUE_IDS = '60' '64' MAKE_RESTRAINTS RESTRAINT_TYPE = 'strand', RESIDUE_IDS = '71' '76' RETURN END_SUBROUTINE

and

SUBROUTINE ROUTINE = 'special_restraints' SET ADD_RESTRAINTS = on MAKE_RESTRAINTS RESTRAINT_TYPE = 'strand', RESIDUE_IDS = '60' '64' MAKE_RESTRAINTS RESTRAINT_TYPE = 'strand', RESIDUE_IDS = '71' '76' MAKE_RESTRAINTS RESTRAINT_TYPE = 'SHEET', ATOM_IDS = 'N:60' 'O:76', SHEET_H-BONDS = -5 RETURN END_SUBROUTINE

in the top file, but beta strands are not in any of my models, nor it is in the structure .ini . Is it possible that the restraint is too 'heavy' for the molecule?