From: luca (bellucci14_at_unisi.it)
Date: Fri Sep 29 2006 - 05:44:13 CDT
1- The simple method for remove bon is not make bond in psf generation file.
2-You can use PATCH method in CHARMM topology file when make file.psf.
See standard PATCH DISU for make S-S bond and similar.
3-You can remove bond in file.psf.
Search bond section (like this 2909 !NBOND: bonds)
and then remove couple of atom that form bond.
If you remove a bond in psf file, you must check and remove all bending/angle
and torsion involved in bond... attention
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