Hi Giacomo,
The two sulphur atoms have to be at a proper distance to be recognized
as involved in a S-S bond. In your case, if you're certain that there
should be a bond, you have to edit the file specbond.dat, find the
entry which links two cysteine residues and set the distance to the
actual distance in your structure (there is a 10% margin).
Hope it helps,
Tsjerk
On 11/10/06, Giacomo Bastianelli <[EMAIL PROTECTED]> wrote:
Dear users,
I have just found that gromacs protonate the -S of
my Cys and I would like to have it deprotonated
to form a disulphide bond (It is present in the original
pdb file).
Is there any way I can modify it?
thanks in advance,
Giacomo
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--
Tsjerk A. Wassenaar, Ph.D.
post-doc
NMR, Utrecht University,
Padualaan 8,
3584 CH Utrecht, the Netherlands
P: +31-30-2539931
F: +31-30-2537623
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