lina wrote:
Hi,
For group A, b, C.
It's no doubt can get hb forming number between A-b, b-C. b-(A or C).
But I don't know how to get the number of residues of b forming both
with A and B at the same time. namely b-A&C, not with AC group.
There's no direct way to do it, but from the output files of g_hbond it can be
done. You'd need the .xpm files of A-C and B-C hydrogen bonds, and write some
script that parses the .xpm files, and whenever there is an entry of A-C in the
same frame as B-C, then you have a hydrogen bond mediated between the two.
There's lots of discussion in the list archive about water-mediated hydrogen
bonds that is likely applicable here.
Note that if you're using g_hbond in version 4.5, there is an important bug that
was fixed just yesterday:
http://lists.gromacs.org/pipermail/gmx-users/2011-May/061249.html
-Justin
Thanks,
--
Best Regards,
lina
--
========================================
Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
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