Sarah Witzke wrote:
<snip>
ARRGH, I'm sorry, things went too quick :-( So the lifetime in average per
hbond is 628.571 ps?
Yes, per the calculation. For a bit more about the analysis, see the "Please
read and cite" notices, as well as this thread:
http://lists.gromacs.org/pipermail/gmx-users/2009-February/039955.html
The note about the correlation function would imply that the correlation
function itself has not converged until its value is < 0.001. This is usually a
result of insufficient data, either the length of the simulation, or number of
frames analyzed (based on the spacing of the frames).
Hmm, so using 120 ns simulation from a standard .xtc file (timestep of 10 ps) is not long enough. Perhabs I should try the original .trr file... The .xtc file I'm using only contains DMPC and the small molecule, no solvent - I can't see this would make a difference in this case, am I right?
The correlation will depend on how much the interactions are changing over the
period you analyzed. If you are analyzing a small molecule and DMPC, water
should not matter.
-Justin
--
========================================
Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
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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