On 2011-05-27 17.50, simon sham wrote:
Hi,
I have recently done two simulations on a protein at high temperature
near its melting temperature. At the beginning I used CHARMM forcefield,
and then OPLSAA to double check the results. There are some differences
in the structures between the forcefield used. I know different
forcefields can give different results. All parameters in the
simulations were the same except the forcefield. Is there anyway I can
tell which forcefield gives more reliable results?
Thanks for the insights,
Simon
You might want to check
Oliver Lange, David van der Spoel and Bert de Groot: Scrutinizing
Molecular Mechanics Force Fields on the Microsecond Timescale With NMR
Data Biophys. J. 99 pp. 647-655 (2010)
where we compare a number of FFs to NMR data.
--
David van der Spoel, Ph.D., Professor of Biology
Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone: +46184714205.
sp...@xray.bmc.uu.se http://folding.bmc.uu.se
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