On 11/6/12 12:12 PM, Ali Alizadeh wrote:
Dear All users

1- Do these parameters strongly impact on my final results?

rlist
rcoulomb
rvdw


Yes, potentially very strongly.

2- Are these parameters independent from type of system and only
dependent to type of the force fields?


Yes.

3- I want to use gromos 45a3 ff but i do not know these parameters,


Have you read the article in which 45A3 was derived? It spells out precisely what you need to do.

http://onlinelibrary.wiley.com/doi/10.1002/jcc.1078/abstract

-Justin

--
========================================

Justin A. Lemkul, Ph.D.
Research Scientist
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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