dear amber ., 
I am not aware of the concentration of ions added to the water box 
in the dynamics 
how to add a particular concentration of ions in 
it ., ?
actually before running dynamics 
the charge should be neutral 
so if i wish to add Mg then i have to neutralise it with some -ve charge 
but what about  adding sodium  in dna to neutralize ... and if i want some more ions 
i have to do it again 
am i right ? 
thanks in advance 
balaji.
UOM
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Received on Sun Dec 14 2008 - 01:10:46 PST