Re: Heat of Vaporization

From: David A. Case <case.scripps.edu>
Date: Tue, 13 May 2003 08:12:41 -0700

On Mon, May 12, 2003, Karl N. Kirschner wrote:

> The second simulation is one that has a cutoff = 0.0 in
> order to calculate the contribution of internal
> residue based EEL and VDWAALS energies.

Fox and Kollman used an earlier version of Amber that incorporated
residue-based cutoffs, in order to estimate the contributions of the
intra-residue nonbonded terms. [Even then, I doubt that they really ran
constant pressure simulations with zero cutoff, since those would quickly lead
to nonsense.] Anyway, residue-based cutoffs are no longer supported. If
you can find an old version of sander_classic, you could try your calculation
there. Otherwise, I think you will have to modify the code to compute the
intra-residue non-bonded interactions.

...good luck...dac

-- 
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David A. Case                     |  e-mail:      case.scripps.edu
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Received on Tue May 13 2003 - 16:53:00 PDT
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