Re: [AMBER] calculating rotational diffusion for a portion in a lipid

From: David A Case <case.biomaps.rutgers.edu>
Date: Wed, 5 Feb 2014 07:45:29 -0500

On Wed, Feb 05, 2014, Vijay Manickam Achari wrote:
>
> I wish to seek some help for calculating rotational diffusion for a
> small portion of my lipid in a lipid bilayer. 

> rotdif nvecs 1000 ref [avg] :1.C21, C24 \
                             ^^^^^^^^^^^^^

This might be the problem: there should not be a space in the atom
mask. Be sure that (once that is corrected) you have at least four atoms
in the <refmask> -- you need that to get well-defined rotation matrices.

...good luck....dac


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Received on Wed Feb 05 2014 - 05:00:03 PST
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