[gmx-users] make_ndx problem

[JMandumpal]

I think, after creating an index file, you can edit it manually clubbing both Phosphorius and Oxygen atoms together ( considering as a single group). Then specify this group while doing analysis.

On Wed, 16 Jul 2008 minnale  wrote :
>   Thanks for the reply, may be this is trivial question to you
>That I know that how to select phosrous atom alone of POPC.
>Normally people are using only phosphrous atom or PO4 group ? for density calculation ,etc analysis. In one article I found that they have done density analysis for PO4 group.
>Could you please tell me which one use it for analysis if PO4 how select by using make_ndx?
>Thanks alot in advance.
>
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