AMBER Archive (2008)

Subject: Re: AMBER: Example .prepi file for nonstandard amino acids

From: David A. Case (
Date: Fri May 02 2008 - 17:54:03 CDT

On Fri, May 02, 2008, wrote:

> However, the connectivities produced from a PDB of nitrotyrosine (created in
> SPARTAN) end up being incorrect. Our attempts to modify a normal tyrosine
> prepi file have also ended in problems. (Our tyrosine prepi file works well
> but once we change it, problems occur).

I suggest you use mol2 files, that are much simpler to work with than prepi
files. (We are trying to deprecate that file format anyway).

In mol2 files, you just have a list of bonds, making it easy to examine and
modify connectivities, etc.

...good luck...dac

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