[AMBER] Constructing a single Zwitterion in xleap

From: Robert Molt <rwmolt07.gmail.com>
Date: Sun, 01 Feb 2015 00:36:16 -0500

I do beg pardon if this answer is obvious; I could not discern this from
the AmberTools manual.

Is it possible, in using the xleap interface, to construct a sequence
composed of a single amino acid in zwitterion form? It's clear how to
make zwitterions for two or more amino acids, but I have an unusual
purpose for which I need a single amino acid zwitterion..

If this is not an option, can one advise how one might construct a
zwitterion form in an easily recognizable for the prmtop file?

I am familiar only with writing my own parameters from scratch for a
defined unit (hoping not to reinvent the wheel here), loading a pdb, or
creating a polypeptide through xleap.

Thank you for your time,

-- 
Dr. Robert Molt Jr.
r.molt.chemical.physics.gmail.com
Nigel Richards Research Group
Department of Chemistry & Chemical Biology
Indiana University-Purdue University Indianapolis
LD 326
402 N. Blackford St.
Indianapolis, IN 46202
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Received on Sat Jan 31 2015 - 22:00:03 PST
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