Re: [AMBER] Mass of LP

From: David A. Case <>
Date: Thu, 19 Mar 2009 11:27:48 +0000

On Wed, Mar 18, 2009, PRADEEP VENKATARAMAN wrote:
> I am trying to simulate a system with two mass less particles having
> different vdW parameters.

This will be difficult with Amber, since it performs molecular dynamics
simulations, and dynamics implies mass.

> I was wondering if LP is treated the same way as EP ?

LP points have mass, and are not treated in any special way. EP points
are massless, but must be rigidly connected to real atoms -- they are
like dummy centers of force.


AMBER mailing list
Received on Fri Mar 20 2009 - 01:14:45 PDT
Custom Search