[AMBER] restraining membrane diffusion

From: Jose Borreguero <borreguero.gmail.com>
Date: Wed, 22 Feb 2012 15:09:00 -0500

Dear Amber users,

While simulating a DLPC membrane, I noticed that it tends to diffuse along
the normal (Z-axis) component. Is there a 'standard' restrain that is used
to prevent such diffusion?
The first option I thought was to restrain the center of mass of the whole
membrane along the Z-axis, but I don't know what is a reasonable value for
the force constant.
If anyone has any experience dealing with this kind of problem, please do
reply.

Best regards,
Jose M. Borreguero
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Received on Wed Feb 22 2012 - 12:30:01 PST
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