[gmx-users] position restraint on a plane

[David van der Spoel]

Myunggi Yi wrote:
> Dear users,
> 
> How can I restrain a certain atoms on a plane?
> For example, I want to restrain phosphurus atoms of lipid molecules at 
> z=1.0 nm.
> Is there a way to do this?
> 
You can either freeze in one dimension or position restrain to a plane, 
by setting the force constants appropriately. In that case the atom will 
go out of the plane however.
> 
> -- 
> Best wishes,
> 
> MYUNGGI YI
> ==================================
> KLB 419
> Institute of Molecular Biophysics
> Florida State University
> Tallahassee, FL 32306
> 
> Office: (850) 645-1334
> http://www.scs.fsu.edu/~myunggi
> 
> 
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-- 
David van der Spoel, Ph.D.
Molec. Biophys. group, Dept. of Cell & Molec. Biol., Uppsala University.
Box 596, 75124 Uppsala, Sweden. Phone:	+46184714205. Fax: +4618511755.
spoel at xray.bmc.uu.se	spoel at gromacs.org   http://folding.bmc.uu.se