[gmx-users] where can I download POPC membrane file?

Krzysztof Mlynarczyk mitomaster at gmail.com
Mon May 30 00:06:24 CEST 2011


I just checked with Gromacs 4.5.4 and VMD 1.9:

   1. Download charmm36.ff.tgz from Gromacs downloads and unpack to
   appropriate Gromacs installation folder {root}/share/gromacs/top or your
   working directory.
   2. Open VMD, go to Extensions->Modeling->Membrane builder, choose POPC,
   force field c36 and membrane size. Generate the membrane.
   3. Close VMD and issue command: pdb2gmx -f membrane.pdb -ff charmm36
   -water tip3p (-o ... -i ... -p ... if you don't want default names).

Now sky is the limit :)

Good luck,

2011/5/29 albert <leuven at yeah.net>

> Dear all:
>   I would like to use charmm36 and POPC for membrane protein simulation.
> and I am wondering where can I download charmm36 pre-pribriumed POPC PDB and
> topol file for gromacs?
> Thank you very much
> Best
> --
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