[gmx-users] DPPC to CG DPPC

2009-12-15 Thread sunny mishra
Dear All, I have downloaded the 128 DPPC lipid molecules from Dr. Tielmen's Website and I am trying to convert the Atomistic structure to CG structure. For that I am using atom2cg script provided by the martini folks but it doesn't convert the Atomistic structure to CG structure. atom2cg script

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread Justin A. Lemkul
sunny mishra wrote: Dear All, I have downloaded the 128 DPPC lipid molecules from Dr. Tielmen's Website and I am trying to convert the Atomistic structure to CG structure. For that I am using atom2cg script provided by the martini folks but it doesn't convert the Atomistic structure to CG

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread XAvier Periole
I have downloaded the 128 DPPC lipid molecules from Dr. Tielmen's Website and I am trying to convert the Atomistic structure to CG structure. For that I am using atom2cg script provided by the martini folks but it doesn't convert the Atomistic structure to CG structure. atom2cg script

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread sunny mishra
Thanks for the reply. I have another quick question that If I have to do the Position Restrained EM Simulation of CG DPPC lipid then is it done the same way we do for atomistic structure of proteins like by defining the LIPPOSRES in the lipid.mdp file or while using MARTINI forcefield is there any

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread XAvier Periole
No need of position restrained simulation with the CG lipids. CG is very forgiving :)) For proteins it is more delicate. On Dec 15, 2009, at 6:02 PM, sunny mishra wrote: Thanks for the reply. I have another quick question that If I have to do the Position Restrained EM Simulation of CG DPPC

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread sunny mishra
Alright thanks. So should I do it for proteins? On Tue, Dec 15, 2009 at 12:12 PM, XAvier Periole x.peri...@rug.nl wrote: No need of position restrained simulation with the CG lipids. CG is very forgiving :)) For proteins it is more delicate. On Dec 15, 2009, at 6:02 PM, sunny mishra

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread XAvier Periole
Well if you put a protein CG into your DPPC bilayer you'll have to be soft on the start. PR is one way to do it and you can do similar to when doing on a atomistic simulation. On Dec 15, 2009, at 6:13 PM, sunny mishra wrote: Alright thanks. So should I do it for proteins? On Tue, Dec 15,

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread sunny mishra
ok. Thats the step where I am really confused that how to apply the PR on my system file (system file is a combination of CG protein and CG lipid). On Tue, Dec 15, 2009 at 12:16 PM, XAvier Periole x.peri...@rug.nl wrote: Well if you put a protein CG into your DPPC bilayer you'll have to be

Re: [gmx-users] DPPC to CG DPPC

2009-12-15 Thread XAvier Periole
For the steps to go through to have an embedded protein in membrane bilayer Justin has made a nice tutorial ... look in the mail list archive On Dec 15, 2009, at 6:21 PM, sunny mishra wrote: ok. Thats the step where I am really confused that how to apply the PR on my system file (system file