Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-22 Thread Sven Jakobtorweihen
th probably don't match exactly what Charmm does. >>>> Since the switching range is so long and this is where a large part >>>> of the dispersion attraction acts, this might have a large effect on >>>> the area. >>>> >>>> Berk >>>

Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-22 Thread Thomas Piggot
100 From: t.pig...@soton.ac.uk <mailto:t.pig...@soton.ac.uk> To: gmx-users@gromacs.org <mailto:gmx-users@gromacs.org> Subject: Re: [gmx-users] CHARMM36 lipid bilayers Hi Sven, I have also seen similar things from the area per lipid of the bilayers I have run (POPC and DPPC). I would sugge

Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-22 Thread Pär Bjelkmar
ong and this is where a large part >>> of the dispersion attraction acts, this might have a large effect on >>> the area. >>> >>> Berk >>> >>>> Date: Thu, 21 Oct 2010 16:47:21 +0100 >>>> From: t.pig...@soton.ac.uk >>>

Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-22 Thread Thomas Piggot
7:21 +0100 From: t.pig...@soton.ac.uk To: gmx-users@gromacs.org Subject: Re: [gmx-users] CHARMM36 lipid bilayers Hi Sven, I have also seen similar things from the area per lipid of the bilayers I have run (POPC and DPPC). I would suggest you try running with the CHARMM TIP3P water (tips3p.itp) and

Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-22 Thread Sven Jakobtorweihen
ton.ac.uk > > To: gmx-users@gromacs.org > > Subject: Re: [gmx-users] CHARMM36 lipid bilayers > > > > Hi Sven, > > > > I have also seen similar things from the area per lipid of the bilayers > > I have run (POPC and DPPC). I would suggest you try running w

RE: [gmx-users] CHARMM36 lipid bilayers

2010-10-22 Thread Berk Hess
have a large effect on the area. Berk > Date: Thu, 21 Oct 2010 16:47:21 +0100 > From: t.pig...@soton.ac.uk > To: gmx-users@gromacs.org > Subject: Re: [gmx-users] CHARMM36 lipid bilayers > > Hi Sven, > > I have also seen similar things from the area per lipid of the bi

Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-21 Thread Thomas Piggot
Hi Sven, I have also seen similar things from the area per lipid of the bilayers I have run (POPC and DPPC). I would suggest you try running with the CHARMM TIP3P water (tips3p.itp) and see if you get values which are closer to the ones published in the paper you mention. This will be discussed i

Re: [gmx-users] CHARMM36 lipid bilayers

2010-10-21 Thread Sven Jakobtorweihen
settings in Gromacs. > What Charmm settings are you trying to mimic? > > Berk > > > Date: Thu, 21 Oct 2010 15:03:51 +0200 > > From: jakobtorwei...@tuhh.de > > To: gmx-users@gromacs.org > > Subject: [gmx-users] CHARMM36 lipid bilayers > > > > Dear gmx-us

RE: [gmx-users] CHARMM36 lipid bilayers

2010-10-21 Thread Berk Hess
Hi, You have very strange and complex cut-off settings in Gromacs. What Charmm settings are you trying to mimic? Berk > Date: Thu, 21 Oct 2010 15:03:51 +0200 > From: jakobtorwei...@tuhh.de > To: gmx-users@gromacs.org > Subject: [gmx-users] CHARMM36 lipid bilayers > &

[gmx-users] CHARMM36 lipid bilayers

2010-10-21 Thread Sven Jakobtorweihen
Dear gmx-users, recently Pär Bjelkmar and Thomas Piggot have generated force field files for Charmm36 lipids. I run some simulations to find the best run parameters and to check if the results of the original Charmm36 lipid article [Klauda et al., J. Phys Chem. B, 2010, 114, 7830) can be reproduce