Re: [gmx-users] question about all atoms lipid molecule structure and force field

2009-10-14 Thread Justin A. Lemkul



Amit Choubey wrote:

Thank you,

Is it really necessary for me to use Charmm FF for all atom calculations 
on lipids? 



You can use whatever model you want, provided it's valid.  Just so happens that 
most people who use all-atom models of lipids use CHARMM.


The reason I am asking this is because it will require me to create 
gromacs compatible FF files of the Charmm FF . I did find two perl 
scripts which can do probably handle that but i am wondering if the 
compatible FF are already up on gromacs website somewhere.




No one ever said life was easy :)  CHARMM support is under development, you can 
get the source via the git repositories, but I don't know its current status.


-Justin



amit


2009/10/14 LuLanyuan mailto:lulany...@msn.com>>

Hi,
You can find some configurations here:
http://persweb.wabash.edu/facstaff/fellers/
And I think you can use Charmm FF.
Lanyuan


Date: Wed, 14 Oct 2009 11:29:26 -0700
From: kgp.a...@gmail.com <mailto:kgp.a...@gmail.com>
To: gmx-users@gromacs.org <mailto:gmx-users@gromacs.org>
Subject: [gmx-users] question about all atoms lipid molecule
    structure and force field


Dear all,

I have been trying to search for an all atom DPPC sructure
(including the missing Hydrogens of long chain hydrocarbons) and
then do an all atoms md simulation on it. I havent yet found any
such structure or any force field that could be used for it on the
internet. Is anybody familiar with any such work ?

Is there any all atom model for hydrocarbons which is incorporated
in Gromacs? I am not 100 % sure about it.

I want to do this to parametrize another force field which
essentially uses all atom model.

Thank you,
Amit


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--


Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin


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Re: [gmx-users] question about all atoms lipid molecule structure and force field

2009-10-14 Thread Amit Choubey
Thank you,
Is it really necessary for me to use Charmm FF for all atom calculations on
lipids?

The reason I am asking this is because it will require me to create gromacs
compatible FF files of the Charmm FF . I did find two perl scripts which can
do probably handle that but i am wondering if the compatible FF are already
up on gromacs website somewhere.


amit


2009/10/14 LuLanyuan 

>  Hi,
> You can find some configurations here:
> http://persweb.wabash.edu/facstaff/fellers/
> And I think you can use Charmm FF.
> Lanyuan
>
> --
> Date: Wed, 14 Oct 2009 11:29:26 -0700
> From: kgp.a...@gmail.com
> To: gmx-users@gromacs.org
> Subject: [gmx-users] question about all atoms lipid molecule structure and
> force field
>
>
> Dear all,
> I have been trying to search for an all atom DPPC sructure (including the
> missing Hydrogens of long chain hydrocarbons) and then do an all atoms md
> simulation on it. I havent yet found any such structure or any force field
> that could be used for it on the internet. Is anybody familiar with any such
> work ?
>
> Is there any all atom model for hydrocarbons which is incorporated in
> Gromacs? I am not 100 % sure about it.
>
> I want to do this to parametrize another force field which essentially uses
> all atom model.
>
> Thank you,
> Amit
>
> --
> Messenger保护盾2.0,更安全可靠的Messenger聊天! 现在就下载! <http://im.live.cn/safe/>
>
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> Please search the archive at http://www.gromacs.org/search before posting!
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> www interface or send it to gmx-users-requ...@gromacs.org.
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>
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RE: [gmx-users] question about all atoms lipid molecule structure and force field

2009-10-14 Thread LuLanyuan

Hi,
You can find some configurations here:
http://persweb.wabash.edu/facstaff/fellers/
And I think you can use Charmm FF.
Lanyuan

Date: Wed, 14 Oct 2009 11:29:26 -0700
From: kgp.a...@gmail.com
To: gmx-users@gromacs.org
Subject: [gmx-users] question about all atoms lipid molecule structure and  
force field

Dear all,
I have been trying to search for an all atom DPPC sructure (including the 
missing Hydrogens of long chain hydrocarbons) and then do an all atoms md 
simulation on it. I havent yet found any such structure or any force field that 
could be used for it on the internet. Is anybody familiar with any such work ?

Is there any all atom model for hydrocarbons which is incorporated in Gromacs? 
I am not 100 % sure about it.
I want to do this to parametrize another force field which essentially uses all 
atom model.

Thank you,Amit
_
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[gmx-users] question about all atoms lipid molecule structure and force field

2009-10-14 Thread Amit Choubey
Dear all,
I have been trying to search for an all atom DPPC sructure (including the
missing Hydrogens of long chain hydrocarbons) and then do an all atoms md
simulation on it. I havent yet found any such structure or any force field
that could be used for it on the internet. Is anybody familiar with any such
work ?

Is there any all atom model for hydrocarbons which is incorporated in
Gromacs? I am not 100 % sure about it.

I want to do this to parametrize another force field which essentially uses
all atom model.

Thank you,
Amit
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