[gmx-users] RE: VDW parameters: Martini Forcefield + Implicit Solvation

2011-03-31 Thread emendez
Thanks for your promt reply Mark.
Of course I know what is the format, that is implied in my question
what I would like to know is if anybody has the specific parameters for
the amber forcefield. I will try using the gbr parameters from the sigma
in the  LJ potentials, but  I am not sure about the proper hct (or the
other numbers) hence I am inquiring about this,

Cheers.

Eduardo Mendez

 Greetings,

 I am trying to do Martini Forcefield + Implicit solvation model for a
 large system and I need to supply parameters for the
 [ implicit_genborn_params ]
 section. Which I have not found.

 The syntax is

 Atomtype sar st pi gbr hct

 Can anybody provide me a clue about where I can find these parameters?



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Re: [gmx-users] RE: VDW parameters: Martini Forcefield + Implicit Solvation

2011-03-31 Thread Mark Abraham

On 1/04/2011 10:57 AM, emen...@ucalgary.ca wrote:

Thanks for your promt reply Mark.
Of course I know what is the format, that is implied in my question


Leaving things to implication is risky. People do misunderstand, 
unfortunately. Fault in such cases varies :-) If what you actually want 
is gbr and hct parameters for Martini atom types, everyone can use their 
time better if you ask specifically about that.



what I would like to know is if anybody has the specific parameters for
the amber forcefield. I will try using the gbr parameters from the sigma
in the  LJ potentials, but  I am not sure about the proper hct (or the
other numbers) hence I am inquiring about this,


That manual section mentions the reference sources for these parameters, 
which is why I referred to it. Whether there's any established procedure 
for implicit solvation with Martini is probably a question for 
literature search and speaking with the Martini developers.


Mark


Cheers.

Eduardo Mendez


Greetings,

I am trying to do Martini Forcefield + Implicit solvation model for a
large system and I need to supply parameters for the
[ implicit_genborn_params ]
section. Which I have not found.

The syntax is

Atomtype sar st pi gbr hct

Can anybody provide me a clue about where I can find these parameters?





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