[gmx-users] Sphingomyelin parameters

[Mark Abraham]

Jian Dai wrote:
> Hi, everyone:
> I'm trying to get the force field for sphingomyelin by modifying the 
> force filed of DPPC from Dr. Peter Tieleman's website.
> But for LJ pairs, there's no description for LC2--OA, N--LP2, N--LH1 
> and  OA--LH1 in the [pairs] section from lipid.itp. Where can I get the 
> parameters for these pairs?

Check out http://wiki.gromacs.org/index.php/Parameterization and 
http://wiki.gromacs.org/index.php/Force_Fields

Mark