[gmx-users] Implicit solvent - Gromacs 4.5.4

[Steven Neumann]

Dear Gmx Users,

I am using Gromacs 4.5.4 and I would like to implement implicit solvent for
folding of my protein. I read mailing list and it is still confusing for
me.
Is it proper to use counterions within the system? If not, how can I obtain
netral system?
Do we use cut off for vdw and coulombic interactions?
What kind of integrator should be used with a timestep?

I will appreciate an mdp file for protein folding! Thank you

Steven
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