[gmx-users] CHARMM36 for GMX

[Alex]

Hi all,

I am not entirely sure it's a question for the Gromacs community, as this
is regarding CHARMM36, but it appears that the original forcefield is fine,
while I am confused by its Gromacs version.

Namely this: the MacKerell website distributes a Gromacs version of
CHARMM36 where ffnonbonded.itp has pretty much all default charges set to
zero. Is this called for??

I apologize in advance if this is a dumb or misdirected question, as I've
never worked with CHARMM before.

Thank you,

Alex