[gmx-users] K+ atom type is not found in GROMOS96

[Binbin Liu]

Dear all,

I used genion to add K+ ions to the system. Then I started to generate .tpr 
for the simulation. However grompp always gives the warning that "atomtype 
'K' is not found". I checked .atp file under /top and find that there is no 
'k' atom type in ff43a1.atp file. I used GROMOS96 FF to generate .gro and 
topology files. So what shall I do to let the program knows 'k' ?

Thanx in advance!