[gmx-users] If the system net charge is zero, do I need to add ions?
"Dr. Ramón Garduño-Juárez"
ramon at fis.unam.mx
Sat Aug 27 01:27:39 CEST 2011
Hi GROMACS users,
I've two questions. My simulation box contains a DMPC lipid bilayer,
water molecules, intramembrane protein and a ligand protein. The net
charge of the system is zero. Is it necessary to add ions to this system?
The intramembrane protein (made of two chains) has a net charge of -1
and the ligand protein has a net charge of +1, thus the net charge of zero.
The next question is too naive, but if the ions are needed, What ion is
better for the dynamics K or Na?
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