Centers of masses

GROMACS version:2019.5
GROMACS modification: Yes/No
I have a protein docked to a homodimer protein and then simualted. Please, I want two calculate the center of mass between the homdimer and protein. I would appreciate if any one can guide me.

Hi @AGawad-123,

Do you have an index file of the molecules?
If so you can use commands such as described in this tutorial

If you are unable to replicate those results, please share the names of your molecules or more information so we can help you in building an index file!