[gmx-users] Fwd: How to calculate protein-surface interaction energy

[James Lord]

Dear users,
I want to calculate the interaction energy (energy versus time) of a
protein (Lysozyme) adsorption process (20ns) on to a solid surface
(polyethylene).
when I use gmx energy -f md.edr -o energy.xvg and then selecting total
energy I end up with a messy graph!!! I am doing some wrong? secondly, Is
there any way to average the energy over the last 10ns of MD trajectory in
Gromacs??
Cheers
James