[gmx-users] How restrain the end-to-end distance in simulation?

[Mehdi Bagherpour]

Dear all,

I am new in Gromacs and would like to restrain the the end-to-end distance
of a bend DNA. I mean I want to restraint the distance between COM of end
base-pairs in simulation.

I would appreciate if you could let me know how to do that.

Cheer,
Mahdi