integrator = steep ; Algorithm (steep = steepest descent minimization) emtol = 100.0 ; Stop minimization when the maximum force < 1000.0 kJ/mol/nm emstep = 0.01 ; Minimization step size nsteps = 50000 ; Maximum number of (minimization) steps to perform ; Parameters describing how to find the neighbors of each atom and how to calculate the interactions nstlist = 5 ; Frequency to update the neighbor list and long range forces ns_type = grid ; Method to determine neighbor list (simple, grid) coulombtype = PME ; Treatment of long range electrostatic interactions rcoulomb = 0.7113990804113833 ; Short-range electrostatic cut-off rvdw = 0.7113990804113833 ; Short-range Van der Waals cut-off pbc = xyz ; Periodic Boundary Conditions in all 3 dimensions ;define = -DFLEXIBLE