Model optimization
Energy minimization was done in MOE (Molecular Operating Environment
suite) initially using the Amber99 force field implemented
into the same package, up to an RMSD gradient of 0.0001 to remove
the geometrical strain. The model was subsequently solvated with SPC
water using the truncated octahedron box extending to 7 Å from the
model and molecular dynamics were performed after that for 200 ns,
at 300 K, 1 atm with 2 fs step size, using the NVT ensemble in a canonical
environment. NVT stands for Number of atoms, Volume and Temperature
that remain constant throughout the calculation. The results
of the molecular dynamics simulation were collected into a database
by MOE and can be further analyzed.