Initial Solvent Energy Minimization Stage
Bulk water and Sodium ions only

&cntrl
! Run Control
  imin = 1,			! Flag to run minimization
  ntmin = 0,			! Minimization algorithm
  maxcyc = 500, 		! maximum # of cycles for minimization

! Input_Output Control
  ntx = 1,			! Read coordinates, but not velocities
  ntpr = 50,			! Every ntpr steps, print human-readable energy info
  ntwx = 0,			! Every ntwx steps, print coordinates to mdcrd file

! Restraints
  ntr = 1,				! Flag for restraining specified atoms
  restraint_wt = 50.0,			! Restraint weight (in kcal/mol-A2) for positional
  restraintmask = '!@H= & !:NA,CL,MG,WAT', ! (restrain only solute)


! Miscellaneous
  cut = 12.0,			! Non-bonded interaction cutoff (in A)
/
&wt type = 'DUMPFREQ', istep1 = 10000, /
&wt type='END' /
DISANG=restrnt.disang
DUMPAVE=restrnt.dumpave
LISTOUT=POUT
LISTIN=POUT