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*****************************    mini3.in   *****************************
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Minimzing the system with 3 kcal/mol restraints on DNA, 500 steps of 
steepest descent and 500 of conjugated gradient
 &cntrl
   imin=1, ntx=1, irest=0, ntpr=50, ntf=1, ntb=1,
   cut=9.0, nsnb=10, ntr=1, maxcyc=1000, ncyc=500, ntmin=1,
   restraintmask='@CA',
   restraint_wt=3.0,
 &end
 &ewald
    ew_type = 0, skinnb = 1.0,
 &end