polyA-polyT 10-mer: initial minimisation solvent + ions
 &cntrl
  imin   = 1,
  maxcyc = 1000,
  ncyc   = 500,
  ntb    = 1,
  ntr    = 1,
  cut    = 8.0
 /
Hold the DNA fixed
500.0
RES 1 21
END
END