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[ÇóÖú] vlimit exceeded for step 8367; vmax = 22.4965£¨amber,MD¹ý³ÌÖгöÏÖ´íÎó£©

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vlimit exceeded for step   8367; vmax =    22.4965

     Coordinate resetting (SHAKE) cannot be accomplished,
     deviation is too large
     NITER, NIT, LL, I and J are :    0    2  441  913  914

     Note: This is usually a symptom of some deeper
     problem with the energetics of the system.
ÊäÈëÎļþequi.in£¬ÈçÏ£º

&cntrl
  imin = 0, irest = 1, ntx = 7,
  ntb = 2, pres0 = 1.0, ntp = 1,
  taup = 2.0,
  cut = 12.0, ntr = 0,
  ntc = 2, ntf = 2,
  tempi = 300.0, temp0 = 300.0,
  ntt = 3, gamma_ln = 1.0,
  vlimit = 20 ,
  nstlim = 50000, dt = 0.002,
  ntpr = 1, ntwx = 1, ntwr = 1
/

֮ǰheating£¬cooling,ÊäÈëÎļþÈçÏ£º
heating.in ÈçÏÂ:

  &cntrl
  imin   = 0,
  irest  = 0,
  ntx    = 1,
  ntb    = 1,
  cut    = 12.0,
  ntr    = 1,
  ntc    = 2,
  ntf    = 2,
  tempi  = 0.0,
  temp0  = 450.0,
  ntt    = 3,
  vlimit = 20,
  gamma_ln = 1.0,
  nstlim = 60000, dt = 0.0005,
  ntpr = 1000, ntwx = 100, ntwr = 1000,
/
Hold the 2Q6P fixed
0.0
RES 224 340
END
END

cooling.in  ÈçÏ£º

&cntrl
  imin   = 0,
  irest  = 0,
  ntx    = 1,
  ntb    = 1,
  cut    = 12.0,
  ntr    = 1,
  ntc    = 2,
  ntf    = 2,
  tempi  = 450.0,
  temp0  = 300.0,
  ntt    = 3,
  vlimit = 20,
  gamma_ln = 1.0,
  nstlim = 60000, dt = 0.0005,
  ntpr = 1000, ntwx = 100, ntwr = 1000,
/
Hold the 2Q6P fixed
0.0
RES 224 340
END
END

ͬʱ×öminimizeµÄʱºò£¬ÏÈÏÞ֯סËùÓÐÖØÔ­×Ó×öEM£¬Ö®ºóûÓÐÈκÎÏÞÖÆµÄ×öEM¼ÆËã¡£ÊäÈëÎļþÈçÏ£º
min1_restraint.in  ÈçÏ£º

&cntrl
  imin   = 1,
  maxcyc = 500,
  ncyc   = 250,
  ntb    = 1,
  ntr    = 1,
  cut    = 12.0,
restraintmask = ':1-223@N,CA,C,N1,C4,C7,C3,C8,N2,C9,C12,N4,C22,C23', restraint_wt = 100.0,
/
Hold the 2Q6P fixed
500.0
RES 224 340
END
END

min2_no_constrain.in ÈçÏ£º

&cntrl
  imin   = 1,
  maxcyc = 50000,
  ncyc   = 50000,
  ntb    = 1,
  ntr    = 0,
  cut    = 12.0
/
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