[AMBER] How to define reaction coordinate in Umbrella sampeling

From: Sindrila Dutta banik <sindrila.duttabanik.yahoo.com>
Date: Fri, 28 Jun 2013 15:42:08 +0800 (SGT)

Dear all,

I want to umbrella sampling for which I want to consider difference of distances as a reaction coordinate. For this I use the following input:

 &rst
  iat=12230,12245,12219,12245
  r1=-10.0, r2=-0.5, r3=-0.5, r4=10.0,
  rk2=1000, rk3=1000,
 &end

Is it correct? It seems like a torsion angle restrain input. Shall I have to mention "rstwt" ? If yes then how; actually I use first "rstwt=-1.0,1.0," but it gives the following error. 

 At line 1007 of file nmr_calls.f90 (unit = 33, file = 'dis50')
Fortran runtime error: Cannot match namelist object name rstwt

Please let me know the correct one. 

With regards

Sindrila
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Received on Fri Jun 28 2013 - 01:00:04 PDT
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