[AMBER] problem with MM-PBSA

From: Maryam Hamzehee <maryam_h_7860.yahoo.com>
Date: Sun, 19 Dec 2010 19:06:33 +0800 (SGT)

Dear All
 
I am trying to calculate the binding energy of ligand-receptor complex and I mutated one of the residues to ALA, after extracting the coordinates of ligand, receptor and complex, I tried to run the $AMBERHOME/exe/mm_pbsa.pl binding_energy.mmpbsa > binding_energy.log, after that the program stopped suddenly while it was calculating the energy of ligand. I checked everything related to files.
 
Here is the file of pbsa_lig.1.out:
 
.
.
.
-------------------------------------------------------------------------------
   4.  RESULTS
--------------------------------------------------------------------------------
  NB-update: residue-based nb list     3771
  NB-update: atom-based nb list     2847

 ======== Setting up Grid Parameters ========
 Using bounding box for grid setup
 Bounding Box Center:      72.000    57.000    42.000
 Xmin, Xmax, Xmax-Xmin:    66.637    76.401     9.764
 Ymin, Ymax, Ymax-Ymin:    50.230    63.667    13.437
 Zmin, Zmax, Zmax-Zmin:    29.381    53.914    24.533
   beginning box center at level      1     72.000    57.000    42.000
   beginning box center at level      2     72.000    57.000    42.000
 Grid dimension at level     1     3    5    7
 Grid origin corrected at level     1     56.000    33.000    10.000
 Grid dimension at level     2    19   21   33
 Grid origin corrected at level     2     62.000    46.000    25.000
PB Bomb in setgrd(): focusing grid too large    2
reset fillratio to a larger number 2.000

What canI do in this regard!
Any help would be highly appreciated.
 
Cheers,
Maryam


      
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Received on Sun Dec 19 2010 - 03:30:03 PST
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