[AMBER] MMPBSA calculations

From: Chinthaka Ratnaweera <cnr88.msstate.edu>
Date: Wed, 27 Mar 2013 11:08:20 -0500

Hi
I am getting following error when calculating the MMPBSA energies with
MMPBSA.py. But GBSA works fine. Error msg and input files are paste below.
Thank you in advanced.

Reading command-line arguments and input files...
Loading and checking parameter files for compatibility...
mmpbsa_py_energy found! Using /usr/local/amber12/bin/mmpbsa_py_energy
cpptraj found! Using /usr/local/amber12/bin/cpptraj
Preparing trajectories for simulation...
50 frames were processed by cpptraj for use in calculation.

Beginning PB calculations with /usr/local/amber12/bin/mmpbsa_py_energy
  calculating complex contribution...
CalcError: /usr/local/amber12/bin/mmpbsa_py_energy failed with prmtop
../complex.prmtop!


Exiting. All files have been retained.

...................

input file

input file for running PB and GB in serial
&general
   endframe=50, keep_files=2,
/
&gb
  igb=2, saltcon=0.100,
/
&pb
  istrng=0.100,
/


-- 
Chinthaka Nadun Ratnaweera
Mississippi State University
310 Presidents Circle
Starkville, MS 39762
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Received on Wed Mar 27 2013 - 09:30:02 PDT
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