SDA
Simulation of Diffusional Association
(version 5.01)



Output

fort.44 - calculated solvent accessibilities for each accessible atom of solutes 1 and 2
fort.55 - complexes satisfying 2-contact reaction conditions defined by iwrec and nwrec, or a complete trajectory whose number is given by nrec.  These complexes can be processed further to make a movie of a Brownian dynamics trajectory, to visualize encounter complexes or check interaction energies calculated by SDA, using auxiliary programs from SDA distribution.

fort.66 - a table giving the length (number of BD steps) of each trajectory. >
fort.77 - this file contains the values of the electrostatic and desolvation potentials of solute 1 and solute 2 along 5 selected lines in 3-dimensional space; a section through the exclusion grid in ascii format in the plane passing through the center of the solute 1; reaction atom information.  This file is designed to assist in checking if the input files are correct and/or read as expected.

fort.99 - this file gives the occurrence of reaction atom contacts.  The first half of this file gives the number of contacts observed at each specified contact distance for each pair of reaction atoms.  In the second half, the number of contacts is counted differently - only the first occurrence of the contact in a Brownian dynamics run/trajectory is counted.

The file with the name specified in BLOCK 13 of the input file has intermediate results written every nprint runs.  It can be used to check the status of a long SDA run, or to compute association rate constants from incomplete runs of SDA.  It has a table of fractions of reactive trajectories among the trajectories so far simulated.

fort.6 - standard output contains a description of the Brownian dynamics run course and results.

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