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wiederm authored Nov 2, 2020
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# Data

We provide data for the following preprint https://www.biorxiv.org/content/10.1101/2020.10.24.353318v1 .
We provide data for the following preprint https://www.biorxiv.org/content/10.1101/2020.10.24.353318v3 .

## Dataset

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## Running alchemical free energy calculations for tautomers

It is pretty easy --- but for now also limited to the tautomers we have been investigating.
If you want to run an alchemical free energy calulation use this script:
https://github.com/choderalab/neutromeratio/blob/master/scripts/generate_equilibrium_sampling_in_vacuum.sh
You only have to provide an index between 0 and 5000. This is further explained in the bash script.
It is pretty easy --- the relevant bash script is here:
https://github.com/choderalab/neutromeratio/blob/master/scripts/generate_samples_and_analyse_results.sh .
In the bash script, relevant parameters are defined at the very beginning:
```
SMILES1='OC1=CC=C2C=CC=CC2=N1'
SMILES2='O=C1NC2=C(C=CC=C2)C=C1'
name='test_mol' # defines where the output directory name
base_path="./" # where do you want to save the ouput files -> the ouput will have the form ${base_path}/${name}
potential_name='ANI1ccx' # which potential do you want to use? (ANI1ccx, ANI1x, ANI2x)
n_steps=10000 # nr of steps (dt = 0.5fs)
env='vacuum'
```

To simulate a new tautomer pair you have to update the SMILES strings. The results are saved in {base_path}/{name} and the simulations will be performed for {n_steps}. A reasonable value for n_steps should be above 100,000.
This script automatically uses ANI1ccx and returns the results with the native ANI1ccx parameters and the best performing parameter set from the parameter fitting described here: https://www.biorxiv.org/content/10.1101/2020.10.24.353318v3



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