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everything up to minimization with implicit solvent
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rwxayheee committed Nov 14, 2023
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10 changes: 6 additions & 4 deletions _posts/2023-11-8-Peptide-Docking-with-ADCP-2.md
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+ [Docking Calculation](#docking-calculation)
* [Example 1-2 Basic Minimization: Using OpenMM for a Two-step Minimization](#example-1-2-basic-minimization-using-openmm-for-a-two-step-minimization)
+ [Gas Phase Minimization](#gas-phase-minimization)
+ [Minimization Preparation](#minimization-preparation)
+ [2nd Minimization Preparation](#2nd-minimization-preparation)
+ [Minimization with Implicit Solvent](#minimization-with-implicit-solvent)

* [Example 2-1 Interfacing RDKit: Exporting ADCP raw outputs into RDKit Molecules and Using Vina for Local Optimization]
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In the 100 processed modes, that seemed to be the only problematic structure that remained unphysical after the 100-step minimization in vacuo.

The above minimization calculation (-nmin 100 -nitr 100) will take **about 1 hour** on a 40-core Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GH. The completed minimization calculation will generate `dock1_omm_rescored_out.pdb` under the work folder `dock1`. With the `-k` option, subfolder `dock1_omm_amber_parm` will be kept under `dock1`.
The above minimization calculation (-nmin 100 -nitr 100 -env vaccum) will take **about 1 hour** on a 40-core Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GH. The completed minimization calculation will generate `dock1_omm_rescored_out.pdb` under the work folder `dock1`. With the `-k` option, subfolder `dock1_omm_amber_parm` will be kept under `dock1`.

### Minimization Preparation
### 2nd Minimization Preparation

To start another minimization, I will do the following 3 things:

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| 2000 | -4896.49 | -4669.85 | -193.37 | -33.27 | -226.64 |
| 5000 | -4883.27 | -4657.35 | -191.20 | -34.72 | -225.92 |

You will see that the energies, most importantly `dE_Interaction`, became generally invariant after `-nitr` reached 1000. But again we should keep in mind that the required number of minimization steps always depends on how good the initial structure is...
You will see that the energies, most importantly `dE_Interaction`, became generally invariant after `-nitr` reached 1000. But again we should keep in mind that the required number of minimization steps always depends on how good the initial structure is...

The above minimization calculation (-nmin 100 -nitr 1000 -env implicit) will take ??? on a 40-core Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GH.

## Example 3 Advanced Docking: Docking a Cyclice Peptide Containing a Disulfide Bond and Pose Selection

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