Registry indexed
Dock small-molecule guests into a porous host material using the VOID library (Voronoi Clustering), generating multiple 3D conformers with RDKit and ranking generated complexes.
Dock small-molecule guests into a porous host material using the VOID library (Voronoi Clustering), generating multiple 3D conformers with RDKit and ranking generated complexes.
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To perform molecular docking of a small-molecule ligand into a porous material structure (CIF format) using the VOID library. This skill aims to automatically generate a robust sampling of guest conformers using RDKit, optimize them, and then distribute them throughout the host framework using Voronoi-based cluster sampling and physics-informed collision filtering.
This will output:
docking_results.json) capturing the generation parameters, associated RDKit conformer energies, and matched pose IDs.You will need:
A standard run accepts the chemical inputs and saves outputs to a designated folder.
# Env: atomistic-agent
python .agents/skills/chem-docking-void/scripts/run_docking.py \
--smiles "CC12C3C4C5C6C1C7C2C3C4C5C67" \
--host_cif /path/to/host/material.cif \
--output_dir output/docked_poses \
--num_conformers 5
(The SMILES here represents Adamantane or similar structures for testing.)
The clustering map and acceptance rates are highly sensitive to VOID's search parameters. Use the advanced arguments for dense loading or strict spatial tolerances:
python .agents/skills/chem-docking-void/scripts/run_docking.py \
--smiles "CC(=O)Oc1ccccc1C(=O)O" \
--host_cif /path/to/host/MOF.cif \
--output_dir output/docked_poses \
--num_conformers 10 \
--threshold 1.8 \
--attempts 2000 \
--structs_per_loading 5 \
--num_clusters 150 \
--max_loading 1 \
--max_subdock 200 \
--remove_species "H2O" "Na"
--num_conformers: (RDKit) How many of the lowest-energy 3D geometries to test.--threshold: The acceptable minimum distance (Å) between the host atoms and guest atoms. A lower value allows tighter squeezes but risks atomic clashes.--attempts: How many random translation/rotation insertion guesses the Subdocker makes per BatchDocker queue limit.--structs_per_loading: Maximum number of successful geometries to export out of all validated matches, per conformer tested.--num_clusters & --min_radius: Settings for the VoronoiClustering sampler that determine the density and minimum pore volume of chosen docking nodes within the material.--remove_species: Pre-cleans the CIF file of specified elements (like free solvent) before docking.atomistic-agent conda environment where VOID, rdkit, and pymatgen are accessible.--max_loading > 1) may scale exponentially in computational time depending on pore size.pymatgen.core.Structure and pymatgen.core.MoleculeAuthor: Mingrou Xie Contact: GitHub @mingrouxie
name: chem-docking-void description: Dock small-molecule guests into a porous host material using the VOID library (Voronoi Clustering), generating multiple 3D conformers with RDKit and ranking generated complexes. category: [materials, chemistry]
--- name: chem-docking-void description: Dock small-molecule guests into a porous host material using the VOID library (Voronoi Clustering), generating multiple 3D conformers with RDKit and ranking generated complexes. category: [materials, chemistry] --- # chem-docking-void ## Goal To perform molecular docking of a small-molecule ligand into a porous material structure (CIF format) using the **VOID** library. This skill aims to automatically generate a robust sampling of guest conformers using RDKit, optimize them, and then distribute them throughout the host framework using Voronoi-based cluster sampling and physics-informed collision filtering. This will output: - Ranked docked complexes saved individually as standard CIF files. - A metadata summary (`docking_results.json`) capturing the generation parameters, associated RDKit conformer energies, and matched pose IDs. ## Instructions ### 1. Identify Inputs You will need: - The **SMILES** string of your guest molecule. - The **CIF** file path to your porous material (e.g. Zeolites, MOFs). ### 2. Basic Docking Run A standard run accepts the chemical inputs and saves outputs to a designated folder. ```bash # Env: atomistic-agent python .agents/skills/chem-docking-void/scripts/run_docking.py \ --smiles "CC12C3C4C5C6C1C7C2C3C4C5C67" \ --host_cif /path/to/host/material.cif \ --output_dir output/docked_poses \ --num_conformers 5 ``` *(The SMILES here represents Adamantane or similar structures for testing.)* ### 3. Tuning Hyperparameters The clustering map and acceptance rates are highly sensitive to VOID's search parameters. Use the advanced arguments for dense loading or strict spatial tolerances: ```bash python .agents/skills/chem-docking-void/scripts/run_docking.py \ --smiles "CC(=O)Oc1ccccc1C(=O)O" \ --host_cif /path/to/host/MOF.cif \ --output_dir output/docked_poses \ --num_conformers 10 \ --threshold 1.8 \ --attempts 2000 \ --structs_per_loading 5 \ --num_clusters 150 \ --max_loading 1 \ --max_subdock 200 \ --remove_species "H2O" "Na" ``` #### Meaning of Key Hyperparameters: - `--num_conformers`: (RDKit) How many of the lowest-energy 3D geometries to test. - `--threshold`: The acceptable minimum distance (Å) between the host atoms and guest atoms. A lower value allows tighter squeezes but risks atomic clashes. - `--attempts`: How many random translation/rotation insertion guesses the `Subdocker` makes per `BatchDocker` queue limit. - `--structs_per_loading`: Maximum number of successful geometries to export out of all validated matches, per conformer tested. - `--num_clusters` & `--min_radius`: Settings for the `VoronoiClustering` sampler that determine the density and minimum pore volume of chosen docking nodes within the material. - `--remove_species`: Pre-cleans the CIF file of specified elements (like free solvent) before docking. ## Constraints * **Environment**: Requires `atomistic-agent` conda environment where `VOID`, `rdkit`, and `pymatgen` are accessible. * **Loading Size**: By default, this script handles single-guest loadings per unit cell. Heavy multiple guest loading (`--max_loading > 1`) may scale exponentially in computational time depending on pore size. * **Outputs**: Everything is standardized to CIF files for compatibility with subsequent DFT or MLIP workflows. ## References 1. VOID Library 2. Pymatgen `pymatgen.core.Structure` and `pymatgen.core.Molecule` 3. RDKit cheminformatics (MMFF94 structural optimization) --- **Author:** Mingrou Xie **Contact:** [GitHub @mingrouxie](https://github.com/mingrouxie)
Skill source recorded
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Quality
69/100
Promising
Trust
58/100
Do not auto-install
Audit
76/100
Needs review
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