DockStream

DockStream provides a flexible molecular docking wrapper and structure-based scoring component to support de novo small-molecule design and integrate with REINVENT (version 2.0) for optimizing docking scores in small-molecule drug discovery.

Key Features:

• Structure-Based Scoring Component: Implements a structure-based scoring mechanism to incorporate protein–ligand structural information and complement QSAR models with limited applicability domains.
• Flexible Molecular Docking Wrapper: Interfaces with multiple ligand embedders and docking backends to enable diverse docking configurations.
• Automated Benchmarking and Analysis Workflow: Automates execution and analysis of docking configurations to benchmark and identify productive setups.
• Integration with REINVENT: Integrates with REINVENT (version 2.0) and leverages public data to inform the generative agent for optimization toward improved docking scores and binding-site interactions.
• Enhancement of Scaffold-Hopping: Facilitates exploration of unused (sub-)pockets and supports scaffold-hopping to generate novel molecular scaffolds.

Scientific Applications:

• Small-Molecule Drug Discovery: Supports de novo generation of candidate small molecules by prioritizing compounds with favorable docking scores and preserved binding-site interactions.
• QSAR Complementation: Extends QSAR-guided design by providing structure-based predictions to enrich for target activity beyond QSAR applicability domains.
• Generative Model Optimization: Enables optimization of molecules produced by REINVENT toward improved docking metrics and binding-site fit.
• Scaffold-Hopping and Chemotype Exploration: Assists in discovering novel scaffolds by exploiting alternate binding sub-pockets and diverse docking configurations.

Methodology:

Employs a combination of ligand embedders and docking backends, uses a structure-based scoring component, automates benchmarking and analysis of docking configurations, and leverages public data to inform the REINVENT agent.