LightDock

LightDock performs multi-scale protein-protein docking to predict complex structures while accommodating conformational flexibility across resolution scales.

Key Features:

• Multi-scale docking: Implements a multi-scale docking methodology to accommodate conformational flexibility across different resolution scales.
• Implicit normal modes: Integrates implicit use of normal modes during the search to explore conformational variability.
• Scoring functions: Supports combined atomic and coarse-grained scoring functions for multi-resolution evaluation of poses.
• Local refinement: Includes local gradient-free minimization for refinement of docking poses.
• Interface-focused simulations: Allows focusing simulations on user-assigned interacting regions from the outset.
• Ensemble support: Accepts pre-calculated conformers for both receptors and ligands to incorporate ensemble variability.
• Improved performance on flexible cases: Delivers improved predictive accuracy for flexible protein interactions compared with rigid-body docking approaches.

Scientific Applications:

• Structure prediction: Prediction of protein-protein complex structures accounting for conformational flexibility.
• Interaction mechanism analysis: Providing structural and mechanistic insights into protein interactions.
• Challenging docking scenarios: Applicable to flexible proteins, low-affinity complexes, and transient interactions.
• Interface-guided docking: Enabling docking biased to user-specified interacting regions for targeted studies.

Methodology:

Uses a multi-scale docking approach with implicit normal modes during the search, combined atomic and coarse-grained scoring, optional local gradient-free minimization, support for pre-calculated receptor and ligand conformers, and user-defined interacting regions.