Q-BioLiP

Q-BioLiP provides a comprehensive resource for quaternary structure-based protein-ligand interactions, addressing limitations in single chain-based representations by modeling proteins in their multimeric forms.

Key Features:

• Quaternary structure representation: Protein structures are represented as quaternary structures rather than single chain-based tertiary structures.
• Proper nucleic acid chain pairing: DNA/RNA chains are paired properly rather than separated.
• Binding affinity data: Both experimental and predicted binding affinities are provided.
• Comprehensive interaction retention: Both biologically relevant and irrelevant interactions are retained to alleviate wrong justification of ligands' biological relevance.
• Complex structure modeling algorithm: A new quaternary structure-based algorithm for modeling protein-ligand complex structures was developed.

Scientific Applications:

• Protein-small molecule interaction: Supports study of interactions between proteins and small molecule ligands.
• Protein-metal ion interaction: Supports study of interactions between proteins and metal ions.
• Protein-peptide interaction: Supports study of interactions between proteins and peptides.
• Protein-protein interaction: Supports study of interactions between multiple protein chains.
• Protein-DNA/RNA interaction: Supports study of interactions between proteins and nucleic acids.
• RNA-small molecule interaction: Supports study of interactions between RNA and small molecules.

Methodology:

A new quaternary structure-based algorithm for the modeling of protein-ligand complex structure was developed.