DrugBank is a richly annotated resource that combines detailed drug data with comprehensive drug target and drug action information

A free database of commercially-available compounds for virtual screening.

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical propertie

The Nucleic Acid Database (NDB) is a collection of three-dimensional nucleic acid structures and their complexes obtained and curated from the Protein Data Bank (PDB). The database acts as a centraliz

The Protein Data Bank (PDB) is a database that contains three-dimensional structural information about proteins, nucleic acids, and other biomolecules.

MODELLER is used for homology or comparative modeling of protein three dimensional structures