Molecular databases are organized collections of information that store data about biological molecules, such as proteins, nucleic acids, and small molecules. These databases facilitate the retrieval and analysis of molecular information, helping researchers understand the structure, function, and interactions of various biomolecules. Examples include Protein Data Bank and PubChem. Researchers use molecular databases to support drug discovery, genomics, and proteomics. By providing access to vast amounts of data, these databases enable scientists to identify potential drug targets, study genetic variations, and explore molecular pathways. This information is crucial for advancing biomedical research and developing new therapies.