NPBS database: a chemical data resource with relational data between natural products and biological sources

NPBS (Natural Products & Biological Sources) database is a chemical data resource with relational data between natural products and biological sources, manually curated from literatures of natural product research. The relational data links a specific species and all the natural products derived from it, contrarily, links a specific natural product and all the biological sources. The biological sources cover diverse species of plant, bacterial, fungal and marine organism, the natural molecules have proper chemical structure data and computable molecular properties, and all the relational data have corresponding references. NPBS database provides a wider choice of biological sources, and can be used for dereplication to prevent re-isolation and re-characterization of already known natural products.