Designed by John Westbrook, and housed at Rutgers University, the goal of the NDB is to assemble and distribute structural information about nucleic acids. The database contains the coordinates of nucleic acid-containing crystal structures, including a searchable atlas of structures, Protein Finder, a search-engine for locating protein structures in the PDB database, a macromolecular crystallographic information file, and archived reports about the structures contained in the database. This site provides information of general interest to researchers in the field, and develops and distributes standard geometry information for use in refinement and molecular modeling programs. Users can also subscribe to the NDB electronic newsletter.