NPIDB, Nucleic acid Protein Interaction DataBase provides an access
to structured and organized information about all available structures of DNA protein and
RNA protein complexes. The work on the database started in 1998 in
Belozersky Institute of
Moscow State University. Since 2003, the database is available online. Besides the data,
NPIDB site provides an access to a number of home-made software tools for analyzing 3D structures of complexes.