The DNA Data Bank of Japan collects DNA sequence data and assigns internationally recognized accession numbers mainly from Japanese researchers. It is one of the International DNA Databases that shares data on a daily basis with the European Bioinformatics Institute (EMBL) and the National Center for Biotechnology Information (NCBI); as a result, all three sources should provide the same information. Users can search for data in several different ways or use one of the various analysis tools. The site also provides information for researchers looking to submit data. Most information is presented in both English and Japanese.