The DNA Data Bank of Japan (DDBJ) is a public database that collects and shares DNA sequences from various organisms. Established in 1986, it aims to support research in genetics, genomics, and related fields by providing easy access to genetic information. DDBJ collaborates with other major databases, such as GenBank and European Nucleotide Archive, to ensure comprehensive data coverage. Researchers can submit their findings and access a wealth of genetic data, facilitating advancements in areas like medicine, agriculture, and evolutionary biology.