Nucleic acid database NCBI - National Center for Biotechnology Information EMBL - European Molecular Biology Laboratory (EMBL) DDBJ - (DNA Data Bank of Japan), established in 1984, is one of the world's three major DNA databases. It forms an international DNA database together with NCBI's GenBank and EMBL's EBI database. CNGBdb - National GeneBank is located in Shenzhen Dapeng New District and is the fourth largest national database in the world after the world's three major databases. It is the first and only national gene bank in China. Compared with the other three gene banks in the world, the CNGB sample is the largest in terms of scale, storage and accessible data.