The nucleotide sequence database collected and maintained by DDBJ is quarterly released online to the public and distributed in the magnetic media.We completed DDBJ Release 39 in November 2nd, 1999.
DDBJ Release 39 consists of 4,810,773 entries, and the number of bases reached 3,728,000,562.
We introduced VERSION number (Nucleotide ID and Protein ID) into operation from release 37. According to this, use of NID and PID were terminated from release 39.New prefix of accession number, AX and AY were added from this release.AX will be used by EMBL for patent data, and AY for direct submission by GenBank.