DDBJ introduced XML for the data dissemination and named it DDBJ-XML. XML format is firstly implemented into a DDBJ search program named "getentry".
You could choose XML format from a pull-down menu of "getentry".
You could also find a link to the DTD file when you get the result of "getentry".
Miyazaki, S and Sugawara, H, "Development of DDBJ-XML and Its Application to a Database of cDNA" , Genome Informatics 2000, Universal Academy Press, Inc (Tokyo),380-381,2000
Satoru Miyazaki and Hideaki Sugawara,"Visualization of Features in Flat file by use of DDBJ-XML", Currents in computational molecular biology 2001(Montreal), 249-250, 2001