The database schema in UML. Each box depicts one table within the SeqHound system. The grey areas contain the table names. PK stands for "primary key". For the majority of the tables, the primary key is the GenInfo (GI) identifier. Each subsequent entry in each of the boxes indicates a field of information stored in the tables. Required fields are in bold. ASN.1 schema in these tables can be found at http://ncbi.nlm.nih.gov/IEB webcite (for the Bioseq, Seq-Entry, Cdd and Biostruc) and at http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/slritools/slri/seqhound/asn webcite for the rest of the objects.
Michalickova et al. BMC Bioinformatics 2002 3:32 doi:10.1186/1471-2105-3-32