1. GenBank;Benson;Nucleic Acids Research,2000
2. The Gene Ontology consortium, http://www.geneontology.com.
3. MySQL open source database, http://www.mysql.com.
4. Incyte LifeSeq Foundation database. http://www.incite.com/sequence.foundation.shtml.
5. The EMBL Nucleotide Sequence Database;Stoesser;Nucleic Acids Research,2002