Protozoa are single-celled eukaryotesthat commonly show characteristics usually associated with animals, most notably mobility and heterotrophy.Protozoal database contain data about all species of Protozoa(Rosen, LeChevallier et al. 1996). Such as (Crypto DB(Heiges, Wang et al. 2006), GiardiaDB(Aurrecoechea, Brestelli et al. 2009)). The Comparasite, an integrated database of our original full-length cDNA sequence data, consists of seven sub-databases of apicomplexa protozoa, Plasmodium falciparum(12,484 cDNA sequences), Plasmodium yoelii (11,262 sequences), Plasmodium vivax (9,633 sequences), Plasmodium berghei (1,518 sequences), Toxoplasma gondii (7,400 sequences), Cryptosporidium parvum (5,921 sequences)and a tapeworm, Echinococcus multilocularis (10,966 sequences)(Watanabe, Wakaguri et al. 2007).