Algorithms|Computational Biology|Computer Simulation|Computers|DNA|Databases, Genetic|Databases, Protein|Escherichia coli|Genes, Bacterial|Genome|Humans|Lipoprotein Lipase|Models, Genetic|Models, Statistical|Oligonucleotide Array Sequence Analysis|Oligonucleotide Probes|Open Reading Frames|Pattern Recognition, Automated|Phylogeny|SARS Virus|Sequence Analysis, DNA|Shigella flexneri|Software|Species Specificity