Algorithms|Amino Acid Sequence|Base Sequence|Database Management Systems|Databases, Nucleic Acid|Databases, Protein|Evolution, Molecular|Gene Expression Profiling|Genetic Variation|Information Storage and Retrieval|Models, Genetic|Models, Statistical|Molecular Sequence Data|Nucleotides|Phylogeny|Protein Structure, Tertiary|Sequence Alignment|Sequence Analysis, DNA|Sequence Analysis, Protein