softwares

Alignment/Similarity Search Tools
EBI- Fasta executable: Provides sequence similarity searching against nucleotide and protein databases using the Fasta programs. Fasta can be very specific when identifying long regions of low similarity especially for highly diverged sequences.Download EBI-Fasta executable via FTP
EBI-Clustal W is a general purpose multiple sequence alignment program for DNA or proteins.It produces biologically meaningful multiple sequence alignments of divergent sequences. It calculates the best match for the selected sequences, and lines them up so that the identities, similarities and differences can be seen.Download EBI-Clustal W via FTP
Clustal X: Clustal X is a new windows interface for the ClustalW multiple sequence alignment program. It provides an integrated environment for performing multiple sequence and profile alignments and analysing the results. The sequence alignment is displayed in a window on the screen. A versatile coloring scheme has been incorporated allowing you to highlight conserved features in the alignment. The pull-down menus at the top of the window allow you to select all the options required for traditional multiple sequence and profile alignment. Download Clustax (Windows OS)
TIGR-MUMmer(fast alignment of large-scale DNA and protein sequences):A system for aligning whole genome sequences. Using an efficient data structure called a suffix tree, the system is able rapidly to align sequences containing millions of nucleotides. Download MUMer Via FTP
TIGR-AAT package(A tool for analyzing and annotating genomic sequences): The AAT package includes two sets of programs, one set (DPS/NAP) for comparing the query sequence with a protein database, and the other (DDS/GAP2) for comparing the query with a cDNA database (Huang et al., 1997).Download AAT package via FTP