SnS-Align (Structure and Sequence Alignment) is a tool developed in perl, used to align the protein sequences by combining sequence and structure information at an instance. Given a protein sequence of an organism, the tool is used to identify its homologue(s) in the evolutionarily distant organisms, which might not be found from either sequence alone or structure alone comparisons.
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Ganiraju Manyam, Ancha Baranova, Mikhail Skoblov and Rakesh K. Mishra.
SnS-Align: A graphic tool for alignment of distantly related proteins.
International Journal of Bioinformatics Research & Applications (IJBRA) 5, 663-673, 2009.