Increasing the accuracy of global alignment of amino acid sequences by constructing a set of alignment candidates
2010
The accuracy of global Smith-Waterman alignments and Pareto-optimal alignments depending on the degree of sequence similarity (percent of coincidence, %id, and the number of removed fragments NGap) has been examined. An algorithm for constructing a set of three to six alignments has been developed of which the best alignment on the average exceeds in accuracy the best alignment that can be constructed using the Smith-Waterman algorithm. For weakly homologous sequences (%id 15, NGap 20), the increase in accuracy is on the average about 8%, with the average accuracy of the global Smith-Waterman alignments being about 38% (the accuracy was estimated on model test sets).
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