MPIPairwiseStatSig: parallel pairwise statistical significance estimation of local sequence alignment

Sequence comparison is considered as a cornerstone application in bioinformatics, which forms the basis of many other applications. In particular, pairwise sequence alignment is a fundamental step in numerous sequence comparison based applications, where the typical purpose of pairwise sequence alignment step is homology detection, i.e., identifying related sequences. Estimation of statistical significance of a pairwise sequence alignment is crucial in homology detection. A recent development in the field is the use of pairwise statistical significance as an alternative to database statistical significance. Although pairwise statistical significance has been shown to be potentially superior than database statistical significance for homology detection (evaluated in terms of retrieval accuracy), currently it is much time consuming since it involves generating an empirical score distribution by aligning one sequence of the sequence-pair with N random shuffles of the other sequence. In t...

• Type: Conference
• Year: 2010
• Where: HPDC
• Authors: Ankit Agrawal, Sanchit Misra, Daniel Honbo, Alok N. Choudhary
• Keywords: Distributed And Parallel Computing, HPDC 2010, Pairwise Sequence Alignment, Pairwise Statistical Significance, Statistical Significance