Title
Filtering Degenerate Patterns With Application To Protein Sequence Analysis
Abstract
In biology, the notion of degenerate pattern plays a central role for describing various phenomena. For example, protein active site patterns, like those contained in the PROSITE database, e.g., [FY]DPC[LIM] [ASG]C[ASG], are, in general, represented by degenerate patterns with character classes. Researchers have developed several approaches over the years to discover degenerate patterns. Although these methods have been exhaustively and successfully tested on genomes and proteins, their outcomes often far exceed the size of the original input, making the output hard to be managed and to be interpreted by refined analysis requiring manual inspection. In this paper, we discuss a characterization of degenerate patterns with character classes, without gaps, and we introduce the concept of pattern priority for comparing and ranking different patterns. We define the class of underlying patterns for filtering any set of degenerate patterns into a new set that is linear in the size of the input sequence. We present some preliminary results on the detection of subtle signals in protein families. Results show that our approach drastically reduces the number of patterns in output for a tool for protein analysis, while retaining the representative patterns.
Year
DOI
Venue
2013
10.3390/a6020352
ALGORITHMS
Keywords
Field
DocType
pattern discovery and filtering, degenerate patterns, analysis of biological data
Degenerate energy levels,Protein family,Protein sequence analysis,Ranking,Algorithm,Filter (signal processing),PROSITE,Mathematics
Journal
Volume
Issue
ISSN
6
2
1999-4893
Citations 
PageRank 
References 
3
0.42
32
Authors
2
Name
Order
Citations
PageRank
Matteo Comin119120.94
Davide Verzotto2633.96