Title
An Efficient Algorithm to Identify DNA Motifs.
Abstract
Abstract We consider the problem of identifying motifs that abstracts the task of finding short conserved sites in genomic DNA. The planted (l, d)-motif problem, PMP, is the mathematical abstraction of this problem, which consists of finding a substring of length l that occurs in each s i in a set of input sequences S = {s 1, s 2, . . . ,s t } with at most d substitutions. Our propose algorithm combines the voting algorithm and pattern matching algorithm to find exact motifs. The combined algorithm is achieved by running the voting algorithm on t′ sequences, t′ < t. After that we use the pattern matching on the output of the voting algorithm and the reminder sequences, t − t′. Two values of t′ are calculated. The first value of t′ makes the running time of our proposed algorithm less than the running time of voting algorithm. The second value of t′ makes the running time of our proposed algorithm is minimal. We show that our proposed algorithm is faster than the voting algorithm by testing both algorithms on simulated data from (9, d ≤ 2) to (19, d ≤ 7). Finally, we test the performance of the combined algorithm on realistic biological data.
Year
DOI
Venue
2013
10.1007/s11786-013-0165-6
Mathematics in Computer Science
Keywords
Field
DocType
DNA motifs, Transcription factor binding sites, Exact algorithms, Pattern matching, Planted (l,d)-motif
String searching algorithm,Biological data,Combinatorics,Voting algorithm,Substring,Abstraction,Algorithm,Pattern matching,Planted motif search,Mathematics
Journal
Volume
Issue
ISSN
7
4
1661-8289
Citations 
PageRank 
References 
1
0.35
16
Authors
2
Name
Order
Citations
PageRank
Mostafa M. Abbas121.37
Hazem M. Bahig2247.61