Title
A motif-independent metric for DNA sequence specificity.
Abstract
Genome-wide mapping of protein-DNA interactions has been widely used to investigate biological functions of the genome. An important question is to what extent such interactions are regulated at the DNA sequence level. However, current investigation is hampered by the lack of computational methods for systematic evaluating sequence specificity.We present a simple, unbiased quantitative measure for DNA sequence specificity called the Motif Independent Measure (MIM). By analyzing both simulated and real experimental data, we found that the MIM measure can be used to detect sequence specificity independent of presence of transcription factor (TF) binding motifs. We also found that the level of specificity associated with H3K4me1 target sequences is highly cell-type specific and highest in embryonic stem (ES) cells. We predicted H3K4me1 target sequences by using the N- score model and found that the prediction accuracy is indeed high in ES cells.The software to compute the MIM is freely available at: https://github.com/lucapinello/mim.Our method provides a unified framework for quantifying DNA sequence specificity and serves as a guide for development of sequence-based prediction models.
Year
DOI
Venue
2011
10.1186/1471-2105-12-408
BMC Bioinformatics
Keywords
DocType
Volume
Embryonic Stem Cell, Nucleosome Position, JASPAR Database, Transcription Factor Motif, Motif Presence
Journal
12
Issue
ISSN
Citations 
1
1471-2105
3
PageRank 
References 
Authors
0.41
4
4
Name
Order
Citations
PageRank
Luca Pinello1497.71
Giosuè Lo Bosco215318.36
Bret M Hanlon341.11
Guo-Cheng Yuan48811.73