MARZ: an algorithm to combinatorially analyze gapped n-mer models of transcription factor binding.
MARZ: an algorithm to combinatorially analyze gapped n-mer models of transcription factor binding.
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DOI:
10.1186/s12859-014-0446-3
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发表时间:
2015-01-31
影响因子:
3
通讯作者:
Dresch JM
中科院分区:
文献类型:
--
作者:
Zellers RG;Drewell RA;Dresch JM
A key challenge in understanding the molecular mechanisms that control gene regulation is the characterization of the specificity with which transcription factor proteins bind to specific DNA sequences. A number of computational approaches have been developed to examine these interactions, including simple mononucleotide and dinucleotide position weight matrix models. Here we develop a novel, unbiased computational algorithm, MARZ, that systematically analyzes all possible gapped matrices across a fixed number of nucleotides. In addition, to evaluate the ability of these matrix models to predict in vivo binding sites, we utilize a new scoring system and, in combination with established scoring methods and statistical analysis, test the performance of 32 different gapped matrices on the well characterized HUNCHBACK transcription factor in Drosophila. Our results indicate that in many cases gapped matrix models can outperform traditional models, but that the relative strength of the binding sites considered in the analysis can profoundly influence the predictive ability of specific models. The online version of this article (doi:10.1186/s12859-014-0446-3) contains supplementary material, which is available to authorized users.
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影响因子:
3.7
作者:
Siddharthan R
通讯作者:
Siddharthan R
DOI:
10.1126/science.1162327
发表时间:
2009-06-26
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Badis G;Berger MF;Philippakis AA;Talukder S;Gehrke AR;Jaeger SA;Chan ET;Metzler G;Vedenko A;Chen X;Kuznetsov H;Wang CF;Coburn D;Newburger DE;Morris Q;Hughes TR;Bulyk ML
通讯作者:
Bulyk ML
影响因子:
3.7
作者:
Annala M;Laurila K;Lähdesmäki H;Nykter M
通讯作者:
Nykter M
影响因子:
64.8
作者:
HULSKAMP, M;PFEIFLE, C;TAUTZ, D
通讯作者:
TAUTZ, D
影响因子:
14.9
作者:
Bulyk, ML;Johnson, PLF;Church, GM
通讯作者:
Church, GM