Characterization of binding sites of eukaryotic transcription factors.

@article{citeulike:1113883, abstract = {To explore the nature of eukaryotic transcription factor (TF) binding sites and determine how they differ from surrounding DNA sequences, we examined four features associated with DNA-binding sites: G+C content, pattern complexity, palindromic structure, and Markov sequence ordering. Our analysis of the regulatory motifs obtained from the TRANSFAC database, using yeast intergenic sequences as background, revealed that these four features show variable enrichment in motif sequences. For example, motif sequences were more likely to have palindromic structure than were background sequences. In addition, these features were tightly localized to the regulatory motifs, indicating that they are a property of the motif sequences themselves and are not shared by the general promoter "environment" in which the regulatory motifs reside. By breaking down the motif sequences according to the TF classes to which they bind, more specific associations were identified. Finally, we found that some correlations, such as G+C content enrichment, were species-specific, while others, such as complexity enrichment, were universal across the species examined. The quantitative analysis provided here should increase our understanding of protein-DNA interactions and also help facilitate the discovery of regulatory motifs through bioinformatics.}, address = {The Wilmer Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA. jiang.qian@jhmi.edu}, author = {Qian, J. and Lin, J. and Zack, D. J. }, citeulike-article-id = {1113883}, doi = {10.1016/S1672-0229(06)60019-3}, issn = {1672-0229}, journal = {Genomics Proteomics Bioinformatics}, keywords = {cis-regulatory, elements}, month = {May}, number = {2}, pages = {67--79}, posted-at = {2007-02-20 06:42:35}, priority = {2}, title = {Characterization of binding sites of eukaryotic transcription factors.}, url = {http://dx.doi.org/10.1016/S1672-0229(06)60019-3}, volume = {4}, year = {2006} }

TY - JOUR ID - citeulike:1113883 L3 - citeulike-article-id:1113883 TI - Characterization of binding sites of eukaryotic transcription factors. JF - Genomics Proteomics Bioinformatics VL - 4 IS - 2 SP - 67 EP - 79 AD - The Wilmer Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA. jiang.qian@jhmi.edu SN - 1672-0229 N2 - To explore the nature of eukaryotic transcription factor (TF) binding sites and determine how they differ from surrounding DNA sequences, we examined four features associated with DNA-binding sites: G+C content, pattern complexity, palindromic structure, and Markov sequence ordering. Our analysis of the regulatory motifs obtained from the TRANSFAC database, using yeast intergenic sequences as background, revealed that these four features show variable enrichment in motif sequences. For example, motif sequences were more likely to have palindromic structure than were background sequences. In addition, these features were tightly localized to the regulatory motifs, indicating that they are a property of the motif sequences themselves and are not shared by the general promoter "environment" in which the regulatory motifs reside. By breaking down the motif sequences according to the TF classes to which they bind, more specific associations were identified. Finally, we found that some correlations, such as G+C content enrichment, were species-specific, while others, such as complexity enrichment, were universal across the species examined. The quantitative analysis provided here should increase our understanding of protein-DNA interactions and also help facilitate the discovery of regulatory motifs through bioinformatics. KW - cis-regulatory KW - elements AU - Qian, J AU - Lin, J AU - Zack, DJ PY - 2006/05// UR - http://dx.doi.org/10.1016/S1672-0229(06)60019-3 ER -