Genome-wide Prediction of Mammalian Enhancers Based on Analysis of Transcription-Factor Binding Affinity

Understanding the regulation of human gene expression requires knowledge of the “second genetic code,” which consists of the binding specificities of transcription factors (TFs) and the combinatorial code by which TF binding sites are assembled to form tissue-specific enhancer elements. Using a nove...

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Veröffentlicht in:Cell 2006-01, Vol.124 (1), p.47-59
Hauptverfasser: Hallikas, Outi, Palin, Kimmo, Sinjushina, Natalia, Rautiainen, Reetta, Partanen, Juha, Ukkonen, Esko, Taipale, Jussi
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container_end_page 59
container_issue 1
container_start_page 47
container_title Cell
container_volume 124
creator Hallikas, Outi
Palin, Kimmo
Sinjushina, Natalia
Rautiainen, Reetta
Partanen, Juha
Ukkonen, Esko
Taipale, Jussi
description Understanding the regulation of human gene expression requires knowledge of the “second genetic code,” which consists of the binding specificities of transcription factors (TFs) and the combinatorial code by which TF binding sites are assembled to form tissue-specific enhancer elements. Using a novel high-throughput method, we determined the DNA binding specificities of GLIs 1–3, Tcf4, and c-Ets1, which mediate transcriptional responses to the Hedgehog (Hh), Wnt, and Ras/MAPK signaling pathways. To identify mammalian enhancer elements regulated by these pathways on a genomic scale, we developed a computational tool, enhancer element locator (EEL). We show that EEL can be used to identify Hh and Wnt target genes and to predict activated TFs based on changes in gene expression. Predictions validated in transgenic mouse embryos revealed the presence of multiple tissue-specific enhancers in mouse c- Myc and N- Myc genes, which has implications for organ-specific growth control and tumor-type specificity of oncogenes.
doi_str_mv 10.1016/j.cell.2005.10.042
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subjects Amino Acid Sequence
Animals
Carrier Proteins - genetics
Carrier Proteins - metabolism
Chickens
Computational Biology - methods
Drosophila
Drosophila Proteins - genetics
Drosophila Proteins - metabolism
Enhancer Elements, Genetic - genetics
Gene Expression Regulation - physiology
Genes, myc - physiology
Genome
Hedgehog Proteins
Humans
Membrane Glycoproteins - genetics
Membrane Glycoproteins - metabolism
Mice
Molecular Sequence Data
Oligonucleotide Array Sequence Analysis - methods
Protein Binding - physiology
Rats
Signal Transduction - genetics
Signal Transduction - physiology
Tetraodontiformes
Transcription Factors - metabolism
Tumor Suppressor Protein p53 - genetics
Wnt Proteins - genetics
Wnt Proteins - metabolism
title Genome-wide Prediction of Mammalian Enhancers Based on Analysis of Transcription-Factor Binding Affinity
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