Accurate prediction of gene expression by integration of DNA sequence statistics with detailed modeling of transcription regulation

Details Accurate prediction of gene expression by integration of DNA sequence statistics with detailed modeling of transcription regulation Accurate prediction of gene expression by integration of DNA sequence statistics with detailed modeling of transcription regulation

2010-12-16

arxiv.org/abs/1012.3607v1

Biophys. J. 99, 2408-2413 (2010)

Biology

Quantitative Biology

Molecular Networks

15 pages, 5 figures

Scientific paper

Gene regulation involves a hierarchy of events that extend from specific protein-DNA interactions to the combinatorial assembly of nucleoprotein complexes. The effects of DNA sequence on these processes have typically been studied based either on its quantitative connection with single-domain binding free energies or on empirical rules that combine different DNA motifs to predict gene expression trends on a genomic scale. The middle-point approach that quantitatively bridges these two extremes, however, remains largely unexplored. Here, we provide an integrated approach to accurately predict gene expression from statistical sequence information in combination with detailed biophysical modeling of transcription regulation by multidomain binding on multiple DNA sites. For the regulation of the prototypical lac operon, this approach predicts within 0.3-fold accuracy transcriptional activity over a 10,000-fold range from DNA sequence statistics for different intracellular conditions.

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