作者: Andrew B. Stergachis , Shane Neph , Richard Sandstrom , Eric Haugen , Alex P. Reynolds
DOI: 10.1038/NATURE13972
关键词: Computational biology 、 Genome 、 Genetics 、 Body plan 、 Transcription factor 、 Human genome 、 DNase-I Footprinting 、 ENCODE 、 Trans-acting 、 Gene 、 Biology
摘要: The basic body plan and major physiological axes have been highly conserved during mammalian evolution, yet only a small fraction of the human genome sequence appears to be subject evolutionary constraint. To quantify cis- versus trans-acting contributions regulatory we performed genomic DNase I footprinting mouse across 25 cell tissue types, collectively defining ∼8.6 million transcription factor (TF) occupancy sites at nucleotide resolution. Here show that TF footprints conjointly encode lexicon is ∼95% similar with derived from footprints. However, ∼20% orthologues. Despite substantial turnover cis-regulatory landscape, nearly half all pairwise interactions connecting genes maintained in orthologous types through innovation recognition sequences. Furthermore, higher-level organization TF-to-TF connections into cellular network architectures identical human. Our results indicate selection on gene regulation targeted chiefly level trans-regulatory circuitry, enabling potentiating plasticity.