Core transcriptional regulatory circuitry in human hepatocytes

DT Odom, RD Dowell, ES Jacobsen… - Molecular systems …, 2006 - embopress.org
DT Odom, RD Dowell, ES Jacobsen, L Nekludova, PA Rolfe, TW Danford, DK Gifford…
Molecular systems biology, 2006embopress.org
We mapped the transcriptional regulatory circuitry for six master regulators in human
hepatocytes using chromatin immunoprecipitation and high‐resolution promoter
microarrays. The results show that these regulators form a highly interconnected core
circuitry, and reveal the local regulatory network motifs created by regulator–gene
interactions. Autoregulation was a prominent theme among these regulators. We found that
hepatocyte master regulators tend to bind promoter regions combinatorially and that the …
We mapped the transcriptional regulatory circuitry for six master regulators in human hepatocytes using chromatin immunoprecipitation and high‐resolution promoter microarrays. The results show that these regulators form a highly interconnected core circuitry, and reveal the local regulatory network motifs created by regulator–gene interactions. Autoregulation was a prominent theme among these regulators. We found that hepatocyte master regulators tend to bind promoter regions combinatorially and that the number of transcription factors bound to a promoter corresponds with observed gene expression. Our studies reveal portions of the core circuitry of human hepatocytes.
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