Unknown,Transcriptomics,Genomics,Proteomics

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Genome-wide binding of WDR5 and GRHL3


ABSTRACT: The antagonistic actions of Polycomb and Trithorax are responsible for proper cell fate determination in mammalian tissues. In the epidermis, a self-renewing epithelium, previous work has shown that release from Polycomb repression only partially explains differentiation gene activation. We now show that Trithorax is also a key regulator of epidermal differentiation, not only through activation of genes repressed by Polycomb in progenitor cells, but also through activation of genes independent of regulation by Polycomb. The differentiation associated transcription factor GRHL3/GET1 recruits the ubiquitously expressed Trithorax complex to a subset of differentiation genes. Examination of WDR5 and GRHL3 binding in human differentited primary keratinocytes (NHEK). High calcium medium was added to NHEK cells at 50% confluency to induce differentiation. Cells were collected for ChIP 24 hours after addition of high calcium medium. ChIP with Wdr5 and Grhl3 antibodies, and an input control were sequenced.

ORGANISM(S): Homo sapiens

SUBMITTER: Amelia Hopkin 

PROVIDER: E-GEOD-42180 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

GRHL3/GET1 and trithorax group members collaborate to activate the epidermal progenitor differentiation program.

Hopkin Amelia Soto AS   Gordon William W   Klein Rachel Herndon RH   Espitia Francisco F   Daily Kenneth K   Zeller Michael M   Baldi Pierre P   Andersen Bogi B  

PLoS genetics 20120719 7


The antagonistic actions of Polycomb and Trithorax are responsible for proper cell fate determination in mammalian tissues. In the epidermis, a self-renewing epithelium, previous work has shown that release from Polycomb repression only partially explains differentiation gene activation. We now show that Trithorax is also a key regulator of epidermal differentiation, not only through activation of genes repressed by Polycomb in progenitor cells, but also through activation of genes independent o  ...[more]

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