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Polycomb Repressive Complexes in Hox Gene Regulation: Silencing and Beyond: The Functional Dynamics of Polycomb Repressive Complexes in Hox Gene Regulation.
BioEssays ( IF 4 ) Pub Date : 2020-08-02 , DOI: 10.1002/bies.201900249 Claudia Gentile 1, 2, 3 , Marie Kmita 1, 2, 4
BioEssays ( IF 4 ) Pub Date : 2020-08-02 , DOI: 10.1002/bies.201900249 Claudia Gentile 1, 2, 3 , Marie Kmita 1, 2, 4
Affiliation
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The coordinated expression of the Hox gene family encoding transcription factors is critical for proper embryonic development and patterning. Major efforts have thus been dedicated to understanding mechanisms controlling Hox expression. In addition to the temporal and spatial sequential activation of Hox genes, proper embryonic development requires that Hox genes get differentially silenced in a cell‐type specific manner as development proceeds. Factors contributing to Hox silencing include the polycomb repressive complexes (PRCs), which control gene expression through epigenetic modifications. This review focuses on PRC‐dependent regulation of the Hox genes and is aimed at integrating the growing complexity of PRC functional properties in the context of Hox regulation. In particular, mechanisms underlying PRC binding dynamics as well as a series of studies that have revealed the impact of PRC on the 3D organization of the genome is discussed, which has a significant role on Hox regulation during development.
更新日期：2020-09-24
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