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Mysterious Role of H3K56ac in Embryonic Stem Cells

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Název česky Záhadná role H3K56ac v Embryonálních kmenových buňkách
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STEJSKAL Stanislav TESAŘOVÁ Lenka KRONTORÁD KOUTNÁ Irena

Rok publikování 2014
Druh Článek v odborném periodiku
Časopis / Zdroj Folia biologica
Fakulta / Pracoviště MU

Fakulta informatiky

Citace
Obor Genetika a molekulární biologie
Klíčová slova H3K56ac;p300;CBP; pluripotency; chromatin
Popis Posttranslational modifications of histones belong to epigenetic mechanisms that regulate gene expression by chromatin structure changes. Generally, histone acetylation reduces its positive charge and consequently weakens the stability of the nucleosome. Acetylation of lysine 56 on histone H3 is implicated in the processes associated with loosened chromatin structure. H3K56ac is a mark for histones with high nucleosome turnover in the nuclear processes such as gene transcription, DNA replication and reparation in yeasts. During evolution, the main H3K56ac regulatory pathway was lost and the level of H3K56ac remained very low in mammalian cells. Moreover, the function of this modification still re- mains unclear. In this minireview, we summarize the recent knowledge of the ambiguous role of H3K56ac in mammalian embryonic stem cells.
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