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- W1587991407 abstract "Chromatin assembly and remodelling is an important process during the repair of DNA damage in eukaryotic cells. Although newly synthesized histone H4 is acetylated prior to nuclear import and incorporation into chromatin during DNA damage repair, the precise role of acetylation in this process is poorly understood. Here, we identify the histone acetyltransferase 1 (Hat1) catalysing the conserved acetylation pattern of histone H4 preceding its chromatin deposition in the fungal pathogen Candida albicans. Surprisingly, Hat1 is required for efficient repair of not just exogenous but also endogenous DNA damage. Cells lacking Hat1 rapidly accumulate DNA damages and switch from yeast-like to pseudohyphal growth. In addition, reduction of histone H4 mimics lack of Hat1, suggesting that inefficient H4 supply for deposition into chromatin is the key functional consequence of Hat1 deficiency. Thus, remarkably, we demonstrate that C. albicans is the first organism known to require histone H4 processing for endogenous DNA damage repair and morphogenesis. Strikingly, we also discover that hat1Δ/Δ cells are hypersusceptible to caspofungin due to intracellular reactive oxygen species induced by this drug. Hence, we propose that targeting this class of histone acetyltransferases in fungal pathogens may have potential in antifungal therapy." @default.
- W1587991407 created "2016-06-24" @default.
- W1587991407 creator A5016873011 @default.
- W1587991407 creator A5035633092 @default.
- W1587991407 creator A5046539939 @default.
- W1587991407 creator A5083076589 @default.
- W1587991407 date "2012-10-17" @default.
- W1587991407 modified "2023-10-14" @default.
- W1587991407 title "The histone acetyltransferase Hat1 facilitates DNA damage repair and morphogenesis in<i>Candida albicans</i>" @default.
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