期刊
NATURE COMMUNICATIONS
卷 11, 期 1, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-020-16103-0
关键词
-
资金
- DFG [CRC992, CRC1140]
- German Research Foundation under Germany's Excellence Strategy [CIBSS-EXC-2189, 390939984]
Cells rely on a diverse repertoire of genes for maintaining homeostasis, but the transcriptional networks underlying their expression remain poorly understood. The MOF acetyltransferase-containing Non-Specific Lethal (NSL) complex is a broad transcription regulator. It is essential in Drosophila, and haploinsufficiency of the human KANSL1 subunit results in the Koolen-de Vries syndrome. Here, we perform a genome-wide RNAi screen and identify the BET protein BRD4 as an evolutionary conserved co-factor of the NSL complex. Using Drosophila and mouse embryonic stem cells, we characterise a recruitment hierarchy, where NSL-deposited histone acetylation enables BRD4 recruitment for transcription of constitutively active genes. Transcriptome analyses in Koolen-de Vries patient-derived fibroblasts reveals perturbations with a cellular homeostasis signature that are evoked by the NSL complex/BRD4 axis. We propose that BRD4 represents a conserved bridge between the NSL complex and transcription activation, and provide a new perspective in the understanding of their functions in healthy and diseased states. The MOF acetyltransferase-containing Non-Specific Lethal (NSL) complex is a broad transcription regulator and haploinsufficiency of its KANSL1 subunit results in the Koolen-de Vries syndrome in humans. Here, the authors identify the BET protein BRD4 as evolutionary conserved co-factor of the NSL complex and provide evidence that NSL-deposited histone acetylation induces BRD4 recruitment for transcription of constitutively active genes.
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