TL;DR
It is revealed that the C-terminal IDR of mammalian ALKBH5 anchors its main activity to mRNA, limiting chromatin engagement in mouse embryonic stem cells, and a conserved role for IDRs in restraining chromatin access by RNA and histone demethylases is uncovered.
These findings uncover a distinct mechanism by which the absence of H3K4me3 is sensed to initiate regional chromatin compaction, repress developmentally regulated genes, and facilitate key developmental transitions.
The six-residue loop 2 of H2A and H2A is used to map, at single-residue resolution, how nucleosome-core variation reshapes cellular function, and identifies histone variation as a source of phenotypic innovation.
SPIN1 uses a histone-state-based mechanism to identify and repress young TEs in pluripotent cells, mechanistically distinct from its germline mode in which SPIN1 cooperates with the PIWI–piRNA pathway to promote DNA methylation, illustrating how a single histone reader engages distinct silencing machineries across cell...
The findings uncover a non-canonical mechanism whereby a chromatin remodeler regulates transcription primarily through three-dimensional genome organization rather than local accessibility control, and establish histone modification-guided chromatin remodeling as a key principle in gene regulation.
It is found that transcriptional outcome of PKL binding depends not only on the changes in H3.3 occupancy but also on the pre-existing chromatin context at PKL-targeted sites, which outlines a new mechanism for CHD3 chromatin remodeler recruitment and function.
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