Micromanipulation experiments demonstrate that HP1α strengthens interphase and mitotic chromosome mechanics and maintains nuclear shape by chromatin crosslinking, separate from histone methylation.
Alexander R Leydon, Wei Wang ... Jennifer L Nemhauser
The TPL corepressor binds to the core mediator complex through MED21 to inhibit transcription while simultaneously priming repressed genes for rapid reactivation.
ARID1A deficiency in SWI/SNF complex promotes pancreatic tumor development by upregulating ALDH protein levels to effectively reduce cellular reactive oxygen species levels, leading to the significant attenuation of oncogenic KRAS-induced senescence.
Michael Chas Sumner, Steven B Torrisi ... Jason H Brickner
Measuring and simulating chromatin dynamics reveals that repositioning of genes to the nuclear pore is neither active nor vectorial, but reduces sub-diffusion and coordinates movement between loci on different chromosomes.
Christopher Duncan-Lewis, Ella Hartenian ... Britt A Glaunsinger
Human cells respond to cytoplasmic mRNA depletion during early apoptosis by inhibiting RNA polymerase II transcription, thereby magnifying the gene expression shutdown during stress.
Christine E Cucinotta, Rachel H Dell ... Toshio Tsukiyama
Multiple mechanisms, by which a highly conserved chromatin-remodeling factor RSC facilitates initiation and maintenance of large-scale, rapid gene expression upon exit from quiescent state, have been discovered.
Modulation of histone levels in gut enterocytes by rapamycin treatment alters chromatin organisation and induces intestinal autophagy through transcriptional regulation to prevent age-related decline in the intestine and extend lifespan.
PDB-associated differences in DNA methylation are reproducible and reflect key environmental modulators of bone homeostasis including viral processes, vitamin D metabolism, as well as mechanical sheer load.
