421 results found
    1. Genetics and Genomics

    Establishment of H3K9me3-dependent heterochromatin during embryogenesis in Drosophila miranda

    Kevin H-C Wei et al.
    Heterochromatin is established at nucleation sites associated with open chromatin and RNA transcripts and matures into stable domains if they are found near transposable elements targeted by maternally deposited piRNAs.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    HP1α is a chromatin crosslinker that controls nuclear and mitotic chromosome mechanics

    Amy R Strom et al.
    Micromanipulation experiments demonstrate that HP1α strengthens interphase and mitotic chromosome mechanics and maintains nuclear shape by chromatin crosslinking, separate from histone methylation.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    SIRT1 regulates sphingolipid metabolism and neural differentiation of mouse embryonic stem cells through c-Myc-SMPDL3B

    Wei Fan et al.
    SIRT1, a cellular metabolic sensor, transcriptionally promotes sphingomyelin degradation in embryonic stem cells, which in turn modulates their membrane fluidity and neural differentiation.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    Single-PanIN-seq unveils that ARID1A deficiency promotes pancreatic tumorigenesis by attenuating KRAS-induced senescence

    Shou Liu et al.
    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.
    1. Cell Biology
    2. Chromosomes and Gene Expression

    A TORC1-histone axis regulates chromatin organisation and non-canonical induction of autophagy to ameliorate ageing

    Yu-Xuan Lu et al.
    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.
    1. Developmental Biology

    HDAC1 SUMOylation promotes Argonaute-directed transcriptional silencing in C. elegans

    Heesun Kim et al.
    HDAC SUMOylation promotes the association of other chromatin remodeling factors with the nuclear Argonaute WAGO-9, which is required for de novo heterochromatin silencing.
    1. Chromosomes and Gene Expression
    2. Plant Biology

    Widespread premature transcription termination of Arabidopsis thaliana NLR genes by the spen protein FPA

    Matthew T Parker et al.
    The expression of Arabidopsis NLR immune response genes is modulated by premature transcription termination, and this has implications for understanding NLR regulation and evolutionary dynamics.
    1. Chromosomes and Gene Expression

    Chromatin structure-dependent histone incorporation revealed by a genome-wide deposition assay

    Hiroaki Tachiwana et al.
    A new method using permeabilized cells and recombinant histones enables to analyze histone incorporations at the DNA sequence level.

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