Chromatin & Epigenetics
The chromatin landscape of primary synovial sarcoma organoids is linked to specific epigenetic mechanisms and dependenciesWe have addressed the mechanisms by which the fusion protein SS18-SSX modifies the epigenome toward the development of synovial sarcoma and the establishment of its potentially targetable vulnerabilities.
Polycomb mutant partially suppresses DNA hypomethylation–associated phenotypes in ArabidopsisA mutation in Arabidopsis polycomb repressive complex 2 partially suppresses the transposon activity observed in a DNA methylation mutant, challenging expectations.
Mps2 links Csm4 and Mps3 to form a telomere-associated LINC complex in budding yeastThe canonical LINC complex is composed of two different transmembrane proteins; this work reveals the heterotrimeric composition of the telomere-associated LINC complex in budding yeast.
Stoichiometry of Rtt109 complexes with Vps75 and histones H3-H4The work determines the relative and absolute stoichiometry of a 5-chain protein complex involved in histone chaperoning and acetylation. Using sedimentation velocity and light scattering, it uncovers a dynamic equilibrium of complex self-association.
Biochemical and functional characterization of a meiosis-specific Pch2/ORC AAA+ assemblyThe AAA+ protein Pch2 forms a biochemical complex with Orc1/ORC to suppress DNA break formation in the meiotic G2/prophase.
CSDE1 controls gene expression through the miRNA-mediated decay machineryCSDE1 is a new component of miRNA-induced silencing complex and interacts with DCP1–DCP2 decapping machinery with potential roles in miRNA-mediated target degradation.
Splicing of enhancer-associated lincRNAs contributes to enhancer activityAnalysis of enhancer-associated lincRNA transcripts shows their efficient and conserved splicing contributes to cognate enhancer activity and cis-regulation of target gene expression.
Meiotic sex chromosome cohesion and autosomal synapsis are supported by Esco2This study reveals a role for the cohesin modifier ESCO2 for maintenance of sister chromatid cohesion in mammalian meiosis and a specific weakness of cohesion within male sex chromosome chromatin
Nup93 regulates breast tumor growth by modulating cell proliferation and actin cytoskeleton remodelingThis study highlights the role of Nup93-chromatin interactions in driving triple-negative breast cancer propagation through modulation of the actin cytoskeleton, cell migration and proliferation.
Oscillatory cAMP signaling rapidly alters H3K4 methylationThis work explores how GPCR-cAMP signaling dynamically influences histone methylation by altering intracellular labile Fe(II) levels and subsequently modulating histone demethylase activity.