317 results found
    1. Chromosomes and Gene Expression

    The chromatin remodelers RSC and ISW1 display functional and chromatin-based promoter antagonism

    Timothy J Parnell, Alisha Schlichter ... Bradley R Cairns
    A combination of genetics, expression, genomic localization, and genomic nucleosome profiling demonstrates antagonism between two chromatin remodelers that reveal different mechanisms at different promoter architectures.
    1. Structural Biology and Molecular Biophysics

    Architecture of the chromatin remodeler RSC and insights into its nucleosome engagement

    Avinash B Patel, Camille M Moore ... Eva Nogales
    The structure of the yeast RSC complex, a member of the SWI/SNF chromatin remodeling family, determined by cryo-electron microscopy, reveals a conserved structural core and the mode of nucleosome engagement.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Specialization of the chromatin remodeler RSC to mobilize partially-unwrapped nucleosomes

    Alisha Schlichter, Margaret M Kasten ... Bradley R Cairns
    A SWI/SNF-family chromatin remodeling subcomplex from yeast is identified (RSC1) that is specialized to slide nucleosomes residing on DNA sequences that confer partial nucleosome unwrapping, with assistance from accessory factors.
    1. Cancer Biology

    Tsc2 disruption in mesenchymal progenitors results in tumors with vascular anomalies overexpressing Lgals3

    Peter J Klover, Rajesh L Thangapazham ... Thomas N Darling
    Tsc2 inactivation in mouse mesenchymal progenitors produced tumors with vascular anomalies reminiscent of human angiomyolipomas, and a gene expression signature in Tsc2-deficient tissues which included Lgals3, as a novel potential biomarker for TSC1/2 loss.
    1. Chromosomes and Gene Expression

    RSC primes the quiescent genome for hypertranscription upon cell-cycle re-entry

    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.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    The Rqc2/Tae2 subunit of the ribosome-associated quality control (RQC) complex marks ribosome-stalled nascent polypeptide chains for aggregation

    Ryo Yonashiro, Erich B Tahara ... Claudio AP Joazeiro
    Rqc2-mediated modification of ribosome-stalled nascent chains with "CAT tails" promotes formation of insoluble aggregates suggesting that proteins can become specifically marked for aggregation.
    1. Chromosomes and Gene Expression
    2. Structural Biology and Molecular Biophysics

    Dynamic 1D search and processive nucleosome translocations by RSC and ISW2 chromatin remodelers

    Jee Min Kim, Claudia C Carcamo ... Carl Wu
    Single-particle imaging of RSC and ISW2 chromatin remodelers on DNA stretched between dual optical tweezers reveals distinctive 1D diffusion and opposing push–pull nucleosome translocation on engagement with sparse nucleosome arrays.
    1. Biochemistry and Chemical Biology

    Stepwise nucleosome translocation by RSC remodeling complexes

    Bryan T Harada, William L Hwang ... Xiaowei Zhuang
    Single molecule FRET reveals that the SWI/SNF-family remodeling enzyme RSC translocates nucleosomes along the DNA in steps of ~1-2 base pairs in size.
    1. Chromosomes and Gene Expression

    Histone H2B ubiquitylation represses gametogenesis by opposing RSC-dependent chromatin remodeling at the ste11 master regulator locus

    Philippe Materne, Enrique Vázquez ... Damien Hermand
    Building on previous work (Materne et al., 2015), it is shown that the ubiquitylation of histone H2B represses cell differentiation by opposing chromatin remodeling at the promoter of the master regulator of gametogenesis, ste11
    1. Cell Biology

    Control of TSC2-Rheb signaling axis by arginine regulates mTORC1 activity

    Bernadette Carroll, Dorothea Maetzel ... Viktor I Korolchuk
    Signaling pathway mTOR can sense its principal activator amino acid arginine via a different mechanism than that previously described for other amino acids.

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