49 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Pervasive transcription fine-tunes replication origin activity

    Tito Candelli et al.
    The pervasive transcription environment alters the efficiency of firing of replication origins, which are 'protected' by roadblock termination due to origin recognition complex (ORC) and pre-RC complexes.
    1. Chromosomes and Gene Expression

    CRISPRi is not strand-specific at all loci and redefines the transcriptional landscape

    Françoise S Howe et al.
    CRISPR interference (CRISPRi), which uses small guide RNAs to target catalytically dead Cas9 protein to chromatin, disrupts existing transcription units and generates new sites for initiation and termination of transcription on both strands of DNA.
    1. Neuroscience
    2. Stem Cells and Regenerative Medicine

    Activation of a neural stem cell transcriptional program in parenchymal astrocytes

    Jens P Magnusson et al.
    Parenchymal astrocytes are quiescent neural stem cells whose neurogenic potential can be unleashed by targeted manipulations guided by single-cell RNA sequencing data.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    ParB spreading on DNA requires cytidine triphosphate in vitro

    Adam SB Jalal et al.
    A biochemical reconstitution shows that the accumulation of Caulobacter crescentus ParB on DNA requires cytidine triphosphate and a closed DNA substrate in vitro.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Dual expression of Atoh1 and Ikzf2 promotes transformation of adult cochlear supporting cells into outer hair cells

    Suhong Sun et al.
    Adult cochlear supporting cells (SCs) are plastic and respond to ectopic Ikzf2 and Atoh1, and hair cell damage by up-regulating HC and down-regulating their endogenous SC genes.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Transcription mediated insulation and interference direct gene cluster expression switches

    Tania Nguyen et al.
    The formation of mutually exclusive coding and non-coding transcription units contributes to transcriptional interference and insulation at gene clusters and manages state-switching in response to environmental change.
    1. Biochemistry and Chemical Biology

    Genome-wide effects of the antimicrobial peptide apidaecin on translation termination in bacteria

    Kyle Mangano et al.
    Inhibition of bacterial protein synthesis by an antimicrobial peptide apidaecin triggers translation arrest at the stop codons, ribosome queuing and pervasive stop codon readthrough.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Synergy between RecBCD subunits is essential for efficient DNA unwinding

    Rani Zananiri et al.
    A new optical tweezers assay sheds light on the mechanism of cooperation and force generation by the subunits of RecBCD, critical for the repair of double strand breaks in bacteria.
    1. Chromosomes and Gene Expression

    Transcription factor clusters regulate genes in eukaryotic cells

    Adam JM Wollman et al.
    Transcription factors form clusters independently of the presence of DNA, which regulate target genes as opposed to individual monomers, addressing a longstanding question of how transcription factors can find gene targets so quickly.
    1. Cell Biology

    Reactivation of RNA metabolism underlies somatic restoration after adult reproductive diapause in C. elegans

    Nikolay Burnaevskiy et al.
    Morphological and functional rejuvenation upon exit from adult reproductive diapause in C. elegans is independent of germline signaling, but instead involves somatic nucleolar activation and expansion of the RNA pool.

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