256 results found
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Evidence for a DNA-relay mechanism in ParABS-mediated chromosome segregation

    Hoong Chuin Lim et al.
    In vitro, in vivo and in silico evidence suggests that bacteria exploit intrinsic chromosomal fluctuations to achieve intracellular transport.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Stochastic modelling, Bayesian inference, and new in vivo measurements elucidate the debated mtDNA bottleneck mechanism

    Iain G Johnston et al.
    New modelling, statistics, and experiments show that cellular populations of mitochondrial DNA (mtDNA) evolve during development according to solvable stochastic dynamics involving binomial partitioning and random turnover, facilitating a predictive and quantitative theory of the mtDNA bottleneck.
    1. Chromosomes and Gene Expression

    Condensin controls cellular RNA levels through the accurate segregation of chromosomes instead of directly regulating transcription

    Clémence Hocquet et al.
    Contrary to the generally accepted model, condensin maintains proper gene expression by promoting the accurate segregation of chromosomes and the partitioning of the RNA-exosome throughout mitosis, instead of directly regulating transcription.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Chromosomes: Bacteria spring a surprise

    Ramanujam Srinivasan, Mohan K Balasubramanian
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    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Single-molecule FRET unveils induced-fit mechanism for substrate selectivity in flap endonuclease 1

    Fahad Rashid et al.
    Structure specific nucleases that act in DNA replication, repair and recombination actively mold their DNA while transforming their own structure to achieve precise cleavage of their cognate DNA and avoid the deleterious cleavage of noncognate DNA.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Live-cell mapping of organelle-associated RNAs via proximity biotinylation combined with protein-RNA crosslinking

    Pornchai Kaewsapsak et al.
    Live-cell nanometer-resolution RNA labeling method enables transcriptome-wide mapping of endogenous RNAs in nuclear, cytosol, ER, and mitochondrial subcompartments.
    1. Computational and Systems Biology
    2. Developmental Biology

    Stochasticity in the miR-9/Hes1 oscillatory network can account for clonal heterogeneity in the timing of differentiation

    Nick E Phillips et al.
    Stochasticity introduced computationally into a gene expression oscillator creates heterogeneity in the time of differentiation of identical cells and offers robustness to the progenitor state and the outcome of cell division.
    1. Cell Biology

    Selective sorting and destruction of mitochondrial membrane proteins in aged yeast

    Adam L Hughes et al.
    A new mitochondrial protein degradation pathway selectively sorts and destroys a subset of the mitochondrial membrane proteome to protect mitochondria in times of stress.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Deep learning models predict regulatory variants in pancreatic islets and refine type 2 diabetes association signals

    Agata Wesolowska-Andersen et al.
    Combination of deep learning models trained on tissue-specific genomic data and fine-mapping approaches supports efforts to identify causal variants and mechanisms at GWAS loci.
    1. Developmental Biology

    Compartmentalized oskar degradation in the germ plasm safeguards germline development

    Catherine E Eichler et al.
    RNP granules confer temporal and spatial regulation of oskar mRNA degradation to minimize inheritance of oskar mRNAby germ cells and thereby protect germline development.

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