2,838 results found
    1. Developmental Biology
    2. Microbiology and Infectious Disease

    The Wolbachia cytoplasmic incompatibility enzyme CidB targets nuclear import and protamine-histone exchange factors

    John Frederick Beckmann et al.
    Genetic and proteomic screening with Wolbachia's CidB enzyme reveal the mechanisms and targets of cytoplasmic incompatibility (CI).
    1. Cell Biology
    2. Chromosomes and Gene Expression

    RNA from a simple-tandem repeat is required for sperm maturation and male fertility in Drosophila melanogaster

    Wilbur Kyle Mills et al.
    Sperm production and male fertility in Drosophila melanogaster depend on transcripts generated from the AAGAG(n) repeated satellite DNA within primary spermatocytes.
    1. Chromosomes and Gene Expression

    Enhancer regions show high histone H3.3 turnover that changes during differentiation

    Aimee M Deaton et al.
    Nucleosomes at enhancers are unusually dynamic and change histone turnover rates during differentiation.
    1. Cell Biology
    2. Developmental Biology

    Developmentally regulated H2Av buffering via dynamic sequestration to lipid droplets in Drosophila embryos

    Matthew Richard Johnson et al.
    In early Drosophila embryos, histone H2Av continuously exchanges between cytoplasmic lipid droplets, a process that modulates H2Av import into nuclei and constitutes a novel post-translational strategy to regulate nuclear H2Av levels.
    1. Neuroscience

    Integrated externally and internally generated task predictions jointly guide cognitive control in prefrontal cortex

    Jiefeng Jiang et al.
    The dorsolateral prefrontal cortex integrates concurrent externally and internally generated predictions of task demand to guide information processing, while the medial prefrontal cortex corrects its prediction error based on actual task demand.
    1. Chromosomes and Gene Expression

    A histone H3K9M mutation traps histone methyltransferase Clr4 to prevent heterochromatin spreading

    Chun-Min Shan et al.
    A lysine-to-methionine mutation in histone H3 dominantly blocks histone H3K9 methylation by trapping its methyltransferase.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Constitutive turnover of histone H2A.Z at yeast promoters requires the preinitiation complex

    Michael Tramantano et al.
    The transcription machinery is required for the disassembly of the promoter-proximal H2A.Z nucleosome, contributing to the constitutive histone turnover at yeast promoters.
    1. Genetics and Genomics
    2. Evolutionary Biology

    Admixture into and within sub-Saharan Africa

    George BJ Busby et al.
    Gene flow analysis reveals that the genomes of most sub-Saharan populations are the result of recent historical admixture events.
    1. Evolutionary Biology
    2. Genetics and Genomics

    The evolutionary history and genomics of European blackcap migration

    Kira Delmore et al.
    Variation in migration can evolve rapidly and traits that comprise this behaviour may be determined by standing variation at a few regulatory regions that are not common across taxonomic groups.
    1. Computational and Systems Biology
    2. Chromosomes and Gene Expression

    Stochastic tuning of gene expression enables cellular adaptation in the absence of pre-existing regulatory circuitry

    Peter L Freddolino et al.
    Stochastic tuning of gene expression could be a common mechanism through which eukaryotic cells adapt to challenging external environments, potentially including survival of infectious organisms within the host and adaptation of cancer cells to chemotherapy.

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