890 results found
    1. Microbiology and Infectious Disease

    Regulatory roles of Escherichia coli 5' UTR and ORF-internal RNAs detected by 3' end mapping

    Philip P Adams et al.
    Multiple RNA-seq approaches globally mapped RNA 3´ ends resulting in the discovery of numerous and diverse RNA regulators.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Bridged filaments of histone-like nucleoid structuring protein pause RNA polymerase and aid termination in bacteria

    Matthew V Kotlajich et al.
    Bridged H-NS filaments inhibit transcript elongation by bacterial RNA polymerase by enhancing backtracking and increasing Rho-dependent termination at a subset of pause sites that are normally poor Rho substrates.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Transcription termination and antitermination of bacterial CRISPR arrays

    Anne M Stringer et al.
    Many bacteria use the Nus factor antitermination complex to prevent premature Rho-dependent transcription termination of their CRISPR arrays.
    1. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Gene autoregulation by 3’ UTR-derived bacterial small RNAs

    Mona Hoyos et al.
    Bacterial small RNAs derived from the 3' untranslated region of an mRNA can serve as autoregulatory elements.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Biochemistry and Chemical Biology
    2. Physics of Living Systems

    Optical estimation of absolute membrane potential using fluorescence lifetime imaging

    Julia R Lazzari-Dean et al.
    Fluorescence lifetime imaging microscopy, paired with fluorescent, voltage-sensitive dyes, provides a method for measuring and quantifying membrane potentials of living cells.
    1. Neuroscience

    An afferent white matter pathway from the pulvinar to the amygdala facilitates fear recognition

    Jessica McFadyen et al.
    A subcortical white matter connection from the pulvinar to the amygdala predicts how well we recognise fearful faces and the strength of feed-forward neural connectivity.
    1. Genetics and Genomics

    Firefly genomes illuminate parallel origins of bioluminescence in beetles

    Timothy R Fallon et al.
    The first genomic view of beetle luciferase evolution indicates evolutionary independence of luciferase between fireflies and click-beetles, and provide valuable datasets which will accelerate the discovery of new biotechnological tools.
    1. Chromosomes and Gene Expression

    A gene-specific T2A-GAL4 library for Drosophila

    Pei-Tseng Lee et al.
    A library of a thousand gene-specific intronic GAL4 insertions was generated, which caused a severe loss of function, permitted the assessing of gene expression, allowed the rescue of mutated gene with UAS-cDNA constructs, and provided a tool for the reversion of mutant phenotypes in specific cells or tissues.
    1. Computational and Systems Biology

    Phenotypic diversity and temporal variability in a bacterial signaling network revealed by single-cell FRET

    Johannes M Keegstra et al.
    Noise in a signaling network comprising thousands of molecules shapes diversity across cell populations and generates giant temporal fluctuations at the single-cell level.

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