799 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. 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. 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. 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.
    1. Immunology and Inflammation

    The HIV-1 envelope protein gp120 is captured and displayed for B cell recognition by SIGN-R1+ lymph node macrophages

    Chung Park et al.
    Lymph node gp120 specific B cells extract locally injected HIV-1 gp120 from SIGN-R1 positive macrophages that line the subcapsular sinus overlying the lymph node interfollicular channels.
    1. Chromosomes and Gene Expression
    2. Computational and Systems Biology

    Local genetic context shapes the function of a gene regulatory network

    Anna Nagy-Staron et al.
    The phenotype of a gene regulatory network depends both qualitatively and quantitatively on the local genetic context of its individual components and cannot necessarily be predicted solely from network's topology.
    1. Physics of Living Systems

    Controlling contractile instabilities in the actomyosin cortex

    Masatoshi Nishikawa et al.
    Combining quantitative biological experiment and physical description of actomyosin cortex reveals a contractile instability in the cortex of C. elegans embryo, and its biochemical control in order to robustly drive morphogenetic events.
    1. Computational and Systems Biology
    2. Genetics and Genomics

    Evidence for additive and synergistic action of mammalian enhancers during cell fate determination

    Jinmi Choi et al.
    Temporal changes in genome-wide enhancer transcription activity during a transdifferentiation event reveal additive and synergistic enhancer cooperation.

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