2,122 results found
    1. Cell Biology
    2. Genomics and Evolutionary Biology

    LINE-1 protein localization and functional dynamics during the cell cycle

    Paolo Mita et al.
    A combination of functional, biochemical and imaging studies show that LINE-1/L1 proteins and mRNA enter the nucleus through mitotic nuclear membrane breakdown, interact with components of the DNA replication fork and mediate retrotransposition during S phase.
    1. Computational and Systems Biology
    2. Biochemistry and Chemical Biology

    Dissection of affinity captured LINE-1 macromolecular complexes

    Martin S Taylor et al.
    The range of molecular forms adopted by L1 retrotransposons reflect a tapestry of lifecycle-permissive and -restrictive host-parasite interactions occurring within cells.
    1. Genes and Chromosomes
    2. Immunology and Inflammation

    Gene-specific mechanisms direct glucocorticoid-receptor-driven repression of inflammatory response genes in macrophages

    Maria A Sacta et al.
    A comprehensive analysis of the glucocorticoid-sensitive pro-inflammatory genes in macrophages reveals fundamental differences between the temporal events and components of transcriptional machinery that the glucocorticoid receptor targets to repress their transcription.
    1. Cell Biology
    2. Genomics and Evolutionary Biology

    Retrotransposons: On the move

    Sandra L Martin
    The mechanisms by which a retrotransposon called LINE-1 duplicates itself and spreads through the human genome are becoming clearer.
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    1. Microbiology and Infectious Disease

    Molecular coordination of Staphylococcus aureus cell division

    Victoria A Lund et al.
    Morphological constraints dictate division mode in the human pathogen Staphylococcus aureus.
    1. Biophysics and Structural Biology

    Molecular Chaperones: Confirmation for conformational selection

    Yajun Jiang, Charalampos G Kalodimos
    NMR studies settle part of a long-standing debate about the mechanism used by the Hsp70 chaperone to recognize substrates.
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    1. Biochemistry and Chemical Biology
    2. Biophysics and Structural Biology

    3.3-Å resolution cryo-EM structure of human ribonucleotide reductase with substrate and allosteric regulators bound

    Edward J Brignole et al.
    Cryo-electron microscopy structures of human ribonucleotide reductase reveal molecular details of substrate selection and allosteric inhibition through assembly of its large subunit into a ring that excludes its small subunit.
    1. Biophysics and Structural Biology

    Conserved conformational selection mechanism of Hsp70 chaperone-substrate interactions

    Ashok Sekhar et al.
    NMR-based flux measurements show that both bacterial and human Hsp70 chaperones interact with helical, as well as sheet substrates predominantly through a conformational selection mechanism.
    1. Ecology

    Hibernation: Life in the fast lane

    C Loren Buck
    Dormice born late in the year start to prepare for winter sooner than mice born earlier in the year.
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    1. Genes and Chromosomes

    Therapeutic effects of telomerase in mice with pulmonary fibrosis induced by damage to the lungs and short telomeres

    Juan Manuel Povedano et al.
    Telomerase gene therapy represents a novel effective treatment for pulmonary fibrosis associated with short telomeres by improving pulmonary function, decreasing inflammation and accelerating fiber disappearance in fibrotic lungs.

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