2,300 results found
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    SNPC-1.3 is a sex-specific transcription factor that drives male piRNA expression in C. elegans

    Charlotte P Choi et al.
    snpc-1.3 specifies male piRNA transcription and is regulated by the sex determination pathway.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Insights into HIV-1 proviral transcription from integrative structure and dynamics of the Tat:AFF4:P-TEFb:TAR complex

    Ursula Schulze-Gahmen et al.
    The crystal structure of the trans-activation response region (TAR) bound to HIV-1 Tat and an elongation factor, together with HDX, SHAPE, SAXS, and integrative modeling, shows how TAR binds this complex in two ways.
    1. Cell Biology
    2. Genetics and Genomics

    Manipulation of the human tRNA pool reveals distinct tRNA sets that act in cellular proliferation or cell cycle arrest

    Noa Aharon-Hefetz et al.
    Systematic CRISPR-based editing of tRNA genes revealed that different human cells that span a range of growth rates and different modes of proliferation states require diverse tRNA sets.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Genome plasticity in Candida albicans is driven by long repeat sequences

    Robert T Todd et al.
    Previously uncharacterized long repeat sequences are associated with significant genome variation that can increase fitness and promote antifungal drug resistance in diverse isolates of Candida albicans.
    1. Computational and Systems Biology

    Determination of ubiquitin fitness landscapes under different chemical stresses in a classroom setting

    David Mavor et al.
    Chemical perturbation-dependent deep mutational scanning data collected by a lab-based interdisciplinary graduate class resolves a paradox between the high evolution conservation and the high mutational tolerance of the protein ubiquitin.
    1. Evolutionary Biology

    The birth of a bacterial tRNA gene by large-scale, tandem duplication events

    Gökçe B Ayan et al.
    A bacterial tRNA gene set rapidly evolves, compensating the loss of one tRNA type by large duplication events that increase the gene copy number of a second, different tRNA type.
    1. Evolutionary Biology

    Molecular function limits divergent protein evolution on planetary timescales

    Mariam M Konaté et al.
    Orthologous proteins that continuously maintain the same molecular function do not usually diverge beyond a certain level of sequence and structural similarity.
    1. Developmental Biology
    2. Microbiology and Infectious Disease

    High fat diet induces microbiota-dependent silencing of enteroendocrine cells

    Lihua Ye et al.
    Enteroendocrine cells sense nutrients in the gut and regulate digestive physiology but are rendered insensitive following fat ingestion due to alteration of gut microbiota.
    1. Microbiology and Infectious Disease

    Gut microbiota density influences host physiology and is shaped by host and microbial factors

    Eduardo J Contijoch et al.
    The density of the gut microbiota influences the host immune system and adiposity, and can be therapeutically manipulated.
    1. Evolutionary Biology

    Robust and accurate prediction of residue–residue interactions across protein interfaces using evolutionary information

    Sergey Ovchinnikov et al.
    Co-evolving residue pairs in the different components of a protein complex almost always make contact across the protein–protein interface, thus providing powerful restraints for the modeling of protein complexes.

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