6,031 results found
    1. Developmental Biology
    2. Cell Biology

    Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes

    Hai Huang, Thomas B Kornberg
    Different cytoneme types require specific heparan sulfate proteoglycans (HSPGs) that are stratified within the extracellular matrix in Drosophila.
  1. Philosophy of Biology: Understanding regeneration at different scales

    Kate MacCord, Jane Maienschein
    To understand how regeneration works across the different scales of living systems, we first need to identify the essential components underlying this process.
    1. Microbiology and Infectious Disease

    The horizontally-acquired response regulator SsrB drives a Salmonella lifestyle switch by relieving biofilm silencing

    Stuti K Desai et al.
    A response regulator acquired via lateral gene transfer has rewired an ancestral genetic circuitry and regulates alternative pathogenic lifestyles.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Regulation of signaling directionality revealed by 3D snapshots of a kinase:regulator complex in action

    Felipe Trajtenberg et al.
    The molecular mechanism of switching between phosphotransferase- and phosphatase-competent states in histidine-kinases has been uncovered, through direct crystallographic observation of bona fide complexes between a histidine-kinase and its response regulator from Bacillus subtilise.
    1. Genetics and Genomics

    Regulatory network structure determines patterns of intermolecular epistasis

    Mato Lagator et al.
    Greater phenotypic variation is exposed by mutations in a gene regulatory system compared to mutations in its constitutive components, namely the transcription factor and the promoter, alone.
    1. Cell Biology

    SWELL1 regulates skeletal muscle cell size, intracellular signaling, adiposity and glucose metabolism

    Ashutosh Kumar et al.
    LRRC8A is an essential component of a mechanoresponsive ion channel signaling complex that tunes skeletal muscle differentiation, muscle cell size, function and metabolic pathways to regulate adiposity and systemic glycemia.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Assembling the Tat protein translocase

    Felicity Alcock et al.
    Evolutionary bioinformatics and experimentation are applied to the components of the Tat protein transport system to elucidate the structure of the membrane-bound receptor complex and to deduce a molecular description for its substrate-triggered activation.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    Highly regulated, diversifying NTP-dependent biological conflict systems with implications for the emergence of multicellularity

    Gurmeet Kaur et al.
    Multicellular and socially aggregating prokaryotes contain previously undescribed, chaperone-based systems predicted to mediate defensive biological conflicts, several components of which are thematically similar antecedents of eukaryotic apoptosis pathways.
    1. Physics of Living Systems
    2. Structural Biology and Molecular Biophysics

    Phase Separation: Restricting the sizes of condensates

    Furqan Dar, Rohit Pappu
    Computer simulations of model proteins with sticker-and-spacer architectures shed light on the formation of biomolecular condensates in cells.
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    1. Cell Biology
    2. Developmental Biology

    Philosophy of Biology: The analysis of living systems can generate both knowledge and illusions

    Antony M Jose
    By thinking about experimental techniques in terms of six broad approaches – perturbation, visualization, substitution, characterization, reconstitution, and simulation – researchers may be able to generate more reliable inferences.

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