5,699 results found
    1. Structural Biology and Molecular Biophysics

    Structural insights into the activation of human calcium-sensing receptor

    Xiaochen Chen et al.
    The cryo-electron microscopy structures of inactive and active states of calcium-sensing receptor (CaSR) reveal the activation mechanisms of CaSR.
    1. Developmental Biology
    2. Evolutionary Biology

    Gamete expression of TALE class HD genes activates the diploid sporophyte program in Marchantia polymorpha

    Tom Dierschke et al.
    The ancestral mechanism to activate diploid gene expression via homeodomain transcription factors was retained in liverworts, an early diverging land plant lineage, and subsequently co-opted during evolution of the diploid sporophyte body.
    1. Evolutionary Biology

    Binding affinity landscapes constrain the evolution of broadly neutralizing anti-influenza antibodies

    Angela M Phillips et al.
    CR9114, one of the most broadly neutralizing anti-influenza antibodies characterized to date, acquires affinity to divergent HA subtypes sequentially, due to higher order interactions between the nested sets of mutations required for binding each distinct subtype.
    1. Genetics and Genomics

    Human genetic analyses of organelles highlight the nucleus in age-related trait heritability

    Rahul Gupta et al.
    Although cellular organelles show a functional deterioration in aging, genetic loci associated with common age-associated disease instead nominate nuclear transcription factors across several age-related diseases.
    1. Cell Biology
    2. Stem Cells and Regenerative Medicine

    Inducible and reversible inhibition of miRNA-mediated gene repression in vivo

    Gaspare La Rocca et al.
    A new genetically engineered mouse strain is described in which miRNA activity can be acutely and reversibly inhibited, showing that in a subset of adult tissues miRNA activity is dispensable under homeostatic conditions but becomes essential during tissue regeneration.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Single-molecule imaging reveals the concerted release of myosin from regulated thin filaments

    Quentin M Smith et al.
    Direct single molecule visualization of striated muscle relaxation using thin filament tightropes reveals the concerted release of myosins, with implications for models of muscle function.
    1. Medicine
    2. Stem Cells and Regenerative Medicine

    Adult stem cell-derived complete lung organoid models emulate lung disease in COVID-19

    Courtney Tindle et al.
    An integrated stem cell-based disease modeling and computational approach demonstrates how proximal airway epithelium is critical for SARS-CoV-2 infectivity and distal alveolar cells are critical for simulating the host responses.
    1. Cancer Biology
    2. Chromosomes and Gene Expression

    YAP and TAZ are transcriptional co-activators of AP-1 proteins and STAT3 during breast cellular transformation

    Lizhi He et al.
    YAP and TAZ, the ultimate targets of the Hippo signaling pathway, are transcriptional co-activators of AP-1 proteins and STAT3 through which they are important for breast cellular transformation.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Comparison of transcriptional initiation by RNA polymerase II across eukaryotic species

    Natalia Petrenko, Kevin Struhl
    Although the preinitiation complex for transcriptional initiation by RNA polymerase II contains highly conserved general transcription factors, there are kinetic and compositional differences in the initiation process among eukaryotic species.
    1. Immunology and Inflammation

    Tissue environment, not ontogeny, defines murine intestinal intraepithelial T lymphocytes

    Alejandro J Brenes et al.
    In-depth proteomic analyses of intestinal tissue-resident intraepithelial T lymphocytes reveals how these cells are adapted to the intestinal environment through increased cholesterol and lipid metabolism, tailored metabolic profiles, receptors for interacting with epithelial cells, and tightly regulated signalling pathways.

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