300 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanisms of nucleotide selection by telomerase

    Matthew A Schaich et al.
    The roles of key telomerase active site residues were elucidated to determine how telomerase selects the correct from the incorrect nucleotide to maintain telomere integrity.
    1. Structural Biology and Molecular Biophysics

    Characterization of the kinetic cycle of an ABC transporter by single-molecule and cryo-EM analyses

    Ling Wang et al.
    The conformational dynamics of multidrug resistance protein 1 (MRP1) are tracked in real time by single-molecule fluorescence resonance energy transfer experiments, which elucidate the rate-limiting mechanism of MRP1's transport cycle.
    1. Developmental Biology

    A mammalian Wnt5a–Ror2–Vangl2 axis controls the cytoskeleton and confers cellular properties required for alveologenesis

    Kuan Zhang et al.
    Regulation of cellular properties such as ligand secretion and migratory ability through changes in the cytoskeleton mediated by a Wnt5a–Ror2–Vangl2 axis is a major determinant of alveolar formation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Heterogeneity of proteome dynamics between connective tissue phases of adult tendon

    Howard Choi et al.
    Metabolic labelling reveals complex proteome dynamics in tendon, with faster turnover of proteins in the glycoprotein-rich interfascicular matrix compared to the collagen-rich fascicular matrix.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Adult chondrogenesis and spontaneous cartilage repair in the skate, Leucoraja erinacea

    Aleksandra Marconi et al.
    The ability of cartilaginous fishes to generate new cartilage through adulthood, and to spontaneously repair damaged cartilage, could shed light on novel cell-based therapies for cartilage injury in mammals.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    A single power stroke by ATP binding drives substrate translocation in a heterodimeric ABC transporter

    Erich Stefan et al.
    Single-turnover studies reveal quantitative insights into the inner mechanics and unfold hidden facets in the conformational coupling of ATP binding, hydrolysis, and substrate translocation by ABC transporters.
    1. Human Biology and Medicine

    Potential harmful effects of discontinuing ACE-inhibitors and ARBs in COVID-19 patients

    Gian Paolo Rossi et al.
    Current evidence does not suggest adverse effects of ACE inhibitors or ARBs in COVID-19 patients and, to the contrary, discontinuing these drugs in these patients may potentially be harmful.
    1. Chromosomes and Gene Expression

    Telomere dysfunction cooperates with epigenetic alterations to impair murine embryonic stem cell fate commitment

    Mélanie Criqui et al.
    Cell lineage tracing and biochemical analysis of cell fate during murine stem cell differentiation demonstrates a specific cooperativity between perturbations in histone methylation and eroded telomeres that destabilize cell differentiation.

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