1,506 results found
    1. Structural Biology and Molecular Biophysics

    Valid molecular dynamics simulations of human hemoglobin require a surprisingly large box size

    Krystel El Hage et al.
    Simulations of the unliganded human hemoglobin tetramer, which for the first time yield a thermodynamically stable system, cast doubts on the use of standard solvent box sizes for molecular dynamics studies of biological macromolecules.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Point of View: Is cell size a spandrel?

    Ariel Amir
    Analysis of experiments on bacteria suggests that the dependence of cell size on growth rate is not an adaptation but a causal consequence of a regulatory mechanism that controls DNA replication.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cell Signaling: Uncovering the secret life of Rho GTPases

    Jenna A Perry, Amy Shaub Maddox
    New methods to directly visualize Rho GTPases reveal how a protein called RhoGDI regulates the activity of these 'molecular switches' at the plasma membrane.
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    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. Human Biology and Medicine
    2. Neuroscience

    MRI: Searching for epilepsy’s crystal ball

    Olli Gröhn, Alejandra Sierra
    Multi-modal MRI techniques have identified biomarkers that could help to predict whether someone will develop epilepsy.
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    1. Human Biology and Medicine
    2. Neuroscience

    Point of View: Predictive regulation and human design

    Peter Sterling
    Why does the human regulatory system, which evolution tuned for small satisfactions, now constantly demand 'more'?
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Chromosomes: Bacteria spring a surprise

    Ramanujam Srinivasan, Mohan K Balasubramanian
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    1. Ecology
    2. Evolutionary Biology

    Physiology: The highs and lows of bird flight

    Jon Harrison
    Bar-headed geese lower their flight metabolic rates to fly in low-oxygen conditions.
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