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    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Viruses: The secrets of the stability of the HIV-1 capsid

    Martin Obr, Hans-Georg Kräusslich
    Structural and biophysical studies help to follow the disassembly of the HIV-1 capsid in vitro, and reveal the role of a small molecule called IP6 in regulating capsid stability.
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    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. Neuroscience

    Neurophysiology: Serotonin's many meanings elude simple theories

    Peter Dayan, Quentin Huys
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    1. Stem Cells and Regenerative Medicine

    Regeneration: Learning about loss

    Alejandro Sánchez Alvarado
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    1. Neuroscience

    Serotonin: Slow motion

    Naoshige Uchida, Jeremiah Y Cohen
    Optogenetic stimulation of serotonin neurons in the dorsal raphe causes mice to move more slowly without causing any apparent motor deficits or anxiety-like effects.
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    1. Human Biology and Medicine

    Adverse Drug Reactions: The benefits of data mining

    Audrey Bone, Keith Houck
    Careful analysis of a database populated by physicians and patients sheds new light on the side effects of drugs.
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    1. Microbiology and Infectious Disease

    Research: A comprehensive and quantitative exploration of thousands of viral genomes

    Gita Mahmoudabadi, Rob Phillips
    A compendium of critical genomic numbers for viruses through the lenses of different viral classification systems.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Cell Cycle: Micromanaging checkpoint proteins

    Andrea Ciliberto, Silke Hauf
    The kinase Mps1, long known to be the 'boss' in mitotic checkpoint signaling, phosphorylates multiple proteins in the checkpoint signaling cascade.
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