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    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Guanidine hydrochloride reactivates an ancient septin hetero-oligomer assembly pathway in budding yeast

    Courtney R Johnson et al.
    A naturally-occurring small molecule acts as a chemical chaperone in vivo to alter the folding of a budding yeast septin and promote an oligomerization pathway that was lost during evolution.
    1. Cell Biology

    Nanoscale architecture of the Schizosaccharomyces pombe contractile ring

    Nathan A McDonald et al.
    Super-resolution microscopy reveals the nanoscale molecular architecture of 29 protein components of a eukaryotic contractile ring relative to the membrane.
    1. Structural Biology and Molecular Biophysics

    Structure and dynamics underlying elementary ligand binding events in human pacemaking channels

    Marcel P Goldschen-Ohm et al.
    Single-molecule resolution of cAMP binding to the ligand binding domain of pacemaking channels in zero-mode waveguides reveals the dynamics of the distinct steps underlying both binding and isomerization of the binding domain.
    1. Evolutionary Biology

    Intermolecular epistasis shaped the function and evolution of an ancient transcription factor and its DNA binding sites

    Dave W Anderson et al.
    Experimental mapping of the joint sequence space of an ancient transcription factor (TF) and its DNA binding sites reveals that epistasis across the molecular interface permitted the evolution of a new and specific TF-DNA complex.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    Midkine is a dual regulator of wound epidermis development and inflammation during the initiation of limb regeneration

    Stephanie L Tsai et al.
    Elucidation of the molecular basis of early wound epidermis dependence during salamander limb regeneration reveals midkine as a key modulator of wound epidermis development and wound-healing resolution.
    1. Evolutionary Biology
    2. Plant Biology

    Evolution of herbivore-induced early defense signaling was shaped by genome-wide duplications in Nicotiana

    Wenwu Zhou et al.
    Comparative transcriptomic analysis reveals the molecular basis and evolution of herbivore-associated early defense signaling in Nicotiana.
    1. Neuroscience

    Hypocretin neuron-specific transcriptome profiling identifies the sleep modulator Kcnh4a

    Laura Yelin-Bekerman et al.
    Comprehensive gene profiling of the hypothalamic hypocretin neurons, high resolution imaging and behavioral assays have revealed the molecular signature of these versatile neurons and identified a potassium channel that is required for nighttime sleep.
    1. Structural Biology and Molecular Biophysics
    2. Computational and Systems Biology

    Molecular dynamics-based refinement and validation for sub-5 Å cryo-electron microscopy maps

    Abhishek Singharoy et al.
    New hybrid structure determination methods leveraging the inherent biophysical properties of a macromolecule through molecular dynamics simulations provide accurate and cost-efficient ways of achieving atomic structures from high resolution cryo-electron density maps.
    1. Cell Biology
    2. Evolutionary Biology

    Evolution of an ancient protein function involved in organized multicellularity in animals

    Douglas P Anderson et al.
    Experimentally reconstructing the evolution of the molecular complex that animals use to orient the mitotic spindle establishes a simple genetic and physical mechanism for the emergence of a function essential for multicellularity.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the Plasmodium falciparum 80S ribosome bound to the anti-protozoan drug emetine

    Wilson Wong et al.
    The molecular mechanism behind how emetine inhibits the ribosome of the human malaria parasite, along with structural details of the complex formed, is revealed at high resolution using cryo-electron microscopy.