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    1. Chromosomes and Gene Expression

    High-resolution mapping of heteroduplex DNA formed during UV-induced and spontaneous mitotic recombination events in yeast

    Yi Yin et al.
    Genome-wide mapping of heteroduplex DNA (a recombination intermediate) formed during mitotic recombination in yeast demonstrates that the "classical" model of double-strand DNA break repair is inadequate to explain several aspects of mitotic recombination.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Structure of the active form of human origin recognition complex and its ATPase motor module

    Ante Tocilj et al.
    The human Origin Replication Complex is shaped as a shallow corkscrew in a classic AAA+ organization reminiscent of clamp loader complexes with highly controlled ATPase activity as exemplified by Meier-Gorlin syndrome mutations.
    1. Cell Biology
    2. Developmental Biology

    Inverted formin 2 regulates intracellular trafficking, placentation, and pregnancy outcome

    Katherine Young Bezold Lamm et al.
    Loss of Inverted Formin-2 impairs intracellular trafficking and trophoblast invasion, resulting in maternal hypertension and intrauterine growth restriction, which represents a novel model of impaired placental invasion that encompasses critical aspects of the great obstetrical syndromes.
    1. Immunology and Inflammation

    The innate immune sensor IFI16 recognizes foreign DNA in the nucleus by scanning along the duplex

    Sarah A Stratmann et al.
    The scanning-assisted clustering mechanism of IFI16 not only allows efficient assembly on exposed foreign-dsDNA, but also suppresses the engagement of chromatinized self-dsDNA.
    1. Neuroscience

    Ciliary and rhabdomeric photoreceptor-cell circuits form a spectral depth gauge in marine zooplankton

    Csaba Verasztó et al.
    In a zooplankton larva, ciliary and rhabdomeric photoreceptor cells work antagonistically to form a spectral depth gauge.
    1. Biochemistry and Chemical Biology

    CRISPR-Cas12a exploits R-loop asymmetry to form double-strand breaks

    Joshua C Cofsky et al.
    The DNA flanks on either side of an R-loop differ in stability, and CRISPR-Cas12 enzymes form double-strand breaks by targeting the more unstable flank with their single DNase active site.
    1. Structural Biology and Molecular Biophysics

    Two forms of Opa1 cooperate to complete fusion of the mitochondrial inner-membrane

    Yifan Ge et al.
    An in vitro reconstitution assay reveals stoichiometric levels of the short form of Opa1 work together with the long form of Opa1 to mediate efficient and fast membrane pore opening.
    1. Cell Biology
    2. Microbiology and Infectious Disease

    Toxoplasma gondii F-actin forms an extensive filamentous network required for material exchange and parasite maturation

    Javier Periz et al.
    In contrast to current knowledge that predicts that apicomplexan actin is unconventional, use of Chromobodies demonstrate that Toxoplasma F-actin forms a long, stable, highly dynamic tubular network that is required for material transfer and parasite maturation.
    1. Neuroscience

    Dopamine neurons projecting to the posterior striatum form an anatomically distinct subclass

    William Menegas et al.
    Dopamine neurons projecting to different targets receive a similar set of inputs, rather than forming reciprocal connections, whereas those projecting to the posterior striatum receive a distinct set of inputs.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Activin A forms a non-signaling complex with ACVR1 and type II Activin/BMP receptors via its finger 2 tip loop

    Senem Aykul et al.
    The non-signaling complex formed by Activin A and ACVR1 is operant in vivo and is required to temper the degree of heterotopic ossification in the genetic disorder fibrodysplasia ossificans progressiva.