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    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Topoisomerase VI senses and exploits both DNA crossings and bends to facilitate strand passage

    Timothy J Wendorff, James M Berger
    The engagement of DNA crossings is shown to license ATP hydrolysis and DNA cleavage by topoisomerase VI, a finding with mechanistic ramifications for related GHKL ATPases and meiotic recombination machineries.
    1. Evolutionary Biology

    Resurrection of a global, metagenomically defined gokushovirus

    Paul C Kirchberger, Howard Ochman
    Isolation of a gokushovirus capable of lysogenizing enterobacteria challenges previous notions about the biology of the most prolific phages within the Microviridae and facilitates experimental study in a model organism.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Emergence and diversification of a host-parasite RNA ecosystem through Darwinian evolution

    Taro Furubayashi et al.
    In an in vitro RNA replication system, an RNA spontaneously diversifies and continuously evolves through coevolution with parasitic entities.
    1. Neuroscience

    Visual cue-related activity of cells in the medial entorhinal cortex during navigation in virtual reality

    Amina A Kinkhabwala et al.
    Cue cells in the medial entorhinal cortex encode visual cues during virtual navigation, supporting the hypothesis that the brain represents visual cue information to error-correct grid cell firing during path-integration.
    1. Neuroscience

    Neurosecretory protein GL stimulates food intake, de novo lipogenesis, and onset of obesity

    Eiko Iwakoshi-Ukena et al.
    Neurosecretory protein GL, a previously unknown mammalian neuropeptide, is a novel hypothalamic factor which regulates feeding behavior and peripheral lipogenesis in animals.
    1. Cell Biology

    Role of SAGA in the asymmetric segregation of DNA circles during yeast ageing

    Annina Denoth-Lippuner et al.
    The SAGA complex binds non-chromosomal DNA circles and prevents their spreading by attaching them to nuclear pores, thereby leading to the concomitant accumulation of DNA circles and pores in ageing yeast mother cells.
    1. Biochemistry and Chemical Biology

    Transport of DNA within cohesin involves clamping on top of engaged heads by Scc2 and entrapment within the ring by Scc3

    James E Collier et al.
    Rigorous biochemical and structural analyses reveal the precise topology of cohesin's association with DNA and suggest a mechanism for how DNA is transported inside the ring.
    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    The structural basis for dynamic DNA binding and bridging interactions which condense the bacterial centromere

    Gemma LM Fisher et al.
    A combination of structural, biochemical, single-molecule and in vivo methods are used to show how ParB locally condenses the bacterial chromosome near the origin and earmarks this region for segregation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    MutSα maintains the mismatch repair capability by inhibiting PCNA unloading

    Yoshitaka Kawasoe et al.
    Biochemical analysis in Xenopus egg extracts reveals that the MutSα mismatch sensor retains the DNA-bound replication clamp to maintain a post-replicative temporal window permissive to strand-specific repair of mismatches.
    1. Biochemistry and Chemical Biology

    A novel DNA primase-helicase pair encoded by SCCmec elements

    Aleksandra Bebel et al.
    SCCmec genomic islands encode a novel primase-helicase pair in which priming ability is conferred upon an A-family DNA polymerase domain by a novel protein cofactor.