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    1. Structural Biology and Molecular Biophysics
    2. Chromosomes and Gene Expression

    Mechanism for nuclease regulation in RecBCD

    Martin Wilkinson et al.
    DNA unwinding triggers a conformational change in the RecD subunit of E. coli RecBCD helicase-nuclease that is transferred through the RecC subunit to activate the nuclease domain of the RecB subunit.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    A contractile injection system stimulates tubeworm metamorphosis by translocating a proteinaceous effector

    Charles F Ericson et al.
    Bacteria produce a syringe-like structure, loaded with a single protein within the lumen of its needle-like tube, that is sufficient for stimulating animal metamorphosis.
    1. Microbiology and Infectious Disease

    Pirating conserved phage mechanisms promotes promiscuous staphylococcal pathogenicity island transfer

    Janine Bowring et al.
    Structural and genetic analyses reveal the highly evolved and unprecedented biological strategy used by SaPIs to spread in nature.
    1. Microbiology and Infectious Disease

    Phage Predation: Killing the killers

    Marianne De Paepe, Marie-Agnès Petit
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    1. Microbiology and Infectious Disease

    Evolutionary consequences of intra-patient phage predation on microbial populations

    Kimberley D Seed et al.
    Bacterial viruses are an unexpected ‘third party’ that imposes a strong predatory pressure on a bacterial pathogen during the natural course of infection in humans.
    1. Ecology
    2. Microbiology and Infectious Disease

    Ecology and evolution of viruses infecting uncultivated SUP05 bacteria as revealed by single-cell- and meta-genomics

    Simon Roux et al.
    Single-cell amplified genome sequencing uncovers virus-host interactions in uncultivated sulfur-oxidizing bacteria with relevance to coupled biogeochemical cycling in marine oxygen minimum zones.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structure in situ reveals a molecular switch that safeguards virus against genome loss

    Oliver W Bayfield et al.
    Structure of the portal protein of a thermostable virus, determined in its capsid-bound state, reveals a molecular mechanism that prevents DNA slippage during genome packaging.
    1. Microbiology and Infectious Disease

    Co-evolution within structured bacterial communities results in multiple expansion of CRISPR loci and enhanced immunity

    Nora C Pyenson, Luciano A Marraffini
    Cells must acquire multiple viral spacer sequences to neutralize mutant escaper phages and form colonies during the CRISPR-Cas immune response.
    1. Microbiology and Infectious Disease

    A type III-A CRISPR-Cas system employs degradosome nucleases to ensure robust immunity

    Lucy Chou-Zheng, Asma Hatoum-Aslan
    Degradosome-associated nucleases PNPase and RNase J2 are required for type III CRISPR immunity against diverse nucleic acid invaders originating from plasmid and phage.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Cooperative base pair melting by helicase and polymerase positioned one nucleotide from each other

    Divya Nandakumar et al.
    A detailed model of the T7 replisome with the precise positions of the helicase and polymerase at the replication fork explains how catalysis by the two enzymes is coordinated.