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

    The mechanism of variability in transcription start site selection

    Libing Yu et al.
    Variability in bacterial transcription start site selection involves DNA “scrunching” and “anti-scrunching,” which may represent a general mechanism for start site selection in all organisms.
    1. Chromosomes and Gene Expression

    Condensin controls recruitment of RNA polymerase II to achieve nematode X-chromosome dosage compensation

    William S Kruesi et al.
    C. elegans equalizes the expression of X-chromosome genes between the sexes by reducing the recruitment of RNA polymerase II to promoters of X-linked genes in hermaphrodites, using a chromosome-restructuring complex called condensin.
    1. Genetics and Genomics
    2. Microbiology and Infectious Disease

    An interbacterial DNA deaminase toxin directly mutagenizes surviving target populations

    Marcos H de Moraes et al.
    Interbacterial interactions can promote mutagenesis, and possibly adaptation, when intoxicated cells survive exposure to type VI secretion-delivered DNA deaminase toxins.
    1. Microbiology and Infectious Disease

    Cryo-EM reveals species-specific components within the Helicobacter pylori Cag type IV secretion system core complex

    Michael J Sheedlo et al.
    The structure of a Type IV secretion system provides a framework for understanding assembly of a protein-injection machine.
    1. Microbiology and Infectious Disease

    Structural basis for effector transmembrane domain recognition by type VI secretion system chaperones

    Shehryar Ahmad et al.
    A widespread family of chaperones functions to stabilize membrane protein effectors by mimicking transmembrane helical environments and promotes effector export by the bacterial type VI secretion system.
    1. Microbiology and Infectious Disease

    Quorum sensing control of Type VI secretion factors restricts the proliferation of quorum-sensing mutants

    Charlotte Majerczyk et al.
    Quorum-sensing control of Burkholderia thailandensis toxin and immunity pairs serves to police quorum-sensing mutants and may represent a general strategy whereby cooperators can police mutants.
    1. Chromosomes and Gene Expression
    2. Genetics and Genomics

    Quality control of transcription start site selection by nonsense-mediated-mRNA decay

    Christophe Malabat et al.
    RNA polymerase II generates numerous transcript isoforms, including transcripts initiating downstream of the START codon, that are efficiently degraded by the nonsense-mediated mRNA decay pathway.
    1. Microbiology and Infectious Disease

    Francisella tularensis enters a double membraned compartment following cell-cell transfer

    Shaun P Steele et al.
    Francisella tularensis spreads from cell to cell when macrophages engulf small portions of infected cells upon cell contact, forming distinctive a double membraned endosome containing multiple bacteria per individual vacuole.
    1. Microbiology and Infectious Disease

    Active invasion of bacteria into living fungal cells

    Nadine Moebius et al.
    Bacteria invade living fungal cells using secreted chitinolytic enzymes that allow for a traceless entry, as shown by microscopic snapshots.
    1. Physics of Living Systems

    Flower-like patterns in multi-species bacterial colonies

    Liyang Xiong et al.
    Mechanical interactions between bacterial species with different motility characteristics play an important role in spatial-temporal dynamics of multi-species bacterial colonies and can lead to formation of complex patterns.