184 results found
    1. Microbiology and Infectious Disease

    Single cell, super-resolution imaging reveals an acid pH-dependent conformational switch in SsrB regulates SPI-2

    Andrew Tze Fui Liew et al.
    Inside the acidic vacuole, expression, DNA binding and DNA binding affinity of the Salmonella regulator SsrB is stimulated by acid pH.
    1. Structural Biology and Molecular Biophysics

    Single-molecule observation of ATP-independent SSB displacement by RecO in Deinococcus radiodurans

    Jihee Hwang et al.
    RecO efficiently displaces SSB from ssDNA without consuming ATPs using its two DNA-binding sites, even though SSB binds to ssDNA approximately 300 times more strongly than RecO does.
    1. Microbiology and Infectious Disease

    The horizontally-acquired response regulator SsrB drives a Salmonella lifestyle switch by relieving biofilm silencing

    Stuti K Desai et al.
    A response regulator acquired via lateral gene transfer has rewired an ancestral genetic circuitry and regulates alternative pathogenic lifestyles.
    1. Biochemistry and Chemical Biology

    Imaging and energetics of single SSB-ssDNA molecules reveal intramolecular condensation and insight into RecOR function

    Jason C Bell et al.
    Individual SSB-ssDNA complexes undergo reversible condensation and de-condensation that is modulated by RecOR during recombination.
    1. Neuroscience

    C. elegans avoids toxin-producing Streptomyces using a seven transmembrane domain chemosensory receptor

    Alan Tran et al.
    Caenorhabditis elegans require a GPCR to recognize and rapidly escape from toxin-producing Streptomyces at their head or tail.
    1. Biochemistry and Chemical Biology

    Poly(ADP-ribose) polymerase 1 searches DNA via a ‘monkey bar’ mechanism

    Johannes Rudolph et al.
    By moving between DNA segments like a child swinging on monkey bars, poly(ADP-ribose) polymerase 1 explores possible DNA damage sites more effectively.
    1. Developmental Biology
    2. Neuroscience

    USP5/Leon deubiquitinase confines postsynaptic growth by maintaining ubiquitin homeostasis through Ubiquilin

    Chien-Hsiang Wang et al.
    Maintenance of ubiquitin homeostasis is essential for proper control of the size of postsynaptic density and the growth of specialized membrane structure.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Bacterial flagellar capping proteins adopt diverse oligomeric states

    Sandra Postel et al.
    The first high-resolution structure of a bacterial flagellar cap protein, FliD, reveals new insights into the assembly of bacterial flagella.
    1. Chromosomes and Gene Expression

    Translational initiation in E. coli occurs at the correct sites genome-wide in the absence of mRNA-rRNA base-pairing

    Kazuki Saito et al.
    E. coli ribosomes incapable of base-pairing with the Shine-Dalgarno sequence are still selective for annotated start sites, indicating these sites are hard-wired for initiation by other mRNA features.
    1. Cell Biology
    2. Developmental Biology

    Stepwise polarisation of developing bilayered epidermis is mediated by aPKC and E-cadherin in zebrafish

    Prateek Arora et al.
    Polarity cascade initiated by aPKC in the periderm is transduced by adherens junction component E-cadherin to the basal epidermis during the development of zebrafish bilayered epidermis.

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