207 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. Structural Biology and Molecular Biophysics

    Structural basis of ClpXP recognition and unfolding of ssrA-tagged substrates

    Xue Fei et al.
    Cryo-EM structures of the AAA+ ClpXP protease bound to an ssrA degron reveal the mechanism of substrate recognition and show how the machine transitions from recognition to translocation and unfolding.
    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. Cancer Biology

    The identification of dual protective agents against cisplatin-induced oto- and nephrotoxicity using the zebrafish model

    Jaime N Wertman et al.
    L-mimosine and dopamine protect against cisplatin-induced oto- and nephrotoxicity in zebrafish and human cell line models.
    1. Microbiology and Infectious Disease
    2. Structural Biology and Molecular Biophysics

    Ebola and Marburg virus matrix layers are locally ordered assemblies of VP40 dimers

    William Wan et al.
    Cryo-electron tomography reveals the structure and arrangement of the VP40 matrix protein lattice that mediates the formation of Ebola and Marburg virus particles.
    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. Developmental Biology
    2. Neuroscience

    Revisiting the role of Dcc in visual system development with a novel eye clearing method

    Robin J Vigouroux et al.
    A new eye-specific Dcc mutant combined with an improved clearing protocol for the eye and brain (EyeDISCO) reveals the requirement of the receptor Dcc for retinal development and maintenance.

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