11 results found
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structures in multiple conformations reveal distinct transition metal and proton pathways in an Nramp transporter

    Aaron T Bozzi et al.
    Nramp-family transporters adapt a common fold to a novel mechanism in which the spatial and temporal separation of like-charge transition metal and proton co-substrates circumvents the expected electrostatic repulsion.
    1. Structural Biology and Molecular Biophysics

    Structural basis for DNA 5´-end resection by RecJ

    Kaiying Cheng et al.
    A structural investigation reveals details of the mechanism by which the nuclease RecJ processes DNA ends to repair double strand breaks.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Mechanistic basis of the inhibition of SLC11/NRAMP-mediated metal ion transport by bis-isothiourea substituted compounds

    Cristina Manatschal et al.
    The structural and mechanistic characterization of competitive inhibition of human DMT1 offers a promising route for the development of compounds for the treatment of iron overload disorders.
    1. Biochemistry and Chemical Biology

    Random-sequence genetic oligomer pools display an innate potential for ligation and recombination

    Hannes Mutschler et al.
    Random sequence RNA pools display an innate capacity for ligation and recombination, enabling them to “bootstrap” themselves towards higher compositional, informational and structural complexity.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Evolution of extreme resistance to ionizing radiation via genetic adaptation of DNA repair

    Rose T Byrne et al.
    Experiments on E. coli show that multiple mechanisms contribute to extreme resistance to ionizing radiation in bacteria, with mutations to three genes for DNA repair having a prominent role in one evolved population.
    1. Microbiology and Infectious Disease

    Kasugamycin potentiates rifampicin and limits emergence of resistance in Mycobacterium tuberculosis by specifically decreasing mycobacterial mistranslation

    Swarnava Chaudhuri et al.
    Kasugamycin potentiates rifampicin killing of Mycobacterium tuberculosis by targeting adaptive mistranslation.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Asymmetric activation mechanism of a homodimeric red light-regulated photoreceptor

    Geoffrey Gourinchas et al.
    Molecular insights to phytochrome activation and signal transduction over long distances enable the allosteric regulation of enzymatic effectors.
    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. Chromosomes and Gene Expression
    2. Microbiology and Infectious Disease

    Recombinational branch migration by the RadA/Sms paralog of RecA in Escherichia coli

    Deani L Cooper, Susan T Lovett
    The role of the bacterial protein RadA in homologous recombination – a DNA repair pathway vital to all cells – is defined.

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