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    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    An elusive electron shuttle from a facultative anaerobe

    Emily Mevers et al.
    The identification of ACNQ as an extracellular electron shuttle solves a longstanding problem in bacterial physiology and provides new tool for bioenergy development.
    1. Computational and Systems Biology
    2. Structural Biology and Molecular Biophysics

    Functional cross-talk between allosteric effects of activating and inhibiting ligands underlies PKM2 regulation

    Jamie A Macpherson et al.
    Specific residues within an enzyme integrate allosteric inputs that originate from distinct ligand-binding pockets.
    1. Microbiology and Infectious Disease

    Changes in the genetic requirements for microbial interactions with increasing community complexity

    Manon Morin et al.
    Analysis of the global genetic requirements and gene expression changes in E. coli in the presence of a simple microbiome revealed pairwise and higher-order interactions, and underlying molecular mechanisms.
    1. Structural Biology and Molecular Biophysics

    Structure-based analysis of CysZ-mediated cellular uptake of sulfate

    Zahra Assur Sanghai et al.
    Structures of CysZ show a antiparallel membrane protein with an unanticipated fold and together with functional characterization provide insight into a bacterial sulfate translocating system.
    1. Structural Biology and Molecular Biophysics

    Structures of two aptamers with differing ligand specificity reveal ruggedness in the functional landscape of RNA

    Andrew John Knappenberger et al.
    RNA aptamers that are closely related and share a common scaffold can readily adapt to recognize new ligands through changes in just a few nucleotides.
    1. Genetics and Genomics

    Amino acid synthesis loss in parasitoid wasps and other hymenopterans

    Xinhai Ye et al.
    The synthesis capability of some amino acids is lost during the insect evolution, and hymenopteran parasitoids can make up for these deficiencies by altering free amino acid concentrations in host.
    1. Ecology
    2. Plant Biology

    Cytokinin transfer by a free-living mirid to Nicotiana attenuata recapitulates a strategy of endophytic insects

    Christoph Brütting et al.
    Cytokinin-dependent manipulation of plant metabolism is a strategy employed not only by gallers and leaf-miners but also by a free-living insect, Tupiocoris notatus, which directly transfers cytokinins at feeding sites to manipulate its host plant.
    1. Evolutionary Biology

    The genomes of polyextremophilic cyanidiales contain 1% horizontally transferred genes with diverse adaptive functions

    Alessandro W Rossoni et al.
    Horizontal gene transfer (HGT) analysis in polyextremophile red algae (Cyanidiales) provides explanations for the nonexistence of cumulative effects and eukaryotic pangenomes, and highlights differences between HGT and native genes.
    1. Computational and Systems Biology

    Metabolic network percolation quantifies biosynthetic capabilities across the human oral microbiome

    David B Bernstein et al.
    A novel metabolic network analysis method enables large-scale computational predictions of biosynthetic capabilities across the human oral microbiome, revealing a unique cluster of fastidious microorganisms and potential metabolic interdependencies.
    1. Biochemistry and Chemical Biology

    eIF1A residues implicated in cancer stabilize translation preinitiation complexes and favor suboptimal initiation sites in yeast

    Pilar Martin-Marcos et al.
    Substitutions in general translation initiation factor eIF1A found as recurring somatic mutations in uveal melanoma destabilize the closed conformation of the preinitiation complex at the start codon and increase discrimination against suboptimal initiation codons genome-wide.