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    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    Extensive transmission of microbes along the gastrointestinal tract

    Thomas SB Schmidt et al.
    Microbial populations are continuous along the gastrointestinal tract, with increased transmission in colorectal cancer and rheumatoid arthritis patients.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Alternative splicing of coq-2 controls the levels of rhodoquinone in animals

    June H Tan et al.
    The switch from ubiquinone to rhodoquinone synthesis that is required for parasitic helminths to survive in anaerobic host tissues is due to alternative splicing of polyprenyltransferase COQ-2.
    1. Genetics and Genomics

    Differing isoforms of the cobalamin binding photoreceptor AerR oppositely regulate photosystem expression

    Haruki Yamamoto et al.
    A novel B12 containing photoreceptor is synthesized as two different isoforms that interact with the same transcription factor, with one isoform directing activation and the other promoting repression of photosystem synthesis.
    1. Microbiology and Infectious Disease

    NirD curtails the stringent response by inhibiting RelA activity in Escherichia coli

    Loïc Léger et al.
    Genetic and biochemical approaches uncover a novel mode of regulation of the alarmone synthetase RelA through a functional and direct interaction with the small subunit of the nitrite reductase NirD.
    1. Microbiology and Infectious Disease

    Droplet-based high-throughput cultivation for accurate screening of antibiotic resistant gut microbes

    William J Watterson et al.
    High-throughput droplet-based cultivation of gut microbes reduces biases of traditional cultivation strategies and thereby enables detection of difficult-to-culture organisms, which is required in applications such as antibiotic screening.
    1. Structural Biology and Molecular Biophysics
    2. Evolutionary Biology

    An atomic-resolution view of neofunctionalization in the evolution of apicomplexan lactate dehydrogenases

    Jeffrey I Boucher et al.
    The convergent evolution of unusually strict substrate specificity in apicomplexan LDHs arose by classic neofunctionalization of a duplicated MDH gene via few mutations of large effect.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Molecular basis for catabolism of the abundant metabolite trans-4-hydroxy-L-proline by a microbial glycyl radical enzyme

    Lindsey RF Backman et al.
    The common post-translational modification trans-4-hydroxy-L-proline is reversed by gut microbes with the help of hydroxyproline dehydratase (HypD), an enzyme that performs a radical chemical mechanism.
    1. Chromosomes and Gene Expression
    2. Evolutionary Biology

    Evolutionary principles of modular gene regulation in yeasts

    Dawn A Thompson et al.
    The divergence of gene regulation during evolution in yeast traces phylogenetic distance with prominent changes being associated with changes in lifestyle and a whole genome duplication event.
    1. Epidemiology and Global Health
    2. Microbiology and Infectious Disease

    Quantifying antibiotic impact on within-patient dynamics of extended-spectrum beta-lactamase resistance

    Rene Niehus et al.
    A data-driven within-host model reveals that different antibiotics are associated with divergent effects on antibiotic resistance carriage and abundance in hospitalised patients, with important implications for antibiotic stewardship.
    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    Mycobacterium tuberculosis induces decelerated bioenergetic metabolism in human macrophages

    Bridgette M Cumming et al.
    Quantifiable bioenergetic parameters, determined from extracellular flux analyses, are distinct between macrophages infected with Mycobacteriumtuberculosis or vaccine strain M. bovis BCG, enabling assessment of future vaccine and drug efficacy.