511 results found
    1. Evolutionary Biology

    Expansion of the fatty acyl reductase gene family shaped pheromone communication in Hymenoptera

    Michal Tupec et al.
    A fatty acyl reductase gene family expansion in the Hymenoptera crown group led to recruitment of novel pheromone-biosynthetic enzymes and is linked to evolution of pheromone marking behavior.
    1. Structural Biology and Molecular Biophysics
    2. Microbiology and Infectious Disease

    Functional role of the type 1 pilus rod structure in mediating host-pathogen interactions

    Caitlin N Spaulding et al.
    The helical rod structure and dynamic spring-like properties of the type 1 pilus are evolutionarily fine-tuned for functioning in host-pathogen interactions during urinary tract infection and gut colonization.
    1. Microbiology and Infectious Disease

    Genetically diverse uropathogenic Escherichia coli adopt a common transcriptional program in patients with UTIs

    Anna Sintsova et al.
    Conserved transcriptomic profile of uropathogenic E. coli in patients identifies an infection-specific metabolic state.
    1. Computational and Systems Biology
    2. Microbiology and Infectious Disease

    A long-term epigenetic memory switch controls bacterial virulence bimodality

    Irine Ronin et al.
    Hysteretic switching between virulence states has been observed in a human pathogen.
    1. Immunology and Inflammation
    2. Microbiology and Infectious Disease

    Enteric pathogens deploy cell cycle inhibiting factors to block the bactericidal activity of Perforin-2

    Ryan M McCormack et al.
    Yersinia pseudotuberculosis and enteropathogenic Escherichia coli promote pathogenicity by deamidating the ubiquitin-like protein NEDD8 to block ubiquitin-dependent trafficking of Perforin-2, which is an effector of innate immunity.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Membrane characteristics tune activities of endosomal and autophagic human VPS34 complexes

    Yohei Ohashi et al.
    The lipid kinase VPS34 complexes I and II are both activated by unsaturation of substrate and non-substrate lipids, curvature, electrostatics and polyphosphoinositides, which play roles in localisation and cellular function.
    1. Structural Biology and Molecular Biophysics

    Cryo-EM structures and functional properties of CALHM channels of the human placenta

    Katarzyna Drożdżyk et al.
    Members of the calcium homeostasis modulator family expressed in the placenta form large channels with unknown activation properties that harbor a lipid bilayer on the inside of a cylindrical pore.
    1. Microbiology and Infectious Disease

    Dominant Vibrio cholerae phage exhibits lysis inhibition sensitive to disruption by a defensive phage satellite

    Stephanie G Hays, Kimberley D Seed
    Genetic and molecular analyses identify and characterize an evolutionary battle over lysis timing wherein a bacteriophage delays lysis through lysis inhibition while a defensive phage satellite accelerates lysis.
    1. Biochemistry and Chemical Biology

    Lipid polarity gradient formed by ω-hydroxy lipids in tear film prevents dry eye disease

    Masatoshi Miyamoto et al.
    (O-Acyl)-ω-hydroxy fatty acids and their derivatives, produced by the fatty acid ω-hydroxylase Cyp4f39, form a lipid polarity gradient in the lipid layer of the tear film and prevent dry eye.
    1. Medicine

    Late-life restoration of mitochondrial function reverses cardiac dysfunction in old mice

    Ying Ann Chiao et al.
    Mitochondrial-targeted SS-31 peptide ameliorates mitochondrial dysfunction and rescues pre-existing cardiac dysfunction in old mice, supporting the translational potential of mitochondrial protective interventions to treat age-related diseases.

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