473 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. 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. Biochemistry and Chemical Biology

    A bacterial riboswitch class for the thiamin precursor HMP-PP employs a terminator-embedded aptamer

    Ruben M Atilho et al.
    Many bacteria use a tiny riboswitch aptamer to sense the thiamin precursor HMP-PP to regulate the production of another thiamin precursor HET-P to efficiently biosynthesize this essential coenzyme.
    1. Computational and Systems Biology
    2. Human Biology and Medicine

    In-depth human plasma proteome analysis captures tissue proteins and transfer of protein variants across the placenta

    Maria Pernemalm et al.
    Comprehensive mass spectrometry analysis of human plasma proteome reveals tissue leakage proteins, describes variability between individual plasma proteomes and demonstrates protein transfer across the placenta during pregnancy.

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