451 results found
    1. Immunology and Inflammation

    TLR induces reorganization of the IgM-BCR complex regulating murine B-1 cell responses to infections

    Hannah P Savage et al.
    B-1 cell unresponsiveness to antigen-stimulation is overcome during infections when Toll-like receptor engagement removes negative regulators of B cell receptor signaling, thereby supporting B-1 cell differentiation to IgM-secreting plasmablasts.
    1. Biochemistry and Chemical Biology
    2. Evolutionary Biology

    Ancestral reconstruction reveals mechanisms of ERK regulatory evolution

    Dajun Sang et al.
    Tight regulation of a central developmental kinase cascade evolved through two key mutations.
    1. Neuroscience

    Neuropeptide B mediates female sexual receptivity in medaka fish, acting in a female-specific but reversible manner

    Towako Hiraki-Kajiyama et al.
    In the brain of medaka fish, neuropeptide B acts directly downstream of estrogen in a female-specific but reversible manner to mediate female receptivity to male courtship.
    1. Neuroscience

    Neuroanatomy of a hydrothermal vent shrimp provides insights into the evolution of crustacean integrative brain centers

    Julia Machon et al.
    A neuroanatomical analysis of Rimicaris exoculata provides insights into these animal’s brain architecture to illustrate possible adaptations to the hydrothermal vent habitat with its extreme physicochemical conditions.
    1. Biochemistry and Chemical Biology
    2. Immunology and Inflammation

    N-chlorination mediates protective and immunomodulatory effects of oxidized human plasma proteins

    Agnes Ulfig et al.
    N-chlorination, a reversible, oxidative modification, turns plasma proteins into holdase-like chaperones, potent activators of immune cells and pro-survival factors for phagocytic immune cells.
    1. Neuroscience

    Conditional deletion of glucocorticoid receptors in rat brain results in sex-specific deficits in fear and coping behaviors

    Jessie R Scheimann et al.
    Development of a conditional glucocorticoid receptor knockdown rat model allows for high resolution anatomical, physiological and behavioral exploration into the role of glucocorticoid receptor signaling in defined cell populations.
    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. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Structural and mutational analysis of the ribosome-arresting human XBP1u

    Vivekanandan Shanmuganathan et al.
    Two integrated approaches shed light on how XBP1 arrest peptide induces intermediate level of translational pausing and identify hotspot positions to make it stronger.
    1. Developmental Biology
    2. Genetics and Genomics

    Defective AMH signaling disrupts GnRH neuron development and function and contributes to hypogonadotropic hypogonadism

    Samuel Andrew Malone et al.
    Mouse in vivo and in vitro analysis and human genetic screening highlight the role of anti-Müllerian hormone (AMH) signaling in GnRH neuronal development and function, and identify mutations in AMH and AMHR2 in CHH patients.
    1. Microbiology and Infectious Disease

    A dedicated diribonucleotidase resolves a key bottleneck for the terminal step of RNA degradation

    Soo-Kyoung Kim et al.
    RNA degradation is completed through specific intermediates, such as diribonucleotides, which must be removed from the cells by a specific enzyme.

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