435 results found
    1. Cell Biology
    2. Human Biology and Medicine

    Defective STIM-mediated store operated Ca2+ entry in hepatocytes leads to metabolic dysfunction in obesity

    Ana Paula Arruda et al.
    Store operated calcium entry is defective in hepatocytes of obese mice, and restoring this process is sufficient to improve glucose metabolism.
    1. Chromosomes and Gene Expression

    Multiple kinases inhibit origin licensing and helicase activation to ensure reductive cell division during meiosis

    David V Phizicky et al.
    Meiotic cells inhibit two distinct steps of replisome assembly with multiple kinases to prevent DNA replication between Meiosis I and Meiosis II.
    1. Immunology and Inflammation

    High mTOR activity is a hallmark of reactive natural killer cells and amplifies early signaling through activating receptors

    Antoine Marçais et al.
    Chronic engagement of Natural killer cell inhibitory receptors by MHC-I molecules maintains a high activity of the mTOR pathway allowing subsequent amplification of signaling through activating receptors upon acute stimulation.
    1. Neuroscience

    The Ionotropic Receptors IR21a and IR25a mediate cool sensing in Drosophila

    Lina Ni et al.
    Two members of a widely studied family of chemoreceptors, the "orphan" chemoreceptor IR21a and its putative co-receptor IR25a, act together to mediate cool sensation in fruit fly larvae.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Ternatin and improved synthetic variants kill cancer cells by targeting the elongation factor-1A ternary complex

    Jordan D Carelli et al.
    An ancient complex comprising the eukaryotic elongation factor-1A and aminoacylated tRNA is shown to be the target of a cyclic heptapeptide and two unrelated natural products with potent anticancer activity.
    1. Cell Biology

    A sphingolipid-dependent diffusion barrier confines ER stress to the yeast mother cell

    Lori Clay et al.
    Sphingolipids govern the compartmentalization of yeast cells through the assembly of lateral diffusion barriers in ER membranes.
    1. Biochemistry and Chemical Biology
    2. Neuroscience

    NOVA-dependent regulation of cryptic NMD exons controls synaptic protein levels after seizure

    Taesun Eom et al.
    The HITS-CLIP sequencing method is used to demonstrate that cryptic exons can detect messenger RNA that contains nonsense mutations, and then cause this RNA to decay, which shows that these exons are involved in maintaining the electrical balance of neurons and, possibly, preventing epilepsy.
    1. Biochemistry and Chemical Biology

    Ribosomes slide on lysine-encoding homopolymeric A stretches

    Kristin S Koutmou et al.
    Ribosomes undergo an unanticipated movement (‘sliding’) while translating homopolymeric A sequences, which provides a biochemical rationale for the observation that iterated AAA codons are under-represented in gene-coding sequences.
    1. Cell Biology
    2. Developmental Biology

    Radical and lunatic fringes modulate notch ligands to support mammalian intestinal homeostasis

    Preetish Kadur Lakshminarasimha Murthy et al.
    Fringe proteins regulate Notch pathway differentially in the stem cell zone and progenitor compartment of the mouse intestinal epithelium to promote homeostasis.

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