3,602 results found
    1. Biochemistry and Chemical Biology
    2. Computational and Systems Biology

    Mapping the functional versatility and fragility of Ras GTPase signaling circuits through in vitro network reconstitution

    Scott M Coyle, Wendell A Lim
    A systems level reconstitution of H-Ras GTPase signaling reveals a rich space of tunable dynamic outputs and clarifies the consequences of oncogenic perturbations to signaling.
    1. Structural Biology and Molecular Biophysics

    Structural analysis of autoinhibition in the Ras-specific exchange factor RasGRP1

    Jeffrey S Iwig et al.
    A key activator of Ras signaling adopts an autoinhibited, dimeric conformation that is activated by membrane and calcium binding.
    1. Cell Biology

    Salt-inducible kinases mediate nutrient-sensing to link dietary sugar and tumorigenesis in Drosophila

    Susumu Hirabayashi, Ross L Cagan
    The ability of tumors to respond to nutritional signals is mediated by Salt-inducible kinases, which ensure tumor growth under nutrient-rich conditions including obesity.
    1. Cancer Biology
    2. Developmental Biology

    Targeting mutant RAS in patient-derived colorectal cancer organoids by combinatorial drug screening

    Carla S Verissimo et al.
    Libraries of patient-derived tumor organoids are a reliable and scalable model system that can help identify and optimize targeted therapies in a pre-clinical setting.
    1. Neuroscience

    Mapping quantal touch using 7 Tesla functional magnetic resonance imaging and single-unit intraneural microstimulation

    Rosa Maria Sanchez Panchuelo et al.
    The combination of intraneural microstimulation and 7T fMRI makes it possible to bridge the gap between first-order mechanoreceptive afferent input codes and their spatial, dynamic and perceptual representations in human cortex.
    1. Neuroscience

    A Cambrian origin for vertebrate rods

    Sabrina Asteriti et al.
    Several key functional features of jawed vertebrate rods are also present in lamprey photoreceptors, indicating that our Cambrian ancestors possessed dim light vision.
    1. Structural Biology and Molecular Biophysics
    2. Cell Biology

    Specific cancer-associated mutations in the switch III region of Ras increase tumorigenicity by nanocluster augmentation

    Maja Šolman et al.
    Rare mutations in the switch III region of Ras can increase its nanoscale clustering, which enhances effector recruitment and downstream signaling.
    1. Cancer Biology

    BRET-based RAS biosensors that show a novel small molecule is an inhibitor of RAS-effector protein-protein interactions

    Nicolas Bery et al.
    A biosensor resource has been developed to monitor the intracellular interactions of RAS family proteins with effector molecules and the effects of inhibitors as an aid to drug development.
    1. Cancer Biology

    Tumor-promoting function of apoptotic caspases by an amplification loop involving ROS, macrophages and JNK in Drosophila

    Ernesto Pérez et al.
    The oncogenic RasV12 keeps cells mutant for the tumor suppressor scribble in an undead-like condition, which is required for an amplification loop that promotes tumorigenesis.
    1. Neuroscience

    Phylogenetic variation in cortical layer II immature neuron reservoir of mammals

    Chiara La Rosa et al.
    The higher amount of cortical immature neurons in brains with expanded neocortices may represent a reservoir of young cells for mammals with reduced neurogenesis.

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