4,316 results found
    1. Cell Biology

    Exportin Crm1 is repurposed as a docking protein to generate microtubule organizing centers at the nuclear pore

    Xun X Bao et al.
    Microtubule nucleation from the nuclear envelope in fission yeast involves repurposing of nuclear export proteins for a non-export-related function, docking cytoplasmic proteins at nuclear pore complexes.
    1. Neuroscience

    Echolocation: Smart bats click twice

    Manfred Kössl, Julio Hechavarría
    The acoustic representation of the outside world in the midbrain of a bat becomes more precise as it uses double clicks to locate closer objects.
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    1. Biochemistry and Chemical Biology
    2. Microbiology and Infectious Disease

    A unifying mechanism for the biogenesis of membrane proteins co-operatively integrated by the Sec and Tat pathways

    Fiona J Tooke et al.
    Bioinformatics and experimental approaches identify families of membrane proteins requiring the co-ordinated action of the Sec pathway and Tat pathways for their integration and define features of the polypeptides that mediate interaction with these pathways.
    1. Neuroscience

    Exercise-induced enhancement of synaptic function triggered by the inverse BAR protein, Mtss1L

    Christina Chatzi et al.
    Single episodes of voluntary exercise induced a functional increase in hippocampal synapses mediated by activity-dependent expression of the BAR protein Mtss1L, acting as a novel early effector of synapse formation.
    1. Cell Biology

    Disordered clusters of Bak dimers rupture mitochondria during apoptosis

    Rachel T Uren et al.
    Dimers of Bak assemble into clusters without using a distinct protein-protein interface, which may explain the apparent difficulties in obtaining high resolution structures of the pore complex and in targeting dimer-dimer interactions to regulate apoptosis.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Assembling the Tat protein translocase

    Felicity Alcock et al.
    Evolutionary bioinformatics and experimentation are applied to the components of the Tat protein transport system to elucidate the structure of the membrane-bound receptor complex and to deduce a molecular description for its substrate-triggered activation.
    1. Ecology

    Acoustic shadows help gleaning bats find prey, but may be defeated by prey acoustic camouflage on rough surfaces

    Elizabeth L Clare, Marc W Holderied
    Some species of bats hunt for insects that are resting on surfaces by detecting interruptions in the echoes from that surface, suggesting that resting on rough surfaces may help insects to evade detection by echolocation.
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    Molecular and topological reorganizations in mitochondrial architecture interplay during Bax-mediated steps of apoptosis

    Nicholas R Ader et al.
    Correlative microscopy and electron cryo-tomography on apoptotic HeLa cells reveal remodeling of outer and inner mitochondrial membranes, Bax cluster ultrastructure and ATP synthase reorganization in ruptured mitochondria.
    1. Ecology
    2. Evolutionary Biology

    Reduced metabolism supports hypoxic flight in the high-flying bar-headed goose (Anser indicus)

    Jessica U Meir et al.
    Measurements of bar-headed geese flying in a wind tunnel in hypoxia reveal that these birds sustain aerobic flight at high altitude via a reduction in metabolism.
    1. Cell Biology
    2. Developmental Biology

    The novel SH3 domain protein Dlish/CG10933 mediates fat signaling in Drosophila by binding and regulating Dachs

    Yifei Zhang et al.
    The Fat-regulated scaffolding protein Dlish controls the activity, levels and cortical localization of Warts-inhibiting myosin Dachs by linking Dachs to a critical Dachs regulator, the DHHC palmitoyltransferase Approximated, and to the Fat-mediated regulation of Dachs stability.

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