605 results found
    1. Chromosomes and Gene Expression

    Ssd1 and Gcn2 suppress global translation efficiency in replicatively aged yeast while their activation extends lifespan

    Zheng Hu et al.
    Activation of the stress response pathway in young cells extends replicative lifespan, not by reducing global protein synthesis per se, but by Gcn4-mediated autophagy induction.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of alpha-synuclein fibrils

    Ricardo Guerrero-Ferreira et al.
    The alpha-synuclein fibril structure reported here buries residues 50-57 at the interface between its two protofilaments, suggesting that familial Parkinson's disease associated mutations in these residues lead to a structure not compatible with the one presented here.
    1. Cell Biology
    2. Developmental Biology

    Novel functions for integrin-associated proteins revealed by analysis of myofibril attachment in Drosophila

    Hannah J Green et al.
    Integrin and actin associated proteins are resolved into four layers within myofibril attachments, an architecture requiring balanced positive and negative regulation of integrin adhesion with integrated mechanotransduction and actin pathways.
    1. Cell Biology
    2. Developmental Biology

    Radially patterned cell behaviours during tube budding from an epithelium

    Yara E Sanchez-Corrales et al.
    Quantitative analysis in quasi-3D reveals apically driven cell behaviours that are closely coordinated across the tissue to allow ordered tube invagination through a focal point.
    1. Neuroscience
    2. Structural Biology and Molecular Biophysics

    Cryo-EM structure of the benzodiazepine-sensitive α1β1γ2S tri-heteromeric GABAA receptor in complex with GABA

    Swastik Phulera et al.
    Structure of the triheteromeric α1β1γ2S GABAA receptor in complex with GABA illuminates the principles of receptor assembly and agonist binding.
    1. Biochemistry and Chemical Biology

    Efficient analysis of mammalian polysomes in cells and tissues using Ribo Mega-SEC

    Harunori Yoshikawa et al.
    Translationally active polysomes from mammalian cells/tissues are successfully separated with rapidity, high efficiency and exceptional reproducibility by a SEC-based approach, an accessible alternative to the conventional sucrose density gradient analysis.
    1. Cell Biology
    2. Computational and Systems Biology

    Multiple inputs ensure yeast cell size homeostasis during cell cycle progression

    Cecilia Garmendia-Torres et al.
    Yeast cell size homeostasis is not controlled by a G1-specific mechanism alone but is likely to be an emergent property resulting from the integration of several mechanisms that coordinate cell and bud growth with division.
    1. Developmental Biology
    2. Stem Cells and Regenerative Medicine

    JNK signaling triggers spermatogonial dedifferentiation during chronic stress to maintain the germline stem cell pool in the Drosophila testis

    Salvador C Herrera, Erika A Bach
    JNK pathway activity induces spermatogonial dedifferentiation under challenging conditions to maintain the germline stem cell pool and to endow it with potentially fitter cells that have increased proliferation.
    1. Neuroscience

    Rap2 and TNIK control Plexin-dependent tiled synaptic innervation in C. elegans

    Xi Chen et al.
    Plexin controls the spatial distribution of synapses by locally inhibiting Rap2 small GTPase activity along the axon, and a Rap2 effector, TNIK, which also plays a key role in inhibiting synapse number.
    1. Neuroscience

    State-dependent cell-type-specific membrane potential dynamics and unitary synaptic inputs in awake mice

    Aurélie Pala, Carl CH Petersen
    Membrane potential recordings in awake mice from two genetically defined classes of neocortical inhibitory neurons reveal their distinct patterns of activity and unitary excitatory synaptic inputs, which are differentially modulated by behavior and local network activity.

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