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    1. Cell Biology

    Paradoxical resistance of multiple myeloma to proteasome inhibitors by decreased levels of 19S proteasomal subunits

    Diego Acosta-Alvear et al.
    The nodes of the cytosolic proteostasis network can control sensitivity to proteasome inhibitors and decreased levels of the 19S proteasomal regulator can lead to increased resistance to inhibitors.
    1. Cell Biology
    2. Developmental Biology

    Proteasome dysfunction triggers activation of SKN-1A/Nrf1 by the aspartic protease DDI-1

    Nicolas J Lehrbach, Gary Ruvkun
    Post-translational processing of the SKN-1A/Nrf1 transcription factor regulates proteasome expression.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Phosphorylation and activation of ubiquitin-specific protease-14 by Akt regulates the ubiquitin-proteasome system

    Daichao Xu et al.
    Akt can regulate the ubiquitin-proteasome system by mediating phosphorylation and activation of USP14, which may have implications in the control of global proteostasis by growth factors and in tumorigenesis.
    1. Cell Biology

    p97-dependent retrotranslocation and proteolytic processing govern formation of active Nrf1 upon proteasome inhibition

    Senthil K Radhakrishnan et al.
    The enzyme p97/VCP regulates the activity of the transcription factor Nrf1 to promote increased transcription of genes that encode proteasome subunits following inhibition of the proteasome.
    1. Microbiology and Infectious Disease

    An aspartyl protease defines a novel pathway for export of Toxoplasma proteins into the host cell

    Michael J Coffey et al.
    The Toxoplasma parasite requires an enzyme called ASP5 to cleave proteins for export into host cells.
    1. Cell Biology

    The proteasome biogenesis regulator Rpn4 cooperates with the unfolded protein response to promote ER stress resistance

    Rolf M Schmidt et al.
    Endoplasmic reticulum stress in yeast activates not only the UPR but also Rpn4, promoting the clearance of misfolded proteins from the cytosol as part of a modular cross-compartment stress response.
    1. Neuroscience

    Role of the visual experience-dependent nascent proteome in neuronal plasticity

    Han-Hsuan Liu et al.
    A screen of visual-experience induced changes in newly-synthesized proteins in Xenopus optic tectum identifies unexpected candidate plasticity proteins.
    1. Neuroscience

    Proteome profile of peripheral myelin in healthy mice and in a neuropathy model

    Sophie B Siems et al.
    A comprehensive compendium of myelin proteins in the peripheral nervous system has been created, alongside a method to address molecular diversity of myelin sheaths in health and disease.
    1. Immunology and Inflammation

    Quantitative analysis of how Myc controls T cell proteomes and metabolic pathways during T cell activation

    Julia M Marchingo et al.
    Myc-dependent induction of amino acid transporter expression in response to T cell receptor activation is essential to enable T cell proteome remodelling upon immune activation.
    1. Computational and Systems Biology

    In-depth human plasma proteome analysis captures tissue proteins and transfer of protein variants across the placenta

    Maria Pernemalm et al.
    Comprehensive mass spectrometry analysis of human plasma proteome reveals tissue leakage proteins, describes variability between individual plasma proteomes and demonstrates protein transfer across the placenta during pregnancy.