42 results found
    1. Cell Biology
    2. Structural Biology and Molecular Biophysics

    The carboxyl-terminal sequence of bim enables bax activation and killing of unprimed cells

    Xiaoke Chi et al.
    The C-terminal membrane binding domain of Bim is shown to interact with and activate Bim enabling it to kill cells not dependent on anti-apoptotic proteins for survival.
    1. Biochemistry and Chemical Biology
    2. Structural Biology and Molecular Biophysics

    Epistatic mutations in PUMA BH3 drive an alternate binding mode to potently and selectively inhibit anti-apoptotic Bfl-1

    Justin M Jenson et al.
    Short peptides that bind tightly to anti-apoptotic protein Bfl-1 but not other Bcl-2 family members provide a tool for diagnosing cancer cell survival mechanisms and a lead for developing new therapeutics.
    1. Developmental Biology

    m6A RNA methylation impacts fate choices during skin morphogenesis

    Linghe Xi et al.
    METTL3-mediated m6A modification maintains proper cell lineage specification during skin epithelium morphogenesis by coupling transcription and translation of key regulatory pathways.
    1. Cell Biology
    2. Neuroscience

    Pregnancy-associated plasma protein-aa regulates endoplasmic reticulum–mitochondria associations

    Mroj Alassaf, Mary C Halloran
    An extracellular modulator of IGF1 signaling, Pappaa, regulates endoplasmic reticulum–mitochondria connections, which are critical for metabolic homeostasis and hair cell survival.
    1. Developmental Biology

    Fatty acid β-oxidation is required for the differentiation of larval hematopoietic progenitors in Drosophila

    Satish Kumar Tiwari et al.
    Genetic and molecular analyses reveal the decisive role of fatty acid oxidation (FAO) acting downstream to the ROS-JNK circuit essential for hemocyte progenitor differentiation in Drosophila..
    1. Cancer Biology

    MARCH5 mediates NOXA-dependent MCL1 degradation driven by kinase inhibitors and integrated stress response activation

    Seiji Arai et al.
    MARCH5 mediates a pathway driving MCL1 degradation in response to cellular stress, which sensitizes to BH3 mimetic drugs targeting BCLXL and provides a broadly effective therapeutic strategy for solid tumors.
    1. Cancer Biology
    2. Cell Biology

    Bim escapes displacement by BH3-mimetic anti-cancer drugs by double-bolt locking both Bcl-XL and Bcl-2

    Qian Liu et al.
    The pro-apoptotic BH3-protein Bim contains two distinct binding sites for anti-apoptotic proteins that together confer resistance of Bim/Bcl-2 and Bim/Bcl-XL complexes to BH3-mimetic drugs under development for use in humans.
    1. Cell Biology
    2. Neuroscience

    Active presynaptic ribosomes in the mammalian brain, and altered transmitter release after protein synthesis inhibition

    Matthew S Scarnati et al.
    Local presynaptic protein synthesis occurring at established nerve terminals in the mammalian brain provides a mechanism for rapidly controlling or restoring presynaptic proteins that affect neurotransmitter release and presynaptic efficiency.
    1. Cell Biology

    QIL1 is a novel mitochondrial protein required for MICOS complex stability and cristae morphology

    Virginia Guarani et al.
    A comprehensive analysis of the human MICOS complex has identified a novel subunit called QIL1 that is required for cristae junction formation in human cells and Drosophila, through its role in the assembly of the MICOS complex.
    1. Cell Biology

    TANGO1 recruits ERGIC membranes to the endoplasmic reticulum for procollagen export

    António JM Santos et al.
    Building on previous work (Nogueira et al., 2014), we describe a mechanism for the generation of a mega-carrier for the export of bulky procollagen from the endoplasmic reticulum.

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