730 results found
    1. Cell Biology

    A stress assembly that confers cell viability by preserving ERES components during amino-acid starvation

    Margarita Zacharogianni et al.
    Amino-acid starvation leads to the formation of a reversible stress assembly, the Sec body, which is a pro-survival reservoir for components of the ER exit sites.
    1. Cell Biology

    AMPK and vacuole-associated Atg14p orchestrate μ-lipophagy for energy production and long-term survival under glucose starvation

    Arnold Y Seo et al.
    Upon AMPK activation by acute glucose restriction, Atg14p shifts its distribution from ER exit sites to liquid-ordered membrane domains on the vacuolar surface where, together with Atg6p, it facilitates LD-specific autophagy (i.e., microautophagy of lipid droplets) for energy production and long-term survival of starved cells.
    1. Cell Biology

    Autophagy: COPII vesicles and the expansion of the phagophore

    Catherine Rabouille
    A new study has identified the proteins that adapt COPII vesicles to the needs of starving cells.
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    1. Microbiology and Infectious Disease

    Interplay between bacterial deubiquitinase and ubiquitin E3 ligase regulates ubiquitin dynamics on Legionella phagosomes

    Shuxin Liu et al.
    A novel bacterial deubiquitinase with multiple chain types specificity regulates the association of ubiquitinated proteins on the phagosome of Legionella pneumophila.
    1. Cancer Biology
    2. Computational and Systems Biology

    Dynamics of nevus development implicate cell cooperation in the growth arrest of transformed melanocytes

    Rolando Ruiz-Vega et al.
    Spontaneous growth arrest of transformed melanocytes (resulting in benign “moles”) does not result from cell-autonomous oncogene-induced senescence, but can be explained by collective mechanisms used in normal tissue size control.
    1. Cell Biology
    2. Genetics and Genomics

    Mapping endothelial-cell diversity in cerebral cavernous malformations at single-cell resolution

    Fabrizio Orsenigo et al.
    Single-cell RNA analysis of brain endothelium identifies the angiogenic venous capillary subset and respective resident endothelial progenitors at the origin of CCM lesions, while arterial endothelial cells are unaffected.
    1. Cell Biology
    2. Computational and Systems Biology

    The transcriptomic response of cells to a drug combination is more than the sum of the responses to the monotherapies

    Jennifer EL Diaz et al.
    The transcriptomic profiles of the constituent monotherapies of synergistic drug pairs tend to be correlated and result in novel gene expression in the combinations.
    1. Plant Biology

    The manifold actions of signaling peptides on subcellular dynamics of a receptor specify stomatal cell fate

    Xingyun Qi et al.
    A binary cell fate decision to be or not to be stomata is regulated by multiple peptide ligands, each triggering a unique subcellular dynamics of their shared receptor.
    1. Genetics and Genomics

    Multiplexed measurement of variant abundance and activity reveals VKOR topology, active site and human variant impact

    Melissa A Chiasson et al.
    Human vitamin K epoxide reductase (VKOR) has a four transmembrane domain topology that supports the use of a homology model, enabling identification of active site residues and human variant impact.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    Regulating G protein-coupled receptors by topological inversion

    Bray Denard et al.
    Multiple biochemical assays show that the topology of CCR5 and possibly other GPCRs may be inverted by ceramide or other sphingolipids through the process of regulated alternative translocation.

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