383 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

    In vivo vizualisation of mono-ADP-ribosylation by dPARP16 upon amino-acid starvation

    Angelica Aguilera-Gomez et al.
    Amino-acid induced Sec body formation is mediated by PARP16 dependent MARylation of Sec16, a component of the endoplasmic reticulum exit site.
    1. Cell Biology
    2. Genetics and Genomics

    The ribosomal P-stalk couples amino acid starvation to GCN2 activation in mammalian cells

    Heather P Harding et al.
    Genetic lesions that compromise the ribosome P-stalk implicate direct signalling from the ribosome to the translation initiation factor eIF2 kinase GCN2 in the cellular response to amino acid starvation.
    1. Cell Biology

    Complementary α-arrestin-ubiquitin ligase complexes control nutrient transporter endocytosis in response to amino acids

    Vasyl Ivashov et al.
    Metabolic cues enlist ubiquitin ligase adaptors for the selective control of cellular nutrient acquisition strategies.
    1. Computational and Systems Biology

    Kinetic modeling predicts a stimulatory role for ribosome collisions at elongation stall sites in bacteria

    Michael A Ferrin, Arvind R Subramaniam
    Collision between ribosomes can cause dissociation of stalled ribosomes from messenger RNAs during the process of mRNA translation.
    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. Evolutionary Biology
    2. Genetics and Genomics

    Brain Size: Gene losses did not stop the evolution of big brains

    Cristian Cañestro, Vittoria Roncalli
    Elephants and fruit bats have evolved large brains even though they have lost a gene that is fundamental to the supply of energy to the brain when glucose is not available.
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    1. Biochemistry and Chemical Biology

    Gene Regulation: Acting in tandem

    Robert A Battaglia, Ailong Ke
    RNA structures called tandem riboswitches allow bacteria to employ complex logical operations in response to nutrient starvation.
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    1. Cell Biology

    Cancer Metabolism: Partners in the Warburg effect

    Joshua D Rabinowitz, Hilary A Coller
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