42 results found
    1. Biochemistry and Chemical Biology
    2. Developmental Biology

    Haploinsufficiency of Trp53 dramatically extends the lifespan of Sirt6-deficient mice

    Shrestha Ghosh et al.
    The dramatic extension of lifespan in Sirt6-deficient mice by Trp53 haploinsufficiency suggests that SIRT6 has distinct biological function from SIRT1 in regulating p53 activity and preventing cells from senescence/apoptosis.
    1. Cell Biology

    SIRT2 deacetylase regulates the activity of GSK3 isoforms independent of inhibitory phosphorylation

    Mohsen Sarikhani et al.
    Mass spectroscopy, molecular modeling and/or molecular dynamics simulations reveal how acetylation regulates the activity of GSK3 isoforms independent of inhibitory phosphorylation.
    1. Biochemistry and Chemical Biology
    2. Chromosomes and Gene Expression

    Boosting ATM activity alleviates aging and extends lifespan in a mouse model of progeria

    Minxian Qian et al.
    The ATM-SIRT6 axis integrates the DNA repair machinery to longevity-promoting pathways.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    SIRT6 regulates Ras-related protein R-Ras2 by lysine defatty-acylation

    Xiaoyu Zhang et al.
    A posttranslational regulatory mechanism for a Ras family small GTPase could open up new directions to understand and control the Ras family of proteins that are important for physiology and diseases.
    1. Biochemistry and Chemical Biology
    2. Cell Biology

    SIRT2 and lysine fatty acylation regulate the transforming activity of K-Ras4a

    Hui Jing et al.
    A new post-translational regulatory mechanism of K-Ras is identified, which expands the function of reversible protein lysine fatty acylation and offers new possibility to target the K-Ras oncoprotein.
    1. Cell Biology
    2. Developmental Biology

    tRNA synthetase counteracts c-Myc to develop functional vasculature

    Yi Shi et al.
    In addition to its cytoplasmic role for translation, the seryl-tRNA synthetase also antagonizes the c-Myc transcription factor in the nucleus to transcriptionally repress the growth factor VEGFA and ensure proper development of the vasculature in vertebrates.
    1. Cell Biology

    The role of IMP dehydrogenase 2 in Inauhzin-induced ribosomal stress

    Qi Zhang et al.
    The small molecule Inauhzin possesses a dual targeting ability, and activates p53 by targeting two enzymes—SIRT1 and IMP dehydrogenase 2 (IMPDH2)—which are highly expressed in human cancers.
    1. Biochemistry and Chemical Biology

    Identification of ‘erasers’ for lysine crotonylated histone marks using a chemical proteomics approach

    Xiucong Bao et al.
    Sirt3 functions as decrotonylase to regulate histone crotonylation dynamics.
    1. Physics of Living Systems

    Ezrin enrichment on curved membranes requires a specific conformation or interaction with a curvature-sensitive partner

    Feng-Ching Tsai et al.
    Ezrin, an important actin-membrane linker, can zip adjacent membranes, be enriched to positively-curved membranes when phosphorylated and to negatively-curved membranes through a direct interaction with membrane curvature sensor I-BAR domain proteins.
    1. Developmental Biology

    Transient hypothyroidism favors oligodendrocyte generation providing functional remyelination in the adult mouse brain

    Sylvie Remaud et al.
    Production of remyelinating subventricular zone oligodendrocyte progenitors is stimulated by transient abrogation of thyroid hormone signalling in the adult neural stem cell niche.

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