Human sirtuins: Structures and flexibility
نویسندگان
چکیده
منابع مشابه
Size, shape, and flexibility of RNA structures.
Determination of sizes and flexibilities of RNA molecules is important in understanding the nature of packing in folded structures and in elucidating interactions between RNA and DNA or proteins. Using the coordinates of the structures of RNA in the Protein Data Bank we find that the size of the folded RNA structures, measured using the radius of gyration R(G), follows the Flory scaling law, na...
متن کاملSirtuins, aging, and metabolism.
Sirtuins are nicotinamide adenine dinucleotide (NAD)-dependent protein deacetylases that link protein acetylation, metabolism, aging, and diseases of aging. Sirtuins were initially found to slow aging in lower organisms and more recently shown to mediate many effects of calorie restriction on metabolism and longevity in mammals. This chapter focuses on two key mammalian sirtuins, SIRT1 (which r...
متن کاملSirtuins, Bioageing, and Cancer
The Sirtuins are a family of orthologues of yeast Sir2 found in a wide range of organisms from bacteria to man. They display a high degree of conservation between species, in both sequence and function, indicative of their key biochemical roles. Sirtuins are heavily implicated in cell cycle, cell division, transcription regulation, and metabolism, which places the various family members at crit...
متن کاملSirtuins, aging and diseases
SIR2 and related genes (sirtuins) are NAD-dependent deacetylases that link metabolism, protein acetylation and aging in a variety of species. Sirtuins are also involved in the longevity conferred by dietary or calorie restriction (CR). The mammalian sirtuins SIRT1-7 are involved in changes in stress resistance and metabolism that are triggered by CR, which not only extends life span, but also p...
متن کاملSirtuins, Metabolism, and Cancer
More than a decade ago, sirtuins were discovered as a highly conserved family of NAD(+)-dependent enzymes that extend lifespan in lower organisms. In mammals, sirtuins are key regulators of stress responses and metabolism, influencing a range of diseases, including diabetes, neurodegeneration, and cancer. In recent years, new functions of sirtuins have been characterized, uncovering the underly...
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ژورنال
عنوان ژورنال: Journal of Structural Biology
سال: 2016
ISSN: 1047-8477
DOI: 10.1016/j.jsb.2016.10.008