Catchers of folding gone awry: a tale of small heat shock proteins.
Abstract
Small heat shock proteins (sHsps) are an important part of the cellular system maintaining protein homeostasis under physiological and stress conditions. As molecular chaperones, they form complexes with different non-native proteins in an ATP-independent manner. Many sHsps populate ensembles of energetically similar but different-sized oligomers. Regulation of chaperone activity occurs by changing the equilibrium of these ensembles. This makes sHsps a versatile and adaptive system for trapping non-native proteins in complexes, allowing recycling with the help of ATP-dependent chaperones. In this review, we discuss progress in our understanding of the structural principles of sHsp oligomers and their functional principles, as well as their roles in aging and eye lens transparency.
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Research summary
The paper discusses small heat shock proteins (sHsps) and their role in maintaining protein homeostasis, which is relevant to aging as it touches on mechanisms that could influence cellular health and longevity. However, the focus is primarily on structural principles and functional roles rather than directly addressing root causes of aging or lifespan extension. The impact is rated as a 3 due to its solid research contributions but limited implications for advancing the field of longevity research significantly.
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