Results 131 to 140 of about 62,588 (334)

TOGR3, a Proteasome β4 Subunit, Orchestrates Sugar Homeostasis to Trade Off Growth and Thermotolerance in Rice

Advanced Science, EarlyView.
This study identifies a novel thermoregulatory mechanism in rice: TOGR3 partners with 26S proteasome subunits, including TT1, to drive thermoresponsive ubiquitin–proteasome activity, maintaining sugar homeostasis in stomatal regulation to balance growth and stress resistance.
Biyao Zhang, Xiaoyan Wu, Ting Xu, Feifei Guo, Xiaolu Shen, Cuiping Meng, Yanan Wang, Xue Han, Hong Zhao, Yongbiao Xue   +9 more
wiley   +1 more source

Enhanced ER proteostasis and temperature differentially impact the mutational tolerance of influenza hemagglutinin

eLife, 2018
We systematically and quantitatively evaluate whether endoplasmic reticulum (ER) proteostasis factors impact the mutational tolerance of secretory pathway proteins.
Angela M Phillips, Michael B Doud, Luna O Gonzalez, Vincent L Butty, Yu-Shan Lin, Jesse D Bloom, Matthew D Shoulders   +6 more
doaj   +1 more source

Proteostasis in thermogenesis and obesity

Biological Chemistry, 2020
AbstractThe proper production, degradation, folding and activity of proteins, proteostasis, is essential for any cellular function. From single cell organisms to humans, selective pressures have led to the evolution of adaptive programs that ensure proteins are properly produced and disposed of when necessary. Environmental factors such as temperature,
Bartelt, A., Widenmaier, S.B.
openaire   +4 more sources

F‐Box and Leucine‐Rich Repeat Protein 4 (FBXL4) Maintains Sarcomere Integrity and Cardiac Function by Enhancing K48‐Linked Ubiquitinated Degradation of Profilin‐1 (PFN1)

Advanced Science, EarlyView.
Schematic diagram depicting the proposed signaling mechanisms underlying the effects of FBXL4 in the setting of cardiac hypertrophy. Under hypertrophic stimulation, cardiomyocytes‐specific overexpression FBXL4 maintains sarcomere integrity and cardiac function by enhancing K48‐linked ubiquitinated degradation of PFN1 at the K70 site.
Xingda Li, Xueqi He, Xinyuan Hao, Yu Zhang, Xin Zhao, Shuang Wang, Zhenru Wang, Haonan Du, Hongda Li, Lian Yi, Zhimin Du, Weijie Du   +11 more
wiley   +1 more source

The Nuclear Lamina: Protein Accumulation and Disease

Biomedicines, 2020
Cellular health is reliant on proteostasis—the maintenance of protein levels regulated through multiple pathways modulating protein synthesis, degradation and clearance. Loss of proteostasis results in serious disease and is associated with aging.
Carla Almendáriz-Palacios, Zoe E. Gillespie, Matthew Janzen, Valeria Martinez, Joanna M. Bridger, Troy A. A. Harkness, Darrell D. Mousseau, Christopher H. Eskiw   +7 more
doaj   +1 more source

Regulation of cell-­nonautonomous proteostasis in metazoans [PDF]

, 2016
Cells have developed robust adaptation mechanisms to survive environmental conditions that challenge the integrity of their proteome and ensure cellular viability.
O'Brien, D, Van Oosten-Hawle, PC
core   +1 more source

Proteostasis, oxidative stress and aging

Redox Biology, 2017
The production of reactive species is an inevitable by-product of metabolism and thus, life itself. Since reactive species are able to damage cellular structures, especially proteins, as the most abundant macromolecule of mammalian cells, systems are necessary which regulate and preserve a functional cellular protein pool, in a process termed ...
Ioanna Korovila, Martín Hugo, José Pedro Castro, Daniela Weber, Annika Höhn, Tilman Grune, Tobias Jung   +6 more
openaire   +3 more sources

Single‐Cell Atlas of Subchondral Bone Marrow Lesions Reveals Proteostasis Dysfunction as a Druggable Mechanism for Early Osteoarthritis

Advanced Science, EarlyView.
This study reveals that abnormal mechanical stress downregulates the expression of HSP70 and impairs proteasome function in osteoarthritic bone cells, leading to misfolded collagen I accumulation and ER stress. When intracellular proteostasis capacity is exceeded, USP19 mediates the secretion of misfolded proteins into the extracellular space ...
Hailun Xu, Ting He, Yu Qian, Jia Li, Bowei Ni, Xiaojie Xu, Huanbo Wang, Peng Wang, Guoqing Cao, Siqi Ying, Guangyu Ding, Rong Wang, Zenghui Gu, Wei Li, Zhentao Man, Houfeng Zheng, Zhaohua Zhu, Zhen Li, Qingjun Meng, Chao Zheng, Liu Yang   +20 more
wiley   +1 more source

Lipid-polymer nanoparticles to probe the native-like environment of intramembrane rhomboid protease GlpG and its activity

Nature Communications
Polymers can facilitate detergent-free extraction of membrane proteins into nanodiscs (e.g., SMALPs, DIBMALPs), incorporating both integral membrane proteins as well as co-extracted native membrane lipids.
Henry Sawczyc, Takashi Tatsuta, Carl Öster, Spyridon Kosteletos, Sascha Lange, Claudia Bohg, Thomas Langer, Adam Lange   +7 more
doaj   +1 more source

Impairment of lipid homeostasis causes lysosomal accumulation of endogenous protein aggregates through ESCRT disruption

eLife
Protein aggregation increases during aging and is a pathological hallmark of many age-related diseases. Protein homeostasis (proteostasis) depends on a core network of factors directly influencing protein production, folding, trafficking, and degradation.
John Yong, Jacqueline E Villalta, Ngoc Vu, Matthew A Kukurugya, Niclas Olsson, Magdalena Preciado López, Julia R Lazzari-Dean, Kayley Hake, Fiona E McAllister, Bryson D Bennett, Calvin H Jan   +10 more
doaj   +1 more source