Results 51 to 60 of about 195,005 (265)

Early recovery of proteasome activity in cells pulse-treated with proteasome inhibitors is independent of DDI2

open access: yeseLife
Rapid recovery of proteasome activity may contribute to intrinsic and acquired resistance to FDA-approved proteasome inhibitors. Previous studies have demonstrated that the expression of proteasome genes in cells treated with sub-lethal concentrations of
Ibtisam Ibtisam, Alexei F Kisselev
doaj   +1 more source

Mutant p53–Nrf2 axis regulates the proteasome machinery in cancer

open access: yesMolecular & Cellular Oncology, 2017
The proteasome machinery is a common target of gain-of-function p53 missense mutants. Upregulation of the proteasome fosters chemoresistance to proteasome inhibitors.
Kamil Lisek   +2 more
doaj   +1 more source

Ubiquitination of Intramitochondrial Proteins: Implications for Metabolic Adaptability

open access: yesBiomolecules, 2020
Mitochondria are constantly subjected to stressful conditions due to their unique physiology and organization. The resulting damage leads to mitochondrial dysfunction, which underlies many pathophysiological conditions.
Prasad Sulkshane   +2 more
doaj   +1 more source

Proteasome plasticity

open access: yesFEBS Letters, 2005
The 26S proteasome is responsible for regulated proteolysis of most intracellular proteins yet the focus of intense regulatory action itself. Proteasome abundance is responsive to cell needs or stress conditions, and dynamically localized to concentrations of substrates. Proteasomes are continually assembled and disassembled, and their subunits subject
Glickman, Michael H., Raveh, Dina
openaire   +2 more sources

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

The DYT6 dystonia causative protein THAP1 is responsible for proteasome activity via PSMB5 transcriptional regulation

open access: yesNature Communications
The proteasome plays a pivotal role in protein degradation, and its impairment is associated with various pathological conditions, including neurodegenerative diseases.
Yan Wang   +14 more
doaj   +1 more source

The E3 ubiquitin ligase STUB1 regulates autophagy and mitochondrial biogenesis by modulating TFEB activity

open access: yesMolecular & Cellular Oncology, 2017
TFEB is a master regulator for transcription of genes involved in autophagy, lysosome and mitochondrial biogenesis. Activity of TFEB is inhibited upon its phosphorylation.
Lang Rao, Youbao Sha, N. Tony Eissa
doaj   +1 more source

Polyamines directly promote antizyme-mediated degradation of ornithine decarboxylase by the proteasome

open access: yesMicrobial Cell, 2015
Ornithine decarboxylase (ODC), a ubiquitin-independent substrate of the proteasome, is a homodimeric protein with a rate-limiting function in polyamine biosynthesis.
R. Roshini Beenukumar   +3 more
doaj   +1 more source

Meta‐analysis fails to show any correlation between protein abundance and ubiquitination changes

open access: yesFEBS Open Bio, EarlyView.
We analyzed over 50 published proteomics datasets to explore the relationship between protein levels and ubiquitination changes across multiple experimental conditions and biological systems. Although ubiquitination is often associated with protein degradation, our analysis shows that changes in ubiquitination do not globally correlate with changes in ...
Nerea Osinalde   +3 more
wiley   +1 more source

Proteasomes on the chromosome [PDF]

open access: yesCell Research, 2017
Targeted proteolysis plays an important role in the execution and regulation of many cellular events. Two recent papers in Science identify novel roles for proteasome-mediated proteolysis in homologous chromosome pairing, recombination, and segregation during meiosis.
openaire   +2 more sources

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