Results 51 to 60 of about 76,539 (287)

Molecular and cellular dynamics of the 26S proteasome

open access: yesBiochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2021
In eukaryotic cells, the ubiquitin-proteasome system serves to remove proteins that are either dysfunctional or no longer needed. The 26S proteasome is a 2.5 MDa multisubunit complex comprising the 20S core particle, where degradation is executed, and one or two regulatory particles which prepare substrates for degradation.
Sakata, Eri   +2 more
openaire   +4 more sources

Substrate recognition by the 26S proteasome [PDF]

open access: yes, 2019
The 26S proteasome is a large protein complex found in all eukaryotes. It controls the degradation of a wide range of proteins in the cell, and thus it is crucial for homeostasis, regulated cell division and apoptosis.

core   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

TBP-1 (TAT BINDING PROTEIN-1) IN THE CONTROL OF CELL PROLIFERATION: FUNCTIONAL RELATIONSHIP WITH THE AKT/PKB SIGNALING PATHWAY [PDF]

open access: yes, 2011
TBP-1/Tat-Binding Protein 1 (also named Rpt-5, S6a or PSMC3) is a multifunctional protein, originally identified as a regulator of HIV-1-Tat mediated transcription.
Festa, Luisa
core   +1 more source

The microbiome in human skin aging

open access: yesFEBS Letters, EarlyView.
Age‐related skin changes encompass the well‐known visible phenotypic alterations, together with microbiome dysbiosis and a series of molecular aging hallmarks. These hallmarks characterize not only a fully stablished aged phenotype but also the skin aging process itself.
Manuel Huerta Arana   +3 more
wiley   +1 more source

Transcriptional profiling of circulating extracellular vesicles from prebiopsy prostate cancer patients

open access: yesMolecular Oncology, EarlyView.
RNA profiling of circulating extracellular vesicles (EVs) from blood samples of men undergoing prostate biopsy identifies transcripts associated with clinically significant prostate cancer. Integrative analysis with public tumor datasets links EV‐derived gene signatures to tumor stage and progression‐free survival, highlighting CASP3, XRCC2, and RIT1 ...
Stefan Werner   +14 more
wiley   +1 more source

Structural mechanism for nucleotide-driven remodeling of the AAA-ATPase unfoldase in the activated human 26S proteasome

open access: yesNature Communications, 2018
The 26S proteasome consists of a core particle that is capped at each side by a regulatory particle. Here the authors present cryo-EM structures of the activated human 26S proteasome holoenzyme in three alternative open-gate states, which provides ...
Yanan Zhu   +5 more
doaj   +1 more source

Compensatory role of the Nrf2–ARE pathway against paraquat toxicity: Relevance of 26S proteasome activity

open access: yesJournal of Pharmacological Sciences, 2015
Oxidative stress and the ubiquitin–proteasome system play a key role in the pathogenesis of Parkinson disease. Although the herbicide paraquat is an environmental factor that is involved in the etiology of Parkinson disease, the role of 26S proteasome in
Yasuhiko Izumi   +6 more
doaj   +1 more source

The Cardiac 26S Proteasome [PDF]

open access: yesCirculation Research, 2006
See related articles, pages 362–371 and 372–380 The ubiquitin–proteasome system (UPS) is the main pathway for the nonlysosomal degradation of intracellular proteins, representing upwards of 80% of all intracellular proteins. A key component of the UPS is the 26S proteasome, a macromolecular multisubunit complex that has the responsibility of ...
openaire   +1 more source

USP29‐regulated noncanonical stabilization of the hypoxia‐inducible factor‐α in aggressive prostate cancer

open access: yesMolecular Oncology, EarlyView.
We identify USP29 as the only DUB mirroring CA9 expression, a marker of hypoxia and HIF pathway activation associated with PCA aggressiveness. USP29 stabilizes HIF‐1α and HIF‐2α via a noncanonical mechanism that is independent of PHD/pVHL activity yet relies on proteasomal regulation, establishing USP29 as a previously unrecognized regulator of hypoxic
Amelie S Schober   +16 more
wiley   +1 more source

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