Results 81 to 90 of about 248,818 (307)

Proteasome Composition and Activity Changes in Cultured Fibroblasts Derived From Mucopolysaccharidoses Patients and Their Modulation by Genistein

Frontiers in Cell and Developmental Biology, 2020
In this study, we have asked whether proteasome composition and function are affected in cells derived from patients suffering from all types of mucopolysaccharidosis (MPS), an inherited metabolic disease caused by accumulation of undegraded ...
Karolina Pierzynowska, Lidia Gaffke, Elżbieta Jankowska, Estera Rintz, Julia Witkowska, Ewa Wieczerzak, Magdalena Podlacha, Grzegorz Węgrzyn   +7 more
doaj   +1 more source

UDP‐Glucose‐6‐Dehydrogenase Mediated O‐GlcNAcylation of Tight Junction Protein 1 Suppresses Metastasis in Renal Cell Carcinoma

Advanced Science, EarlyView.
Our research unveiled a regulatory paradigm wherein TRIM25 orchestrates the ubiquitin‐mediated degradation of UGDH. UGDH modulates the protein stability of TJP1 by regulating O‐GlcNAcylation levels, effectively impeding the metastasis of ccRCC. Our insights elevate UGDH to a pivotal biomarker and tumor suppressor, marking the first demonstration that ...
Xiaolin Chen, Yuhang Bao, Tao Liu, Jianhui Qiu, Yuanyuan Ma, Zedan Zhang, Chuandong Wang, Ruiyi Deng, Zheng Song, Tianyi He, Haode Liu, Jingcheng Zhou, Yizhou Wang, Kan Gong   +13 more
wiley   +1 more source

Proteasomes and Ubiquitin C-Terminal Hydrolase L1 as Biomarkers of Tissue Damage and Inflammatory Response to Different Types of Injury—A Short Review

Life
The proteasomal system of protein degradation is crucial for various cellular processes, including transduction of signals and differentiation of cells.
Marzena Tylicka, Ewa Matuszczak, Joanna Kamińska, Beata Modzelewska, Olga Martyna Koper-Lenkiewicz   +4 more
doaj   +1 more source

Spt6 levels are modulated by PAAF1 and proteasome to regulate the HIV-1 LTR

Retrovirology, 2012
Background Tat-mediated activation of the HIV-1 promoter depends upon a proteasome-associated factor, PAAF1, which dissociates 26S proteasome to produce 19S RP that is essential for transcriptional elongation.
Nakamura Mirai, Basavarajaiah Poornima, Rousset Emilie, Beraud Cyprien, Latreille Daniel, Henaoui Imène-Sarah, Lassot Irina, Mari Bernard, Kiernan Rosemary   +8 more
doaj   +1 more source

Proteasome plasticity

FEBS 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

Microglial Deubiquitinase OTUD7B Stabilizes STAT3 to Promote Neuroinflammation and Cognitive Decline in Alzheimer's Disease

Advanced Science, EarlyView.
. ABSTRACT Neuroinflammation driven by microglial activation is a defining feature of Alzheimer's disease (AD), yet the molecular mechanisms sustaining this proinflammatory state remain unclear. Here, we identify the deubiquitinase OTUD7B as a critical regulator of microglial activation and AD pathology.
Luyao Li, Hao Tang, Qin Yu, Yuyang Zhang, Binglu Shi, Ying Kong, Leiyu Xu, Jingjing Shao, Chenghong Hu, Lingyu She, Zhe Wang, Haiyi Chen, Aleksandr V. Samorodov, Gang Cao, Xia Zhao, Yi Wang   +15 more
wiley   +1 more source

Ubiquitin-specific protease USP25 functions in endoplasmic reticulum-associated degradation [PDF]

, 2012
Endoplasmic Reticulum (ER)-associated degradation (ERAD) discards abnormal proteins synthesized in the ER. Through coordinated actions of ERAD components, misfolded/anomalous proteins are recognized, ubiquitinated, extracted from the ER and ultimately ...
Amanda Denuc, Marfany Gemma, Denuc Isern, Amanda, Todi, S. V., Burr, A. A., Gemma Marfany, Blount Jessica R., Sokol V Todi, Todi Sokol V., Marfany i Nadal, Gemma, Jessica R Blount, Denuc Amanda, Blount, J. R., Aaron A Burr, Burr Aaron A.   +14 more
core   +2 more sources

Interferon y Stimulation Modulates the Proteolytic Activity and Cleavage Site Preference of 20S Mouse Proteasomes [PDF]

, 1994
The proteasome is a 700-kD multisubunit enzyme complex with several proteolytically active sites. The enzyme complex is involved in both ubiquitin-dependent and -independent protein degradation and may contribute to the processing of antigens presented ...
Multhaupt, Gerd, Koszinowski, Ulrich H., Kloetzel, Peter-M., Boes, Bettina, Ruppert, Thomas, Hengel, Hartmut   +5 more
core   +1 more source

Loss of E3 Ubiquitin Ligase RINES via CpG Methylation Relieves Suppression of STAT3 and MYC, Facilitating Multiple Tumorigeneses

Advanced Science, EarlyView.
Dysregulated protein modifications drive tumorigenesis. RINES, an E3 ubiquitin ligase, represses tumor cell proliferation and metastasis by facilitating RING domain‐dependent, ubiquitin–proteasome‐mediated degradation of STAT3 and MYC, which consequently restrains cancer stemness and oncogenic progression.
Lili Li, Ka Man Ng, Xingsheng Shu, Xiaoxue Chai, Kai Yau Wong, Gopesh Srivastava, Anthony T.C. Chan, Wai Yee Chan, Qian Tao   +8 more
wiley   +1 more source

Exploring the Interactome of the Queuine Salvage Protein DUF2419 in Entamoeba histolytica

Cells
Entamoeba histolytica causes amebiasis, a significant global health issue, with millions affected annually, especially in developing countries. EhDUF2419, an important protein involved in E.
Jun Ye, Meirav Trebicz-Geffen, Serge Ankri   +2 more
doaj   +1 more source