Results 131 to 140 of about 617,710 (283)

Intratumoral Hypoxia Triggers Mitochondrial BHLHE40 ROS Sensing Pathway to Promote Radioresistance in Triple‐Negative Breast Cancer

open access: yesAdvanced Science, EarlyView.
Hypoxia triggers a dual mechanism for BHLHE40 upregulation: reactive oxygen species (ROS)‐dependent post‐translational modification and hypoxia‐inducible factor (HIF)‐dependent transcriptional activation. Under hypoxic conditions, mitochondrial BHLHE40 accumulates and senses ROS via cysteine thiol oxidation and disulfide‐linked homodimer formation ...
Jia Liu   +13 more
wiley   +1 more source

Mutations of Rad6 E2 ubiquitin-conjugating enzymes at alanine-126 in helix-3 affect ubiquitination activity and decrease enzyme stability. [PDF]

open access: yesJ Biol Chem, 2022
Shukla PK   +9 more
europepmc   +1 more source

Ubiquitin-conjugating enzymes UBC4 and UBC5 mediate selective degradation of short-lived and abnormal proteins

open access: yes, 1990
Ubiquitin-conjugating enzymes catalyse the covalent attachment of ubiquitin to target proteins. Members of this enzyme family are involved in strikingly diverse cellular functions: UBC2 (RAD6) is central to DNA repair, UBC3 (CDC34) is involved in cell ...
Jentsch, S., Seufert, W.
core   +1 more source

UFL1‐Mediated UFMylation of ENO1 Restrains Aerobic Glycolysis and Colorectal Cancer Progression

open access: yesAdvanced Science, EarlyView.
UFMylation restrains aerobic glycolysis and colorectal cancer progression by modifying the glycolytic enzyme ENO1. Pharmacological enhancement of the UFL1–ENO1 interaction by the FDA‐approved antibiotic torezolid promotes ENO1 UFMylation, suppresses tumor metabolism, and sensitizes colorectal cancer to chemotherapy, revealing an actionable metabolic ...
Xiuqing Ma   +14 more
wiley   +1 more source

Interactions between the quality control ubiquitin ligase CHIP and ubiquitin conjugating enzymes-4

open access: yes, 2011
Stern blotting. Anti-ubiquitin staining confirms the formation of polyubiquitin chains. Anti-CHIP staining shows that a fraction of CHIP is modified by mono- and polyubiquitin, migrating as higher-molecular weight bands. .
Zhen Xu (92379)   +5 more
core   +1 more source

Targeting Tex10 Overcomes Oxaliplatin Resistance by Competitively Disrupting the Non‐Canonical BAF Complex in Colorectal Cancer

open access: yesAdvanced Science, EarlyView.
This study reveals that Tex10 drives oxaliplatin resistance in colorectal cancer by competitively binding BRD9 to disrupt the ncBAF complex, thereby suppressing AMBRA1 transcription and ULK1‐mediated autophagy. Gemcitabine is identified as a direct Tex10 inhibitor that restores autophagy and overcomes resistance.
Ping Xu   +9 more
wiley   +1 more source

SDF‐1 Attenuates Oocyte Quality Decline During Reproductive Aging Through Autophagy‐Enhanced Stress Granule Scavenging

open access: yesAdvanced Science, EarlyView.
SDF‐1 levels decline significantly with maternal aging. Exogenous supplementation restores meiotic spindle morphology, chromosomal alignment, and mitochondrial function while reducing oxidative stress in aged oocytes. Mechanistically, SDF‐1 enhances autophagic activity to clear accumulated stress granules, thereby rescuing fertilization competence and ...
Rui Long   +12 more
wiley   +1 more source

DUBs in Alzheimer’s disease: mechanisms and therapeutic implications

open access: yesCell Death Discovery
Alzheimer’s disease (AD) is a prevalent neurodegenerative disorder characterized by the accumulation of amyloid β protein (Aβ) and the hyper-phosphorylation of the microtubule-associated protein Tau.
Biying Qin   +3 more
doaj   +1 more source

Composition of ubiquitin-activating enzymes (E1), ubiquitin conjugating enzymes (E2), and ubiquitin ligases (E3) within the genomes of four model eukaryotes and six medically important arthropod vectors.

open access: yes, 2013
Using HMMER v.3.0, complete sets of proteins for all ten genomes were scanned for the presence of two Pfam domain models for ubiquitin activating enzymes (E1): ThiF (PF00899) and UBACT (PF02134); one Pfam domain model for ubiquitin conjugating enzymes ...
Joao H. F. Pedra (409726)   +5 more
core   +1 more source

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