Results 41 to 50 of about 27,539 (236)

The degradation of p53 and its major E3 ligase Mdm2 is differentially dependent on the proteasomal ubiquitin receptor S5a. [PDF]

open access: yes, 2013
p53 and its major E3 ligase Mdm2 are both ubiquitinated and targeted to the proteasome for degradation. Despite the importance of this in regulating the p53 pathway, little is known about the mechanisms of proteasomal recognition of ubiquitinated p53 and
A Arlt   +93 more
core   +3 more sources

A method for assaying deubiquitinating enzymes [PDF]

open access: yesBiological Procedures Online, 1998
A general method for the assay of deubiquitinating enzymes was described in detail using (125)I-labeled ubiquitin-fused alphaNH-MHISPPEPESEEEEEHYC (referred to as Ub-PESTc) as a substrate. Since the tyrosine residue in the PESTc portion of the fusion protein was almost exclusively radioiodinated under a mild labeling condition, such as using IODO-BEADS,
Lee Jae Il   +6 more
openaire   +3 more sources

Epigenetics disruptions enabled by porphyrin-derived metal-organic frameworks disarm resistances to sonocatalytic ROS anti-tumor actions

open access: yesFundamental Research
Post-transcriptional epigenetic modifications provide numerous implications for tumor progression, metastasis and recurrence, which also pose resistances to reactive oxygen species (ROS)-based anti-tumor.
Yan Zhang   +12 more
doaj   +1 more source

Deubiquitination complex platform: A plausible mechanism for regulating the substrate specificity of deubiquitinating enzymes

open access: yesActa Pharmaceutica Sinica B, 2023
Deubiquitinating enzymes (DUBs) or deubiquitinases facilitate the escape of multiple proteins from ubiquitin‒proteasome degradation and are critical for regulating protein expression levels in vivo. Therefore, dissecting the underlying mechanism of DUB recognition is needed to advance the development of drugs related to DUB signaling pathways. To data,
Yi-Zheng Fang   +4 more
openaire   +3 more sources

USP37 Promotes Lung Cancer Cell Migration by Stabilizing Snail Protein via Deubiquitination

open access: yesFrontiers in Genetics, 2020
Snail is a prominent epithelial–mesenchymal transition (EMT) transcription factor and promotes metastasis. However, Snail protein is unstable and is quickly degraded through ubiquitination-mediated proteasome pathway.
Jiali Cai   +10 more
doaj   +1 more source

OTU7B Modulates the Mosquito Immune Response to Beauveria bassiana Infection via Deubiquitination of the Toll Adaptor TRAF4

open access: yesMicrobiology Spectrum, 2023
The Aedes aegypti mosquito transmits devastating flaviviruses, such as Zika, dengue, and yellow fever viruses. For more effective control of the vector, the pathogenicity of Beauveria bassiana, a fungus commonly used for biological control of pest ...
Yanhong Wang   +6 more
doaj   +1 more source

A Conditional Yeast E1 Mutant Blocks the Ubiquitin–Proteasome Pathway and Reveals a Role for Ubiquitin Conjugates in Targeting Rad23 to the Proteasome [PDF]

open access: yes, 2007
E1 ubiquitin activating enzyme catalyzes the initial step in all ubiquitin-dependent processes. We report the isolation of uba1-204, a temperature-sensitive allele of the essential Saccharomyces cerevisiae E1 gene, UBA1.
Amerik A. Y.   +59 more
core   +2 more sources

Mechanisms for regulating deubiquitinating enzymes [PDF]

open access: yesProtein Science, 2014
AbstractUbiquitination is a reversible post‐translational modification that plays a dynamic role in regulating most eukaryotic processes. Deubiquitinating enzymes (DUBs), which hydrolyze the isopeptide or peptide linkages joining ubiquitin to substrate lysines or N‐termini, therefore play a key role in ubiquitin signaling.
openaire   +2 more sources

Accelerating inhibitor discovery for deubiquitinating enzymes

open access: yesNature Communications, 2023
AbstractDeubiquitinating enzymes (DUBs) are an emerging drug target class of ~100 proteases that cleave ubiquitin from protein substrates to regulate many cellular processes. A lack of selective chemical probes impedes pharmacologic interrogation of this important gene family. DUBs engage their cognate ligands through a myriad of interactions.
Wai Cheung Chan   +19 more
openaire   +3 more sources

IKKα negatively regulates ASC-dependent inflammasome activation. [PDF]

open access: yes, 2014
The inflammasomes are multiprotein complexes that activate caspase-1 in response to infections and stress, resulting in the secretion of pro-inflammatory cytokines.
Alnemri, Emad S   +19 more
core   +1 more source

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