Results 31 to 40 of about 411,261 (379)
The proteasome cap RPT5/Rpt5p subunit prevents aggregation of unfolded ricin A chain [PDF]
The plant cytotoxin ricin enters mammalian cells by receptor-mediated endocytosis, undergoing retrograde transport to the endoplasmic reticulum (ER) where its catalytic A chain (RTA) is reductively separated from the holotoxin to enter the cytosol and ...
Afshar +61 more
core +2 more sources
Specific lid-base contacts in the 26s proteasome control the conformational switching required for substrate degradation. [PDF]
The 26S proteasome is essential for proteostasis and the regulation of vital processes through ATP-dependent degradation of ubiquitinated substrates. To accomplish the multi-step degradation process, the proteasomes regulatory particle, consisting of lid
Aufderheide +42 more
core +1 more source
The proteasome is a multi-catalytic molecular machine that plays a key role in the degradation of many cytoplasmic and nuclear proteins. The proteasome is essential and proteasome malfunction is associated with various disease pathologies.
Sabine Schipper-Krom +6 more
doaj +1 more source
Ubiquitin-proteasome mediated protein degradation has been widely implicated in fear memory formation in the amygdala. However, to date, the protein targets of the proteasome remain largely unknown, limiting our understanding of the functional ...
Kayla Farrell +8 more
doaj +1 more source
A Practical Review of Proteasome Pharmacology
The ubiquitin proteasome system (UPS) degrades individual proteins in a highly regulated fashion and is responsible for the degradation of misfolded, damaged, or unneeded cellular proteins.
Tiffany A Thibaudeau, David M. Smith
semanticscholar +1 more source
The degradation of p53 and its major E3 ligase Mdm2 is differentially dependent on the proteasomal ubiquitin receptor S5a. [PDF]
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
Proteasome beta-4 subunit contributes to the development of melanoma and is regulated by miR-148b
The proteasome beta-4 subunit is required for the assembly of 20S proteasome complex, forming a pivotal component for the ubiquitin–proteasome system. Emerging evidence indicates that proteasome beta-4 subunit may be involved in underlying progression ...
Xiaodong Zhang +7 more
doaj +1 more source
The ubiquitin–proteasome system (UPS) and autophagy are two distinct and interacting proteolytic systems. They play critical roles in cell survival under normal conditions and during stress.
Wei Jing Liu +7 more
semanticscholar +1 more source
Regulation of the neuronal proteasome by Zif268 (Egr1) [PDF]
Most forms of neuronal plasticity are associated with induction of the transcription factor Zif268 (Egr1/Krox24/NGF-IA). In a genomewide scan, we obtained evidence for potential modulation of proteasome subunit and regulatory genes by Zif268 in neurons,
Conway, A.M., James, A.B., Morris, B.J.
core +2 more sources
Proteasome activity and subunit composition in endometrial hyperplasia and cancer
In endometrial hyperplasia the total proteasome activity was not changed however the 26S proteasome activity was increased in comparison with the normal tissues.
L. V. Spirina +6 more
doaj +1 more source

