Results 61 to 70 of about 393,592 (390)

The ubiquitin-proteasome system in plant responses to environments.

open access: yesPlant, Cell and Environment, 2019
The ubiquitin-proteasome system (UPS) is a rapid regulatory mechanism for selective protein degradation in plants and plays crucial roles in growth and development. There is increasing evidence that the UPS is also an integral part of plant adaptation to
Fa-Qing Xu, Hong-Wei Xue
semanticscholar   +1 more source

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   +2 more sources

Enhanced O-GlcNAcylation Mediates Cytoprotection under Proteasome Impairment by Promoting Proteasome Turnover in Cancer Cells

open access: yesiScience, 2020
Summary: The proteasome is a therapeutic target in cancer, but resistance to proteasome inhibitors often develops owing to the induction of compensatory pathways.
Eiichi Hashimoto   +7 more
doaj  

An archaeal homolog of proteasome assembly factor functions as a proteasome activator. [PDF]

open access: yesPLoS ONE, 2013
Assembly of the eukaryotic 20S proteasome is an ordered process involving several proteins operating as proteasome assembly factors including PAC1-PAC2 but archaeal 20S proteasome subunits can spontaneously assemble into an active cylindrical ...
Kentaro Kumoi   +9 more
doaj   +1 more source

The proteasome cap RPT5/Rpt5p subunit prevents aggregation of unfolded ricin A chain [PDF]

open access: yes, 2013
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

Social context prevents heat hormetic effects against mutagens during fish development

open access: yesFEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere   +5 more
wiley   +1 more source

Artemisinin kills malaria parasites by damaging proteins and inhibiting the proteasome

open access: yesNature Communications, 2018
Artemisinin and its derivatives (collectively referred to as ARTs) rapidly reduce the parasite burden in Plasmodium falciparum infections, and antimalarial control is highly dependent on ART combination therapies (ACTs).
Jessica L. Bridgford   +11 more
semanticscholar   +1 more source

Downhill exercise alters immunoproteasome content in mouse skeletal muscle [PDF]

open access: yes, 2017
Content of the immunoproteasome, the inducible form of the standard proteasome, increases in atrophic muscle suggesting it may be associated with skeletal muscle remodeling.
Baumann, Cory W.   +3 more
core   +1 more source

Autophagy in cancer and protein conformational disorders

open access: yesFEBS Letters, EarlyView.
Autophagy plays a crucial role in numerous biological processes, including protein and organelle quality control, development, immunity, and metabolism. Hence, dysregulation or mutations in autophagy‐related genes have been implicated in a wide range of human diseases.
Sergio Attanasio
wiley   +1 more source

Pharmacological strategies in lung cancer-induced cachexia: effects on muscle proteolysis, autophagy, structure, and weakness [PDF]

open access: yes, 2014
Muscle wasting and cachexia are important systemic manifestations of highly prevalent conditions including cancer. Inflammation, oxidative stress, autophagy, ubiquitin-proteasome system, nuclear factor (NF)-kB, and mitogen activated protein kinases (MAPK)
Bal, Elisa Dora   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy