Results 81 to 90 of about 596,162 (342)

ALIX binds a YPX(3)L motif of the GPCR PAR1 and mediates ubiquitin-independent ESCRT-III/MVB sorting. [PDF]

, 2012
The sorting of signaling receptors to lysosomes is an essential regulatory process in mammalian cells. During degradation, receptors are modified with ubiquitin and sorted by endosomal sorting complex required for transport (ESCRT)-0, -I, -II, and -III ...
Chen, Buxin, Dores, Michael R, Lin, Huilan, Meerloo, Timo, Montagne, William A, Paing, May M, Soh, Unice JK, Trejo, JoAnn   +7 more
core   +3 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

The Roles of Ubiquitin in Mediating Autophagy

Cells, 2020
Ubiquitination, the post-translational modification essential for various intracellular processes, is implicated in multiple aspects of autophagy, the major lysosome/vacuole-dependent degradation pathway.
Zhangyuan Yin, Hana Popelka, Yuchen Lei, Ying Yang, Daniel J. Klionsky   +4 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Selective ubiquitination of drug-like small molecules by the ubiquitin ligase HUWE1

Nature Communications
The ubiquitin system regulates eukaryotic physiology by modifying myriad substrate proteins. Substrate specificity and the assembly of ubiquitin signals are determined by ubiquitin ligases, some of which also modify non-protein biomolecules.
Barbara Orth, Pavel Pohl, Florian Aust, Yanlong Ji, Ayshwarya Seenivasan, Olexandr Dybkov, Xiaojun Julia Liang, Lars Bock, Florian Leidner, Sophie Levantovsky, Patrick Schardey, Pascal Sander, Nathanael J. Disch, Masanja L. Trautz, Athanasia Mizi, Argyris Papantonis, Christof Lenz, Helmut Grubmüller, Wieland Steinchen, Christian Behrends, Henning Urlaub, Matthias Gehringer, Sonja Lorenz   +22 more
doaj   +1 more source

The role of binding site on the mechanical unfolding mechanism of ubiquitin. [PDF]

, 2015
We apply novel atomistic simulations based on potential energy surface exploration to investigate the constant force-induced unfolding of ubiquitin. At the experimentally-studied force clamping level of 100 pN, we find a new unfolding mechanism starting ...
Cao, Penghui, Eom, Kilho, Park, Harold S, Tao, Weiwei, Yoon, Gwonchan   +4 more
core   +1 more source

The ubiquitin ligase RNF115 is required for the clearance of damaged lysosomes

FEBS Letters, EarlyView.
Upon lysosomal rupture, an E3 ubiquitin ligase RNF115 translocates from the cytosol to the damaged lysosomal membrane. Moreover, RNF115 depletion impairs the clearance of damaged lysosomes, identifying it as a key regulator of lysosomal quality control.
Sae Nakanaga, Toshiki Takahashi, Akiko Kuma, Hiroyuki Kawahara   +3 more
wiley   +1 more source

IAPs as E3 ligases of Rac1 : shaping the move [PDF]

, 2012
Inhibitors of Apoptosis Proteins (IAPs) are well-studied E3 ubiquitin ligases predominantly known for regulation of apoptosis. We uncovered that IAPs can function as a direct E3 ubiquitin ligase of RhoGTPase Rac1.
Oberoi-Khanuja, Tripat Kaur, Rajalingam, Krishnaraj   +1 more
core   +1 more source

Uncovering Ubiquitin and Ubiquitin-like Signaling Networks

Chemical Reviews, 2011
Proteomes are significantly more complex than genomes and transcriptomes due to protein processing and extensive post-translational modification (PTM) of proteins. Hundreds of different modifications exist. Release 66 of the RESID database(1) (http://www.ebi.ac.uk/RESID/) contains 559 different modifications, including small chemical modifications such
openaire   +3 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source