Results 41 to 50 of about 187,561 (340)

Ubiquitin in Motion: Structural Studies of the Ubiquitin-Conjugating Enzyme∼Ubiquitin Conjugate [PDF]

open access: yesBiochemistry, 2011
Ubiquitination of proteins provides a powerful and versatile post-translational signal in the eukaryotic cell. The formation of a thioester bond between ubiquitin (Ub) and the active site of a ubiquitin-conjugating enzyme (E2) is critical for the transfer of Ub to substrates. Assembly of a functional ubiquitin ligase (E3) complex poised for Ub transfer
Rachel E. Klevit   +4 more
openaire   +3 more sources

Histone Mono-Ubiquitination in Transcriptional Regulation and Its Mark on Life: Emerging Roles in Tissue Development and Disease

open access: yesCells, 2022
Epigenetic regulation plays an essential role in driving precise transcriptional programs during development and homeostasis. Among epigenetic mechanisms, histone mono-ubiquitination has emerged as an important post-transcriptional modification.
Liat Oss-Ronen, Tzlil Sarusi, Idan Cohen
doaj   +1 more source

Non-degradative Ubiquitination of Protein Kinases. [PDF]

open access: yesPLoS Computational Biology, 2016
Growing evidence supports other regulatory roles for protein ubiquitination in addition to serving as a tag for proteasomal degradation. In contrast to other common post-translational modifications, such as phosphorylation, little is known about how non ...
K Aurelia Ball   +6 more
doaj   +1 more source

HIV Nef-mediated Ubiquitination of BCL2: Implications in Autophagy and Apoptosis

open access: yesFrontiers in Immunology, 2021
Ubiquitination is a process that acts upon every step of the HIV replication cycle. The activity, subcellular localization, and stability of HIV dependency factors as well as negative modulators can be affected by ubiquitination.
Sergio Castro-Gonzalez   +5 more
doaj   +1 more source

Ubiquitination of GPCRs [PDF]

open access: yes, 2011
In this chapter, we describe a method for detecting the ubiquitination status of G protein-coupled receptors (GPCRs). This involves co-expression of a GPCR with an epitope-tagged ubiquitin construct in a -heterologous mammalian expression system. Stimulus-dependent modification of the GPCR by -ubiquitin is detected by immunoprecipitation and subsequent
Adriano Marchese, Adriana Caballero
openaire   +3 more sources

SKP2 attenuates autophagy through Beclin1-ubiquitination and its inhibition reduces MERS-Coronavirus infection

open access: yesNature Communications, 2019
Autophagy is an essential cellular process affecting virus infections and other diseases and Beclin1 (BECN1) is one of its key regulators. Here, we identified S-phase kinase-associated protein 2 (SKP2) as E3 ligase that executes lysine-48-linked poly ...
N. Gassen   +18 more
semanticscholar   +1 more source

Sequential ubiquitination of NLRP3 by RNF125 and Cbl-b limits inflammasome activation and endotoxemia

open access: yesJournal of Experimental Medicine, 2020
Hyper-activation of NLRP3 inflammasomes contributes to the development of endotoxemia, but the molecular mechanisms are poorly defined. Tang et al. demonstrate that sequential ubiquitination of NLRP3 is crucial to keep NLRP3 inflammasomes in check and ...
Juan Tang   +21 more
semanticscholar   +1 more source

Mastermind-Like 1 Is Ubiquitinated: Functional Consequences for Notch Signaling. [PDF]

open access: yesPLoS ONE, 2015
Early studies demonstrated the involvement of ubiquitination of the Notch intracellular domain for rapid turnover of the transcriptional complex at Notch target genes. It was shown that this ubiquitination was promoted by the co-activator Mastermind like
Mozhgan Farshbaf   +7 more
doaj   +1 more source

Ubiquitin System [PDF]

open access: yesInternational Journal of Molecular Sciences, 2018
Ever since the discovery of ubiquitin in 1975[...]
openaire   +2 more sources

The roles of protein ubiquitination in tumorigenesis and targeted drug discovery in lung cancer

open access: yesFrontiers in Endocrinology, 2023
The malignant lung cancer has a high morbidity rate and very poor 5-year survival rate. About 80% - 90% of protein degradation in human cells is occurred through the ubiquitination enzyme pathway.
Zhen Ye   +4 more
doaj   +1 more source

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