Results 41 to 50 of about 187,561 (340)
Ubiquitin in Motion: Structural Studies of the Ubiquitin-Conjugating Enzyme∼Ubiquitin Conjugate [PDF]
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
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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]
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
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HIV Nef-mediated Ubiquitination of BCL2: Implications in Autophagy and Apoptosis
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
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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
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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
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]
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
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Ever since the discovery of ubiquitin in 1975[...]
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The roles of protein ubiquitination in tumorigenesis and targeted drug discovery in lung cancer
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
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