Results 21 to 30 of about 574,104 (383)

Targeting the Ubiquitin System in Glioblastoma

open access: yesFrontiers in Oncology, 2020
Glioblastoma is the most common primary brain tumor in adults with poor overall outcome and 5-year survival of less than 5%. Treatment has not changed much in the last decade or so, with surgical resection and radio/chemotherapy being the main options ...
Nico Scholz   +3 more
doaj   +1 more source

Dynamic regulation of dynein localization revealed by small molecule inhibitors of ubiquitination enzymes [PDF]

open access: yesOpen Biology, 2018
Cytoplasmic dynein is a minus-end-directed microtubule-based motor that acts at diverse subcellular sites. During mitosis, dynein localizes simultaneously to the mitotic spindle, spindle poles, kinetochores and the cell cortex.
Julie K. Monda, Iain M. Cheeseman
doaj   +1 more source

Cyclin F drives proliferation through SCF-dependent degradation of the retinoblastoma-like tumor suppressor p130/RBL2

open access: yeseLife, 2021
Cell cycle gene expression programs fuel proliferation and are universally dysregulated in cancer. The retinoblastoma (RB)-family of proteins, RB1, RBL1/p107, and RBL2/p130, coordinately represses cell cycle gene expression, inhibiting proliferation, and
Taylor P Enrico   +8 more
doaj   +1 more source

A Conditional Yeast E1 Mutant Blocks the Ubiquitin–Proteasome Pathway and Reveals a Role for Ubiquitin Conjugates in Targeting Rad23 to the Proteasome [PDF]

open access: yes, 2007
E1 ubiquitin activating enzyme catalyzes the initial step in all ubiquitin-dependent processes. We report the isolation of uba1-204, a temperature-sensitive allele of the essential Saccharomyces cerevisiae E1 gene, UBA1.
Amerik A. Y.   +59 more
core   +2 more sources

Regulation of ubiquitin and ubiquitin‐like modifiers by phosphorylation [PDF]

open access: yesThe FEBS Journal, 2021
The regulatory influence of ubiquitin is vast, encompassing all cellular processes, by virtue of its central roles in protein degradation, membrane trafficking, and cell signaling. But how does ubiquitin, a 76 amino acid peptide, carry out such diverse, complex functions in eukaryotic cells? Part of the answer is rooted in the high degree of complexity
Nathaniel L. Hepowit   +4 more
openaire   +3 more sources

Reconstitution defines the roles of p62, NBR1 and TAX1BP1 in ubiquitin condensate formation and autophagy initiation

open access: yesNature Communications, 2021
The autophagic degradation of misfolded and ubiquitinated proteins is important for cellular homeostasis. In this process, which is governed by cargo receptors, ubiquitinated proteins are condensed into larger structures and subsequently become targets ...
E. Turco   +6 more
semanticscholar   +1 more source

Mechanically transduced immunosorbent assay to measure protein-protein interactions

open access: yeseLife, 2021
Measuring protein-protein interaction (PPI) affinities is fundamental to biochemistry. Yet, conventional methods rely upon the law of mass action and cannot measure many PPIs due to a scarcity of reagents and limitations in the measurable affinity ranges.
Christopher J Petell   +6 more
doaj   +1 more source

Dss1 is a 26S proteasome ubiquitin receptor [PDF]

open access: yes, 2014
The ubiquitin-proteasome system is the major pathway for protein degradation in eukaryotic cells. Proteins to be degraded are conjugated to ubiquitin chains that act as recognition signals for the 26S proteasome.
Arrigoni   +35 more
core   +4 more sources

The Ubiquitination Machinery of the Ubiquitin System [PDF]

open access: yesThe Arabidopsis Book, 2014
The protein ubiquitin is a covalent modifier of proteins, including itself. The ubiquitin system encompasses the enzymes required for catalysing attachment of ubiquitin to substrates as well as proteins that bind to ubiquitinated proteins leading them to their final fate.
openaire   +5 more sources

Sugar-Recognizing Ubiquitin Ligases: Action Mechanisms and Physiology

open access: yesFrontiers in Physiology, 2019
F-box proteins, the substrate recognition subunits of SKP1–CUL1–F-box protein (SCF) E3 ubiquitin ligase complexes, play crucial roles in various cellular events mediated by ubiquitination.
Yukiko Yoshida   +2 more
doaj   +1 more source

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