Results 61 to 70 of about 596,162 (342)

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   +4 more sources

The master cell cycle regulator APC-Cdc20 regulates ciliary length and disassembly of the primary cilium

open access: yeseLife, 2014
The primary cilium has an important role in signaling; defects in structure are associated with a variety of human diseases. Much of the most basic biology of this organelle is poorly understood, even basic mechanisms, such as control of growth and ...
Weiping Wang, Tao Wu, Marc W Kirschner
doaj   +1 more source

Global and context-specific transcriptional consequences of oncogenic Fbw7 mutations

open access: yeseLife, 2022
The Fbw7 ubiquitin ligase targets many proteins for proteasomal degradation, which include oncogenic transcription factors (TFs) (e.g., c-Myc, c-Jun, and Notch).
H Nayanga Thirimanne   +10 more
doaj   +1 more source

Characterization of a Dominant Negative Mutant of the Cell Cycle Ubiquitin-conjugating Enzyme Cdc34 [PDF]

open access: yes, 1995
The yeast Saccharomyces cerevisiae CDC34 gene encodes a ubiquitin-conjugating enzyme that is required for the cell cycle G(1)/S transition. We show here that a dominant negative Cdc34 protein is generated by simultaneously replacing both Cys and Leu with
Banerjee, Amit   +2 more
core   +2 more sources

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
Jonathan N, Pruneda   +4 more
openaire   +2 more sources

The ART-Rsp5 ubiquitin ligase network comprises a plasma membrane quality control system that protects yeast cells from proteotoxic stress

open access: yeseLife, 2013
Secretory cargo that cannot fold properly in the ER are selectively targeted for removal by a well-studied ER-associated degradation pathway, or ERAD.
Yingying Zhao   +3 more
doaj   +1 more source

Triad3a induces the degradation of early necrosome to limit RipK1-dependent cytokine production and necroptosis. [PDF]

open access: yes, 2018
Understanding the molecular signaling in programmed cell death is vital to a practical understanding of inflammation and immune cell function. Here we identify a previously unrecognized mechanism that functions to downregulate the necrosome, a central ...
A Degterev   +67 more
core   +2 more sources

A single vertebrate DNA virus protein disarms invertebrate immunity to RNA virus infection

open access: yeseLife, 2014
Virus-host interactions drive a remarkable diversity of immune responses and countermeasures. We found that two RNA viruses with broad host ranges, vesicular stomatitis virus (VSV) and Sindbis virus (SINV), are completely restricted in their replication ...
Don B Gammon   +16 more
doaj   +1 more source

The Drosophila F-box protein Fbxl7 binds to the protocadherin Fat and regulates Dachs localization and Hippo signaling

open access: yeseLife, 2014
The Drosophila protocadherin Fat (Ft) regulates growth, planar cell polarity (PCP) and proximodistal patterning. A key downstream component of Ft signaling is the atypical myosin Dachs (D).
Justin A Bosch   +5 more
doaj   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

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