Results 51 to 60 of about 28,838 (280)

The ROS/SUMO Axis Contributes to the Response of Acute Myeloid Leukemia Cells to Chemotherapeutic Drugs

open access: yesCell Reports, 2014
Chemotherapeutic drugs used in the treatment of acute myeloid leukemias (AMLs) are thought to induce cancer cell death through the generation of DNA double-strand breaks.
Guillaume Bossis   +15 more
doaj   +1 more source

A role for SUMO modification in transcriptional repression and activation [PDF]

open access: yes, 2007
Since the discovery of the SUMO (small ubiquitin-like modifier) family of proteins just over a decade ago, a plethora of substrates have been uncovered including many regulators of transcription.
David   +26 more
core   +1 more source

The Role of the Small Ubiquitin-Related Modifier (SUMO) Pathway in Prostate Cancer

open access: yesBiomolecules, 2012
SUMO (small ubiquitin-related modifier) conjugation is a reversible three-step process of protein post-translational modifications mediating protein-protein interactions, subcellular compartmentalization and regulation of transcriptional events.
Christos N. Papandreou   +1 more
doaj   +1 more source

Revised annotation and extended characterizations of components of the Chlamydomonas reinhardtii SUMOylation system

open access: yesPlant Direct, 2020
Small ubiquitin‐like modifier (SUMO) conjugation, or SUMOylation, is a reversible post‐translational modification that is important for regulation of many cellular processes including cell division cycle in the eukaryotic kingdom. However, only a portion
Yen‐Ling Lin   +4 more
doaj   +1 more source

The ubiquitin-proteasome pathway in Huntington's disease. [PDF]

open access: yes, 2008
The accumulation of mutant protein is a common feature of neurodegenerative disease. In Huntington's disease, a polyglutamine expansion in the huntingtin protein triggers neuronal toxicity.
Finkbeiner, Steven, Mitra, Siddhartha
core   +2 more sources

SUMO modification of the ubiquitin-conjugating enzyme E2-25K

open access: yesNature Structural & Molecular Biology, 2005
Post-translational modification with small ubiquitin-related modifier (SUMO) alters the function of many proteins, but the molecular mechanisms and consequences of this modification are still poorly defined. During a screen for novel SUMO1 targets, we identified the ubiquitin-conjugating enzyme E2-25K (Hip2).
Pichler, A.   +8 more
openaire   +5 more sources

Purification of SUMO Conjugating Enzymes and Kinetic Analysis of Substrate Conjugation [PDF]

open access: yes, 2009
SUMO conjugation to protein substrates requires the concerted action of a dedicated E2 ubiquitin conjugation enzyme (Ubc9) and associated E3 ligases. Although Ubc9 can directly recognize and modify substrate lysine residues that occur within a consensus site for SUMO modification, E3 ligases can redirect specificity and enhance conjugation rates during
Ali A, Yunus, Christopher D, Lima
openaire   +2 more sources

N-terminal α-amino SUMOylation of cofilin-1 is critical for its regulation of actin depolymerization

open access: yesNature Communications, 2023
Small ubiquitin-like modifier (SUMO) typically conjugates to target proteins through isopeptide linkage to the ε-amino group of lysine residues. This posttranslational modification (PTM) plays pivotal roles in modulating protein function.
Weiji Weng   +10 more
doaj   +1 more source

Ubiquitination accomplished: E1 and E2 enzymes were not necessary [PDF]

open access: yes, 2016
Qiu et al. (2016) show that a mono-ADP-ribosyltransferase, SdeA, from Legionella pneumophila catalyzes ADP-ribosylation of ubiquitin, allowing SdeA to modify substrate with ubiquitin in the absence of E1 and E2 ...
Huang, Danny T., Nakasone, Mark
core   +1 more source

Characterization of SUMO-conjugating enzyme mutants in Schizosaccharomyces pombe identifies a dominant-negative allele that severely reduces SUMO conjugation [PDF]

open access: yesBiochemical Journal, 2003
The phenotypes of mutants defective in the Schizosaccharomyces pombe SUMO (small, ubiquitin-like modifier)-conjugating enzyme Hus5 (the homologue of Ubc9) show that it is required for recovery from S-phase arrest. Unlike the case with ubiquitination, where ligases are required, SUMO-conjugating enzymes are sufficient for substrate recognition and ...
Jenny C Y, Ho, Felicity Z, Watts
openaire   +2 more sources

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