Results 41 to 50 of about 6,510 (175)

The XRCC1 phosphate-binding pocket binds poly (ADP-ribose) and is required for XRCC1 function [PDF]

open access: yes, 2015
Poly (ADP-ribose) is synthesized at DNA single-strand breaks and can promote the recruitment of the scaffold protein, XRCC1. However, the mechanism and importance of this process has been challenged.
Breslin, Claire   +6 more
core   +7 more sources

Advances in using PARP inhibitors to treat cancer [PDF]

open access: yes, 2012
The poly (ADP-ribose) polymerase (PARP) family of enzymes plays a critical role in the maintenance of DNA integrity as part of the base excision pathway of DNA repair. PARP1 is overexpressed in a variety of cancers, and its expression has been associated
Shivaani Kummar   +6 more
core   +1 more source

Automodification of N‐terminal serine residues facilitates PARP2 release from DNA

open access: yesThe FEBS Journal, EarlyView.
PARP2 is involved in detecting DNA damage and its N‐terminal role is largely unknown. Based on biochemical and biophysical data, our findings suggest that in the presence of HPF1, N‐terminal serine 8 and 73 are enriched in auto‐ADP‐ribosylation. Our results provide insight into the mechanistic role of PARP2 N‐terminus in the PARylation‐dependent ...
Saurabh Singh Dhakar   +6 more
wiley   +1 more source

A ribose-functionalized NAD+ with unexpected high activity and selectivity for protein poly-ADP-ribosylation. [PDF]

open access: yes, 2019
Nicotinamide adenine dinucleotide (NAD+)-dependent ADP-ribosylation plays important roles in physiology and pathophysiology. It has been challenging to study this key type of enzymatic post-translational modification in particular for protein poly-ADP ...
Chen, Jingwen   +9 more
core   +1 more source

Visualization of poly(ADP-ribose) bound to PARG reveals inherent balance between exo- and endo-glycohydrolase activities [PDF]

open access: yes, 2013
Poly-ADP-ribosylation is a post-translational modification that regulates processes involved in genome stability. Breakdown of the poly(ADP-ribose) (PAR) polymer is catalysed by poly(ADP-ribose) glycohydrolase (PARG), whose endo-glycohydrolase activity ...
Ahel, Ivan   +10 more
core   +2 more sources

Elevated TRIM25 Impairs Poly (ADP‐ribose) Metabolism via PARG Degradation and Mediates Compression‐Induced Intervertebral Disc Degeneration

open access: yesAdvanced Science, Volume 13, Issue 25, 4 May 2026.
TRIM25 acts as a multifunctional hub driving intervertebral disc degeneration under mechanical stress. Mechanical compression significantly upregulates TRIM25 expression, establishing it as a key E3 ubiquitin ligase platform. TRIM25 targets PARG and Ku80 via distinct molecular interfaces, triggering their ubiquitination and degradation.
Zhangrong Cheng   +9 more
wiley   +1 more source

Real‐World Effectiveness and Safety of Pegzilarginase Treatment in Arginase 1 Deficiency

open access: yesJIMD Reports, Volume 67, Issue 3, May 2026.
ABSTRACT Pegzilarginase is the first disease‐modifying drug for arginase 1 deficiency. In clinical trials, pegzilarginase effectively normalised plasma arginine (pArg), which was associated with clinically relevant improvements in neuromotor outcomes. We report from a French early access scheme the first report on experience from pegzilarginase therapy
Anaïs Brassier   +10 more
wiley   +1 more source

Unanchored tri-NEDD8 inhibits PARP-1 to protect from oxidative stress-induced cell death [PDF]

open access: yes, 2019
NEDD8 is a ubiquitin‐like protein that activates cullin‐RING E3 ubiquitin ligases (CRLs). Here, we identify a novel role for NEDD8 in regulating the activity of poly(ADP‐ribose) polymerase 1 (PARP‐1) in response to oxidative stress.
Burchmore, Richard   +6 more
core   +4 more sources

Insects and non‐woody plants slow down tropical forest succession: A community‐wide experiment in Papua New Guinea

open access: yesJournal of Ecology, Volume 114, Issue 4, April 2026.
The importance of top‐down insect herbivory decreased, while the importance of bottom‐up plant competition with non‐woody plant species increased with elevation, representing a gradient of increasing environmental stress in the succession of woody plants.
Kari Sogera Iamba   +5 more
wiley   +1 more source

PARP AND PARG INHIBITION SELECTIVELY IMPAIR METABOLISM OF B-ALL CELL LINES AND INDUCE CYTOTOXICITY THROUGH DISTINCT CELL-DEATH PATHWAYS

open access: yesHematology, Transfusion and Cell Therapy
Background: Adult patients afflicted with Acute Lymphoblastic Leukemia (ALL) still represent a subset of poor prognosis, with a 5-year overall survival of around 46%.
CB Machado   +9 more
doaj   +1 more source

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