Results 11 to 20 of about 61,707 (214)

Chromatin composition is changed by poly(ADP-ribosyl)ation during chromatin immunoprecipitation. [PDF]

open access: yesPLoS ONE, 2012
Chromatin-immunoprecipitation (ChIP) employs generally a mild formaldehyde cross-linking step, which is followed by isolation of specific protein-DNA complexes and subsequent PCR testing, to analyze DNA-protein interactions.
Sascha Beneke   +4 more
doaj   +1 more source

Neurological and histological consequences induced by in vivo cerebral oxidative stress: evidence for beneficial effects of SRT1720, a sirtuin 1 activator, and sirtuin 1-mediated neuroprotective effects of poly(ADP-ribose) polymerase inhibition.

open access: yesPLoS ONE, 2014
Poly(ADP-ribose)polymerase and sirtuin 1 are both NAD(+)-dependent enzymes. In vitro oxidative stress activates poly(ADP-ribose)polymerase, decreases NAD(+) level, sirtuin 1 activity and finally leads to cell death.
Cindy Gueguen   +4 more
doaj   +1 more source

Structural modeling of NAD+ binding modes to PARP-1

open access: yesВавиловский журнал генетики и селекции, 2017
The nuclear protein poly (ADP-ribose) polymerase-1 (PARP-1) plays an important role in the signaling and repair of DNA. PARP-1 catalyses covalent binding of poly (ADP-ribose) polymers with itself as well as with other acceptor proteins using NAD+ as a ...
N. V. Ivanisenko   +2 more
doaj   +1 more source

Recruitment of ubiquitin-activating enzyme UBA1 to DNA by poly(ADP-ribose) promotes ATR signalling

open access: yesLife Science Alliance, 2018
Human but not yeast UBA1 binds poly(ADP-ribose) polymers via a solvent-exposed and positively charged patch. Poly(ADP-ribose) polymerase 1–dependent recruitment of UBA1 to DNA ensures ataxia-telangiectasia and RAD3-related activation.
Ramhari Kumbhar   +8 more
doaj   +1 more source

Automodified Poly(ADP-Ribose) Polymerase Analysisto Monitor DNA Damagein Peripheral Lymphocytes of Floriculturists Occupationally Exposed to Pesticides

open access: yesCells, 2019
Increased DNA damage and the propension to cancer development, depend on the modulation of the mechanisms to control and maintain genomic integrity. Poly(ADP-Ribose)Polymerase activation and automodification are early responses to genotoxic stress.
Serena Imperato   +5 more
doaj   +1 more source

HPF1 remodels the active site of PARP1 to enable the serine ADP-ribosylation of histones

open access: yesNature Communications, 2021
Once DNA breaks occur, poly(ADP-ribose) polymerase 1 (PARP1) ADP-ribosylates itself and other DNA repair factors to initiate the repair process. Here, the authors resolve the crystal structures of mouse and human HPF1, and human HPF1/PARP1 complex ...
Fa-Hui Sun   +5 more
doaj   +1 more source

Mcl-1 suppresses abasic site repair following bile acid–induced hepatic cellular DNA damage

open access: yesTumor Biology, 2017
In cholestasis, increases in bile acid levels result in the generation of reactive oxygen species and the induction of DNA damage and mutation. It is believed that bile acid accumulation is associated with liver tumorigenesis. However, the mechanism that
Haiyang Yu   +11 more
doaj   +1 more source

Nitrosative Stress as a Modulator of Inflammatory Change in a Model of Takotsubo Syndrome

open access: yesJACC: Basic to Translational Science, 2018
Summary: Previous studies have shown that patients with Takotsubo syndrome (TS) have supranormal nitric oxide signaling, and post-mortem studies of TS heart samples revealed nitrosative stress.
Sven Y. Surikow, BHlthSc (Hons)   +15 more
doaj   +1 more source

Electrochemical Methods for the Detection of Poly(ADP-ribose) Polymerase-1

open access: yesInternational Journal of Electrochemical Science, 2021
Poly(ADP-ribose) polymerase-1 (PARP-1) plays an important role in DNA repair and apoptosis. The enzyme has been regarded as the biomarker for many diseases including cancer.
Ting Sun, Yanying Li, Feng Zhao
doaj   +1 more source

Inputs and outputs of poly(ADP-ribosyl)ation: Relevance to oxidative stress

open access: yesRedox Biology, 2014
Oxidative stress can cause DNA breaks which induce activation of the DNA nick sensor enzyme poly(ADP-ribose) polymerase-1 (PARP-1), part of the 17 member PARP enzyme family.
Csaba Hegedűs, László Virág
doaj   +1 more source

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