Results 21 to 30 of about 6,416 (143)

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

, 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, Ahel, Marijan, Banos, Benito, Barkauskaite, Eva, Brassington, Amy, Dunstan, Mark S., Lafite, Pierre, Leys, David, Mitchison, Timothy J., Tan, Edwin S., Warwicker, Jim   +10 more
core   +2 more sources

Poly-ADP Ribosyl Polymerase 1 (PARP1) Regulates Influenza A Virus Polymerase

Advances in Virology, 2019
Influenza A viruses (IAV) are evolutionarily successful pathogens, capable of infecting a number of avian and mammalian species and responsible for pandemic and seasonal epidemic disease in humans.
Liset Westera, Alisha M. Jennings, Jad Maamary, Martin Schwemmle, Adolfo García-Sastre, Eric Bortz   +5 more
doaj   +1 more source

Targeting PARG induces tumor cell growth inhibition and antitumor immune response by reducing phosphorylated STAT3 in ovarian cancer

Journal for ImmunoTherapy of Cancer
Background Ovarian cancer is the most lethal gynecological malignancy, with limited treatment options after failure of standard therapies. Despite the potential of poly(ADP-ribose) polymerase inhibitors in treating DNA damage response (DDR)-deficient ...
Lorna Rodriguez-Rodriguez, Rui Huang, Mihaela Cristea, Qianqian Zhao, Adrian Kohut, Hua Yu, Mihae Song, Antons Martincuks, Chunyan Zhang, Edward W Wang, Theresa Austria, Yi-Jia Li, Nicole Lugo Santiago, Rosemarie Martinez Borrero, Binghui Shen   +14 more
doaj   +1 more source

DePARylation is critical for S phase progression and cell survival

eLife
Poly(ADP-ribose)ylation or PARylation by PAR polymerase 1 (PARP1) and dePARylation by poly(ADP-ribose) glycohydrolase (PARG) are equally important for the dynamic regulation of DNA damage response.
Litong Nie, Chao Wang, Min Huang, Xiaoguang Liu, Xu Feng, Mengfan Tang, Siting Li, Qinglei Hang, Hongqi Teng, Xi Shen, Li Ma, Boyi Gan, Junjie Chen   +12 more
doaj   +1 more source

Posttranscriptional regulation of PARG mRNA by HuR facilitates DNA repair and resistance to PARP inhibitors [PDF]

, 2017
The majority of pancreatic ductal adenocarcinomas (PDAC) rely on the mRNA stability factor HuR (ELAV-L1) to drive cancer growth and progression. Here, we show that CRISPR-Cas9–mediated silencing of the HuR locus increases the relative sensitivity of PDAC
Brody, Jonathan R., Chand, Saswati N., Cozzitorto, Joseph A., Jiang, Wei, Knudsen, Karen E., Lal, Shruti, Londin, Eric R., Meisner-Kober, Nicole, Nevler, Avinoam, Pascal, John M, Pishvaian, Michael J., Romeo, Carmella, Sanan, Akshay R., Schiewer, M. J., Scolaro, Laura, Winter, Jordan M., Yeo, Charles, Zarei, Mahsa   +17 more
core   +1 more source

Anticancer sensitivities and biological characteristics of HCT116 cells resistant to the selective poly(ADP‐ribose) glycohydrolase inhibitor

FEBS Open Bio, EarlyView.
We analyzed alterations of PAR metabolism‐related proteins in PARG inhibitor‐resistant HCT116RPDD cells. Although PARG levels remained unchanged, HCT116RPDD cells exhibited reduced PARP1 and ARH3 expression and elevated PAR levels. Interestingly, HCT116RPDD cells exhibited slightly elevated intracellular NAD+/NADH and ATP levels. Our findings suggest a
Kaede Tsuda, Yoko Ogino, Akira Sato
wiley   +1 more source

Disrupted ADP-ribose metabolism with nuclear Poly (ADP-ribose) accumulation leads to different cell death pathways in presence of hydrogen peroxide in procyclic Trypanosoma brucei [PDF]

, 2016
TbPARG in Trypanosoma brucei. A) TbPARG localization in untreated (control) and in procyclic cultures exposed to 500 μM H2O2 for 10 min. IFI was carried out as reported in our previous work [33].
Harikanth Venkannagari, Lari Lehtiö, Mariana Schlesinger, Mirtha M. Flawiá, Mohit Narwal, Salomé C. Vilchez Larrea, Silvia H. Fernández Villamil, Teemu Haikarainen   +7 more
core   +6 more sources

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

Advanced Science, EarlyView.
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, Haiyang Gao, Wenbo Wu, Pengzhi Shi, Xianglong Chen, Zimu Yu, Wang Wu, Kangcheng Zhao, Cao Yang, Yukun Zhang   +9 more
wiley   +1 more source

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

The 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, Albert Galera‐Prat, Jin Cai, Julia Preisser, Tiila‐Riikka Kiema, Andreas Ladurner, Lari Lehtiö   +6 more
wiley   +1 more source

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

, 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, Gourlay, Robert, Hjerpe, Roland, Hsia, Oliver, Keuss, Matthew J., Kurz, Thimo, Trost, Matthias   +6 more
core   +4 more sources