Results 51 to 60 of about 105,381 (168)

In vivo vizualisation of mono-ADP-ribosylation by dPARP16 upon amino-acid starvation

eLife, 2016
PARP catalysed ADP-ribosylation is a post-translational modification involved in several physiological and pathological processes, including cellular stress.
Angelica Aguilera-Gomez, Marinke M van Oorschot, Tineke Veenendaal, Catherine Rabouille   +3 more
doaj   +1 more source

Early Retinal UCHL1 Dysregulation Coupled With Synaptic Loss Reflects Alzheimer's Disease Severity

Advanced Science, EarlyView.
This study identifies synapse‐enriched deubiquitinase UCHL1 as an early Aβ‐responsive regulator of retinal synaptopathy in Alzheimer's disease. Retinal UCHL1 loss accompanies excitatory synapse degeneration, p75NTR activation, and neuroinflammation, and predicts Braak stage and cognitive decline. Aβ42 fibrils trigger synaptic and UCHL1 depletion before
Altan Rentsendorj, Jean‐Philippe Vit, Alexandre Hutton, Yosef Koronyo, Saba Shahin, Edward Robinson, Ernesto Barron, Anthony Rodriguez, Ousman Jallow, Julia Sheyn, Bhakta Prasad Gaire, Lalita Subedi, Miyah R. Davis, Barathan Gnanabharathi, Alexander V. Ljubimov, Stuart L. Graham, Vivek K. Gupta, Mehdi Mirzaei, Debra Hawes, Katlin Silm, Keith L. Black, Lon S. Schneider, Alfredo A. Sadun, Jesse G. Meyer, Dieu‐Trang Fuchs, Maya Koronyo‐Hamaoui   +25 more
wiley   +1 more source

RSF1‐Dependent PAR Turnover Promotes 53BP1 Liquid Condensate Formation at DNA Damage Sites

Advanced Science, EarlyView.
At sites of DNA damage, RSF1 recruits PARG to accelerate PAR turnover, triggering a switch from PAR‐driven condensates to 53BP1 condensates. This condensate transition enables p53‐dependent gene transcription and coordinates the DNA damage response.
Yungyeong Heo, Yonghyeon Kim, Nangyeong Hwang, Gwanho Sung, Sujin Jo, Yeonhu Lee, Ho‐Chul Kang, Jae‐Ho Lee, Yong Won Choi, Hyeseong Cho, Sunwoo Min   +10 more
wiley   +1 more source

Macrophage PARP7 Alleviates Septic Cardiomyopathy by Interacting With TBK1 and Suppressing TBK1‐Driven Inflammatory Response

Advanced Science, EarlyView.
In septic cardiomyopathy, PARP7 directly binds TBK1 and mediates its ADP‐ribosylation, thereby repressing TBK1‐driven proinflammatory signaling in macrophages. ABSTRACT Septic cardiomyopathy is a life‐threatening complication of sepsis, and an uncontrolled inflammatory response represents a key pathogenic mechanism. PARP7 negatively regulates the IFN‐I
Jibo Han, Lintao Wang, Xin Zhong, Shenggang Zhao, Huihui Xie, Xue Han, Liming Lin, Yiting Lyu, Ke Xu, Jiajun Xu, Xiaowen Shi   +10 more
wiley   +1 more source

BIOCHEMICAL CHARACTERIZATION OF AUTO-ADP-RIBOSYLATED NARE

, 2011
Mono ADP-ribosylation is a post-translational modification, conserved in viruses, prokaryotes and eukaryotes. Several ADP-ribose transfer enzymes as ART2, ART5, ExoS and CT are able to modify themselves, changing their chemical and biological functions ...
M. Picchianti, M. Pizza, BALDUCCI, Enrico   +2 more
core   +1 more source

Molecular Glue Degraders Enhance CAPRIN1‐Dependent Lysosomal Degradation of APP and Reduce Amyloid β in Alzheimer's Disease

Advanced Science, EarlyView.
A new class of lysosome‐directed molecular glue degraders selectively enhance CAPRIN1–APP interactions, driving APP degradation and reducing amyloid‐β production in human neurons and Alzheimer's disease mouse models. This CAPRIN1‐dependent targeted protein degradation strategy reveals a previously unrecognized therapeutic approach for disrupting the ...
Sunghan Jung, Xu Wang, Bin Liu, Raktim Roy, Nancy Jaiswal, Ratan K. Rai, Yuichiro Takagi, Cen Gao, Lifan Zeng, Ho‐Yin Lo, Reagan K. Wohlford, Ryan K. Higgins, Bruce T. Lamb, Anantha Shekhar, Anita C. Bellail, Chunhai Hao   +15 more
wiley   +1 more source

Emerging roles of eraser enzymes in the dynamic control of protein ADP-ribosylation

Nature Communications, 2019
ADP-ribose erasing enzymes are increasingly recognized as critical regulators of protein ADP-ribosylation dynamics in living systems. Here, the authors review recent advances in the discovery and characterization of ADP-ribose erasers and discuss their ...
Julia O’Sullivan, Maria Tedim Ferreira, Jean-Philippe Gagné, Ajit K. Sharma, Michael J. Hendzel, Jean-Yves Masson, Guy G. Poirier   +6 more
doaj   +1 more source

MDL‐800‐induced SIRT6 activation decreases age‐associated osteoarthritis in mice

Arthritis &Rheumatology, Accepted Article.
Objective SIRT6 is a nuclear‐localized histone deacetylase that regulates multiple pathways associated with aging. This study aimed to determine whether systemic administration of a small molecule activator of SIRT6, MDL‐800, decreases the severity of age‐associated osteoarthritis (OA) in mice.
Matheus Moreira Perez, Pranay Ramteke, Bahiyah Watson, Owen Haslam, Eirene Choi, Susan Chubinskaya, Mandy J. Peffers, William R. Davis, Jacqueline Shine, Brian O. Diekman, Richard F. Loeser, Theresa A. Freeman, Makarand V. Risbud, John A. Collins   +13 more
wiley   +1 more source

Ion Activation Methods for Top‐Down Proteomics

Mass Spectrometry Reviews, EarlyView.
ABSTRACT Mass spectrometry (MS) has emerged as a premier method used to characterize the sequences of proteins. Top‐down proteomics aims to capture the multiple sources of structural diversity reflected in proteins, such as those that arise from alternative RNA splicing events or the addition of post‐translational modifications. Tandem MS (i.e., MS/MS)
Jada N. Walker, Jennifer S. Brodbelt
wiley   +1 more source

Interplay between ADP-ribosyltransferases and essential cell signaling pathways controls cellular responses

Cell Discovery, 2021
Signaling cascades provide integrative and interactive frameworks that allow the cell to respond to signals from its environment and/or from within the cell itself.
Flurina Boehi, Patrick Manetsch, Michael O. Hottiger   +2 more
doaj   +1 more source