Results 61 to 70 of about 1,498 (184)

Mechanism of Repair of Acrolein- and Malondialdehyde-Derived Exocyclic Guanine Adducts by the α-Ketoglutarate/Fe(II) Dioxygenase AlkB [PDF]

, 2014
The structurally related exocyclic guanine adducts α-hydroxypropano-dG (α-OH-PdG), γ-hydroxypropano-dG (γ-OH-PdG), and M[subscript 1]dG are formed when DNA is exposed to the reactive aldehydes acrolein and malondialdehyde (MDA).
Delaney, James C., Essigmann, John M., Fedeles, Bogdan I., Kozekov, Ivan D., Kozekova, Albena, Li, Deyu, Marnett, Lawrence J., Rizzo, Carmelo J., Singh, Vipender   +8 more
core   +3 more sources

Molecular Mechanism of the IRF1/NFE2L1‐DT/ALKBH5/Cx43 Axis in Radiation‐Induced Injury in Vascular Endothelial Cells Through Pyroptosis

The Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Radiotherapy effectively eradicates tumor cells but can also trigger pyroptotic damage in vascular endothelial cells. This study investigates the role of interferon regulatory factor 1 (IRF1) in radiation‐induced endothelial injury, aiming to provide mechanistic insights for optimizing radiotherapy.
Chen Li, Jia‐Wen Yang, Yong‐Rui Jia, Jie Zhang, Qiao Gou   +4 more
wiley   +1 more source

DNA Checkpoint and Repair Factors Are Nuclear Sensors for Intracellular Organelle Stresses-Inflammations and Cancers Can Have High Genomic Risks. [PDF]

, 2018
Under inflammatory conditions, inflammatory cells release reactive oxygen species (ROS) and reactive nitrogen species (RNS) which cause DNA damage. If not appropriately repaired, DNA damage leads to gene mutations and genomic instability.
Chen, Hongping, Choi, Eric T., Cueto, Ramon, Drosatos, Konstantinos, Fu, Hangfei, Nanayakkara, Gayani K, Park, Joon Y., Qin, Xuebin, Shao, Lijian, Shao, Ying, Sheng, Haitao, Sun, Jianxin, Sun, Yu, Wang, Hong, Wang, Luqiao, Wu, Na, Yang, Qian, Yang, William Y, Yang, Wuping, Yang, Xiaofeng, Zeng, Huihong, Zhu, Qingxian   +21 more
core   +2 more sources

PbrIDD2‐PbrAPX14 Module Functions in the Ethylene‐Mediated Ripening and Senescence Process of Pear Fruit

Plant Biotechnology Journal, EarlyView.
ABSTRACT Endogenous H2O2 participated in the ethylene‐dependent ripening and senescence process of horticultural fruit as a secondary messenger; however, the molecular mechanism beneath such a phenomenon has not been fully clarified until recently. By a conjoint analysis of metabolite, enzyme activities, gene expression profiles in AsA‐GSH cycle of ...
Libin Wang, Junpeng Niu, Xiaoyu Tan, Yuhua Xie, Li Jiang, Chen Huan, Xu Zhang, Weiqi Luo, Bing Xie, Xiaopu Ren, Guodong Wang, Yuanyuan Guo, Shaoling Zhang   +12 more
wiley   +1 more source

Recent Advances on DNA Base Flipping: A General Mechanism for Writing, Reading, and Erasing DNA Modifications [PDF]

, 2022
The modification of DNA bases is a classic hallmark of epigenetics. Four forms of modified cytosine-5-methylcytosine, 5-hydroxymethylcytosine, 5-formylcytosine, and 5-carboxylcytosine-have been discovered in eukaryotic DNA. In addition to cytosine carbon-
Cheng, Xiaodong, Hong, Samuel, Horton, John R, Ren, Ren   +3 more
core   +2 more sources

Genome-Wide Identification and Expression Analysis of the ALKB Homolog Gene Family in Potato (Solanum tuberosum L.). [PDF]

Int J Mol Sci
N6-methyladenosine (m6A) is an abundant and pervasive post-transcriptional modification in eukaryotic mRNAs. AlkB homolog (ALKBH) proteins play crucial roles in RNA metabolism and translation, participating in m6A methylation modification to regulate plant development.
Li Y, Dong X, Ma J, Sui C, Jian H, Lv D.
europepmc   +3 more sources

Oxidative Stress and DNA Epigenetic Modifications in Cancer: Mechanisms and Targeted Therapeutics

MedComm – Oncology, Volume 5, Issue 2, June 2026.
Reactive oxygen species (ROS) modulate DNA methyltransferases (DNMTs), ten‐eleven translocation family proteins (TETs) and their cofactors, reshaping 5‐methylcytosine (5mC)/5‐hydroxymethylcytosine (5hmC)/5‐formylcytosine (5fC) landscapes and gene expression in cancer cells. In turn, epigenetic control of antioxidant and metabolic pathways feeds back on
Xishan Yang, Qitai Chen, YuJie Yu, Yi Zang, Rujia Zheng, Zhe Zhang, Shuaijun Lu, Li Zhou   +7 more
wiley   +1 more source

A human tRNA methyltransferase 9-like protein prevents tumour growth by regulating LIN9 and HIF1-α [PDF]

, 2012
Emerging evidence points to aberrant regulation of translation as a driver of cell transformation in cancer. Given the direct control of translation by tRNA modifications, tRNA modifying enzymes may function as regulators of cancer progression.
Aguirre-Ghiso, Julio A., Avivar-Valderas, Alvaro, Begley, Thomas J., Begley, Ulrike, Chan, Tsz Yan Clement, Dedon, Peter C., Endres, Lauren, Estrada, Yeriel, Patil, Ashish, Sosa, Maria Soledad, Su, Dan   +10 more
core   +1 more source

RNA Modifications: Current Understandings and Future Perspectives

MedComm, Volume 7, Issue 5, May 2026.
Types of RNA modification. We have summarized the currently common types of RNA modifications, including ac4C, m6A, m1A, m5C, m3C, m7G, and ψ, and visually characterized their features through structural formulas. The characteristic structures are marked with a background color different from the background color.
Shiyu Xiao, Tingwen Xiang, Chuan Yang, Xiaohua Wang, Gang Huang, Fei Luo, Zhao Xie, Yueqi Chen   +7 more
wiley   +1 more source

A moonlighting metabolic protein influences repair at DNA double-stranded breaks. [PDF]

, 2015
Catalytically active proteins with divergent dual functions are often described as 'moonlighting'. In this work we characterize a new, chromatin-based function of Lys20, a moonlighting protein that is well known for its role in metabolism.
Aris, John P, Pillus, Lorraine, Torres-Machorro, Ana Lilia   +2 more
core   +1 more source