Results 61 to 70 of about 62,191 (286)

The effects of cytosine methylation on general transcription factors [PDF]

Scientific Reports, 2016
AbstractDNA methylation on CpG sites is the most common epigenetic modification. Recently, methylation in a non-CpG context was found to occur widely on genomic DNA. Moreover, methylation of non-CpG sites is a highly controlled process and its level may vary during cellular development.
Jianshi Jin, Tengfei Lian, Chan Gu, Kai Yu, Yi Qin Gao, Xiao-Dong Su   +5 more
openaire   +2 more sources

Mutant NPM1 in Acute Myeloid Leukemia Initiation and Maintenance

Aging and Cancer, EarlyView.
NPM1 mutations drive acute myeloid leukemia by acting as neomorphic transcriptional regulators that cooperate with Menin–MLL and XPO1 to sustain HOX/MEIS1 expression and block differentiation. Targeting these mutant‐specific transcriptional dependencies provides a rational therapeutic strategy for NPM1‐mutated AML.
Yanan Jiang, Zhong Fan, Runmeng Liu, Xiaotian Zhang   +3 more
wiley   +1 more source

Evidence Suggesting Absence of Mitochondrial DNA Methylation

Frontiers in Genetics, 2017
Methylation of nuclear genes encoding mitochondrial proteins participates in the regulation of mitochondria function. The existence of cytosine methylation in the mitochondrial genome is debated.
Mie Mechta, Lars R. Ingerslev, Odile Fabre, Martin Picard, Romain Barrès   +4 more
doaj   +1 more source

Herbivory induced methylation changes in the Lombardy poplar: A comparison of results obtained by epiGBS and WGBS.

PLoS ONE, 2023
DNA cytosine methylation is an epigenetic mechanism involved in regulation of plant responses to biotic and abiotic stress and its ability to change can vary with the sequence context in which a cytosine appears (CpG, CHG, CHH, where H = Adenine, Thymine,
A Niloya Troyee, Cristian Peña-Ponton, Mónica Medrano, Koen J F Verhoeven, Conchita Alonso   +4 more
doaj   +1 more source

Cytosine methylation and the ecology of intragenomic parasites

Trends in Genetics, 1997
Most of the 5-methylcytosine in mammalian DNA resides in transposons, which are specialized intragenomic parasites that represent at least 35% of the genome. Transposon promoters are inactive when methylated and, over time, C-->T transition mutations at methylated sites destroy many transposons. Apart from that subset of genes subject to X inactivation
J A, Yoder, C P, Walsh, T H, Bestor
openaire   +2 more sources

Investigation of the Influence of Cytosine Methylation on DNA Flexibility [PDF]

Journal of Biological Chemistry, 1995
To test the influence of pyrimidine methyl groups on DNA flexibility and helix repeat, two sets of 14 mixed sequence DNA molecules, spanning a range of lengths from 158 to 180 base pairs, were cyclized with T4 DNA ligase. The two sets differed only in that the Cyt-5 positions of all cytosines (80-90 cytosine residues per molecule) were fully methylated
Y, Hodges-Garcia, P J, Hagerman
openaire   +2 more sources

Inhibition of SIRT7 Overcomes Radioresistance in Pancreatic Neuroendocrine Tumors by Reactivating MEN1 Expression

Advanced Science, EarlyView.
Pancreatic neuroendocrine tumors frequently silence MEN1 through epigenetic mechanisms. Here, SIRT7 recruits DNMT1 to the MEN1 promoter, drives hypermethylation, and enhances DNA repair. Inhibiting SIRT7 restores MEN1, reduces MRN complex abundance, impairs double‐strand break repair, and sensitizes PanNET models to radiation, supporting SIRT7 as a ...
Jianyun Jiang, Yan Wang, Yi Qin, Luohai Chen, Xiaowu Xu, Guixiong Fan, Desheng Jing, Miaoyan Wei, Xianjun Yu, Junfeng Xu, Shunrong Ji, Jie Chen   +11 more
wiley   +1 more source

DNA methylation assessed by SMRT sequencing is linked to mutations in Neisseria meningitidis isolates [PDF]

, 2015
The Gram-negative bacterium Neisseria meningitidis features extensive genetic variability. To present, proposed virulence genotypes are also detected in isolates from asymptomatic carriers, indicating more complex mechanisms underlying variable ...
Gerd Pluschke, Christoph D. Schmid (72046), Schmid, Christoph D., Mane, Shrikant, Korlach, Jonas, Tyson A. Clark (105783), Katharina Röltgen, Wang, Guilin, Araceli Lamelas, Jonas Korlach (105788), Shrikant Mane, Araceli Lamelas (128475), Christoph D Schmid, Mohamad R Abdul Sater, Clark, Tyson A., Röltgen, Katharina, Gerd Pluschke (7855), Katharina Röltgen (120045), Guilin Wang, Sater, Mohamad R. Abdul, Tyson A Clark, Mohamad R. Abdul Sater (836669), Jonas Korlach, Guilin Wang (37620), Shrikant Mane (106631), Lamelas, Araceli, Pluschke, Gerd   +26 more
core   +1 more source

m6A‐Mediated Glycolysis by IL‐37 Drives T Cell Metabolic Reprogramming to Regulate Colitis

Advanced Science, EarlyView.
This study identifies an IL‐37/SIGIRR‐METTL14 regulatory axis that suppresses global m6A modification in CD4+ T cells. IL‐37 signaling, mediated through SIGIRR, inhibits IRAK4 and JNK phosphorylation, leading to downregulation of the methyltransferase METTL14.
Xiaoyan Wang, Jiadong Yu, Guolin Li, Ya Li, Fanlian Zeng, Jing Hu, Yifan Zhou, Chengcheng Yue, Qixiang Zhao, Chen Zhang, Hong Zhou, Fulei Zhao, Yawen Hu, Pei Zhou, Linna Gu, Yuting Feng, Mingxiang He, Shishi Huang, Xiaochi Sun, Xinmeng Wang, Jie Tang, Xinyu Zeng, Wenling Wu, Nongyu Huang, Xinai Cui, Kaijun Cui, Jiong Li   +26 more
wiley   +1 more source

The role of the host—Neutrophil biology

Periodontology 2000, EarlyView., 2023
Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple, Josefine Hirschfeld, Alpdogan Kantarci, Asaf Wilensky, Lior Shapira   +4 more
wiley   +1 more source