Results 81 to 90 of about 2,516,689 (307)

ADP‐ribosylation: An emerging regulator of the epigenome

Molecular Oncology, EarlyView.
ADP‐ribosylation has emerged as a dynamic epigenetic signaling mechanism that modifies histones and chromatin‐associated proteins. Through coordinated PARylation and MARylation, it integrates with other histone modifications to regulate chromatin structure, transcription factor activity, and gene expression, influencing genome function and disease ...
Cristel V. Camacho, Chenqian Liu, W. Lee Kraus   +2 more
wiley   +1 more source

DNA Methyltransferases, DNA Damage Repair, and Cancer [PDF]

, 2012
The maintenance DNA methyltransferase (DNMT) 1 and the de novo methyltransferases DNMT3A and DNMT3B are all essential for mammalian development. DNA methylation, catalyzed by the DNMTs, plays an important role in maintaining genome stability. Aberrant expression of DNMTs and disruption of DNA methylation patterns are closely associated with many forms ...
Bilian, Jin, Keith D, Robertson
openaire   +2 more sources

Unraveling the epigenetic code in cancer cell–tumor microenvironment crosstalk

Molecular Oncology, EarlyView.
Epigenetic regulation is a key driver of cancer development and progression. Diverse epigenetic alterations in cancer cells and components of the tumor microenvironment (TME) orchestrate their communication through multiple mechanisms. We discuss how the epigenetic code coordinates bidirectional cancer cell–TME crosstalk to promote cancer progression ...
Ji Hoon Park, Mi‐Young Kim
wiley   +1 more source

Somatic mutations, DNA methylation, and expression of DNA repair genes in Arabidopsis thaliana treated with 5-azacytidine

Biologia Plantarum, 2019
An inhibitor of DNA methylation 5-azacytidine (5A) is a chemical analog of the nucleoside cytidine. This study investigated the influence of 5A-induced DNA hypomethylation on the accumulation of somatic DNA mutations (nucleotide substitutions, indels) in
K.V. Kiselev, Z.V. Ogneva, A.S. Dubrovina, N.N. Nityagovsky, A.R. Suprun   +4 more
doaj   +1 more source

Super-resolution optical DNA Mapping via DNA methyltransferase-directed click chemistry

Nucleic Acids Research, 2014
We demonstrate an approach to optical DNA mapping, which enables near single-molecule characterization of whole bacteriophage genomes. Our approach uses a DNA methyltransferase enzyme to target labelling to specific sites and copper-catalysed azide ...
Charlotte Vranken, J. Deen, Lieve Dirix, T. Stakenborg, W. Dehaen, Volker Leen, J. Hofkens, R. Neely   +7 more
semanticscholar   +1 more source

Arginine methylation as a regulatory ratchet in cancer: From substrate selection to malignant‐state stabilization

Molecular Oncology, EarlyView.
Arginine methylation can be viewed as a persistence‐prone post‐translational modification regulated by a network of PRMTs. Competitive and compensatory interactions among PRMTs can redistribute methylation across substrate pools shaped by sequence, structural, spatial, and environmental layers, reinforcing RNA‐processing, chromatin, and signaling ...
So Hyun Kwon, Ji Min Lee
wiley   +1 more source

Development and validation of a generic methyltransferase enzymatic assay based on an SAH riboswitch

SLAS Discovery
Methylation of proteins and nucleic acids plays a fundamental role in epigenetic regulation, and discovery of methyltransferase (MT) inhibitors is an area of intense activity.
Ha Pham, Meera Kumar, Anibal Ramos Martinez, Mahbbat Ali, Robert G. Lowery   +4 more
doaj   +1 more source

Methylome Diversification through Changes in DNA Methyltransferase Sequence Specificity

PLoS Genetics, 2014
Epigenetic modifications such as DNA methylation have large effects on gene expression and genome maintenance. Helicobacter pylori, a human gastric pathogen, has a large number of DNA methyltransferase genes, with different strains having unique ...
Y. Furuta, Hiroe Namba-Fukuyo, T. Shibata, T. Nishiyama, S. Shigenobu, Yutaka Suzuki, S. Sugano, M. Hasebe, I. Kobayashi   +8 more
semanticscholar   +1 more source

A yeast model of 5‐oxoproline accumulation reveals a general toleration to 5‐oxoproline

FEBS Open Bio, EarlyView.
Using a yeast model, we show that even high accumulation of 5‐oxoproline causes only mild cellular stress and does not trigger oxidative stress. Instead, cells adapt by activating efflux pumps and diverse protective pathways, suggesting that previously proposed harmful effects of 5‐oxoproline may arise from indirect metabolic imbalances rather than the
Pratiksha Dubey, Vaishnavi Sanjayan, Praveen Singh, Shantanu Sengupta, Anand Kumar Bachhawat   +4 more
wiley   +1 more source

Association of Self-DNA Mediated TLR9-Related Gene, DNA Methyltransferase, and Cytokeratin Protein Expression Alterations in HT29-Cells to DNA Fragment Length and Methylation Status

The Scientific World Journal, 2013
To understand the biologic role of self-DNA bound to Toll-like Receptor 9 (TLR9), we assayed its effect on gene and methyltransferase expressions and cell differentiation in HT29 cells.
István Fűri, Ferenc Sipos, Sándor Spisák, Gergő Kiszner, Barnabás Wichmann, Andrea Schöller, Zsolt Tulassay, Györgyi Műzes, Béla Molnár   +8 more
doaj   +1 more source