Staying true to yourself: mechanisms of DNA methylation maintenance in mammals

N Petryk, S Bultmann, T Bartke… - Nucleic acids …, 2021 - academic.oup.com
DNA methylation is essential to development and cellular physiology in mammals. Faulty
DNA methylation is frequently observed in human diseases like cancer and neurological …

[HTML][HTML] The insulin receptor: an important target for the development of novel medicines and pesticides

X Zhang, X Zhu, X Bi, J Huang, L Zhou - International journal of molecular …, 2022 - mdpi.com
The insulin receptor (IR) is a transmembrane protein that is activated by ligands in insulin
signaling pathways. The IR has been considered as a novel therapeutic target for clinical …

SPRTN patient variants cause global-genome DNA-protein crosslink repair defects

P Weickert, HY Li, MJ Götz, S Dürauer… - Nature …, 2023 - nature.com
DNA-protein crosslinks (DPCs) are pervasive DNA lesions that are induced by reactive
metabolites and various chemotherapeutic agents. Here, we develop a technique for the …

Structural basis for activation of DNMT1

A Kikuchi, H Onoda, K Yamaguchi, S Kori… - Nature …, 2022 - nature.com
DNMT1 is an essential enzyme that maintains genomic DNA methylation, and its function is
regulated by mechanisms that are not yet fully understood. Here, we report the cryo-EM …

Domain structure of the Dnmt1, Dnmt3a, and Dnmt3b DNA methyltransferases

S Tajima, I Suetake, K Takeshita, A Nakagawa… - … -Role and Function, 2022 - Springer
In mammals, three major DNA methyltransferases, Dnmt1, Dnmt3a, and Dnmt3b, have been
identified. Dnmt3a and Dnmt3b are responsible for establishing DNA methylation patterns …

Mechanistic basis for maintenance of CHG DNA methylation in plants

J Fang, J Jiang, SM Leichter, J Liu, M Biswal… - Nature …, 2022 - nature.com
DNA methylation is an evolutionarily conserved epigenetic mechanism essential for
transposon silencing and heterochromatin assembly. In plants, DNA methylation widely …

Flanking sequences influence the activity of TET1 and TET2 methylcytosine dioxygenases and affect genomic 5hmC patterns

S Adam, J Bräcker, V Klingel, B Osteresch… - Communications …, 2022 - nature.com
Abstract TET dioxygenases convert 5-methylcytosine (5mC) preferentially in a CpG context
into 5-hydroxymethylcytosine (5hmC) and higher oxidized forms, thereby initiating DNA …

Selective chemical tracking of Dnmt1 catalytic activity in live cells

V Stankevičius, P Gibas, B Masiulionytė, L Gasiulė… - Molecular cell, 2022 - cell.com
Enzymatic methylation of cytosine to 5-methylcytosine in DNA is a fundamental epigenetic
mechanism involved in mammalian development and disease. DNA methylation is brought …

DNMT1 inhibition by pUG-fold quadruplex RNA

LI Jansson-Fritzberg, CI Sousa, MJ Smallegan… - RNA, 2023 - rnajournal.cshlp.org
Aberrant DNA methylation is one of the earliest hallmarks of cancer. DNMT1 is responsible
for methylating newly replicated DNA, but the precise regulation of DNMT1 to ensure faithful …

Deep enzymology studies on DNA methyltransferases reveal novel connections between flanking sequences and enzyme activity

A Jeltsch, S Adam, M Dukatz, M Emperle… - Journal of molecular …, 2021 - Elsevier
DNA interacting enzymes recognize their target sequences embedded in variable flanking
sequence context. The influence of flanking sequences on enzymatic activities of DNA …