a 2025

Adenosine (de)methylation on the crossroads of RNA and DNA synthesis

KRISHNA, Shwetha; Aleš OBRDLÍK; Praveenkumar RENGARAJ; Veronika ŠEMBEROVÁ RÁJECKÁ; Anton ZUEV et al.

Basic information

Original name

Adenosine (de)methylation on the crossroads of RNA and DNA synthesis

Authors

KRISHNA, Shwetha; Aleš OBRDLÍK; Praveenkumar RENGARAJ; Veronika ŠEMBEROVÁ RÁJECKÁ; Anton ZUEV; Helena PESCHELOVÁ; Veronika KOZLOVÁ; Michal ŠMÍDA; David POTĚŠIL; Jana DOBROVOLNÁ and Štěpánka VAŇÁČOVÁ

Edition

Microsymposium on RNA Biology, Vienna, 2025, 2025

Other information

Language

English

Type of outcome

Konferenční abstrakta

Country of publisher

Czech Republic

Confidentiality degree

is not subject to a state or trade secret

References:

Marked to be transferred to RIV

No

Organization

Středoevropský technologický institut – Repository – Repository

Keywords in English

mRNA; m6Am; m6A; eraser protein; FTO; DNA replication; assay

Links

EH22_008/0004575, research and development project.
Changed: 6/2/2026 00:50, RNDr. Daniel Jakubík

Abstract

In the original language

Eukaryotic mRNAs are subject to significant chemical modifications that exhibit a multi-layered regulation of transcript metabolism. Among these, N6-methyladenosine (m6A) and N6-2’O-dimethyladenosine (m6Am) are two prevalent modifications in higher eukaryotes. The dynamics of these modifications are tightly governed by dedicated machineries, the perturbation of which destabilise cellular homeostasis. In a recent study using proximity-based labelling approach, we identified that m6A/m eraser protein – FTO – was proximally interacting with proteins in DNA replication and repair pathways. To elucidate this further, in this study we performed subsequent protein interaction assays and genome wide CRISPR screening, where we identified multiple candidates involved at different levels of DNA synthesis. Additionally, we performed functional assays to further investigate the relevance of FTO in these processes. Preliminary results from these functional assays positively correlate with our observations from the high throughput screening approaches, highlighting the importance of the m6A/m modifying enzyme, FTO, in the maintenance of genome integrity.

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