Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine

Methylation at C5 position of cytosine (5 mC) is the most abundantly occurring methylation process at CpG island, which has been well known as an epigenetic modification linked to many human diseases. Recently, another methylation approach has been discovered to show that DNA methyltransferases (DNM...

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Main Authors: Mansour H. Almatarneh, Ghada G. Kayed, Mohammednoor Altarawneh, Yuming Zhao, Amita Verma
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2022/2673396
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author Mansour H. Almatarneh
Ghada G. Kayed
Mohammednoor Altarawneh
Yuming Zhao
Amita Verma
author_facet Mansour H. Almatarneh
Ghada G. Kayed
Mohammednoor Altarawneh
Yuming Zhao
Amita Verma
author_sort Mansour H. Almatarneh
collection DOAJ
description Methylation at C5 position of cytosine (5 mC) is the most abundantly occurring methylation process at CpG island, which has been well known as an epigenetic modification linked to many human diseases. Recently, another methylation approach has been discovered to show that DNA methyltransferases (DNMTs) promote the addition of the methyl group at position 3 to yield 3 mC. The existence of 3 mC can cause severe damages to the DNA strand, such as blocking its replication, repair, and transcription, affecting its stability, and initiating a double-strand DNA break. To gain a deeper insight into the formation of 3 mC, we have performed density functional theory (DFT) modeling studies at different levels of theory to clearly map out the mechanistic details for this new methylation approach. Our computed results are in harmony with pertinent experimental observations and shed light on a crucial off-target activity of DNMTs.
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institution Kabale University
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spelling doaj-art-ecca44ae9f5b4755ac61093279ba83fb2025-02-03T07:24:27ZengWileyJournal of Chemistry2090-90712022-01-01202210.1155/2022/2673396Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl CytosineMansour H. Almatarneh0Ghada G. Kayed1Mohammednoor Altarawneh2Yuming Zhao3Amita Verma4Department of ChemistryDepartment of ChemistryDepartment of Chemical and Petroleum EngineeringDepartment of ChemistryDepartment of Pharmaceutical SciencesMethylation at C5 position of cytosine (5 mC) is the most abundantly occurring methylation process at CpG island, which has been well known as an epigenetic modification linked to many human diseases. Recently, another methylation approach has been discovered to show that DNA methyltransferases (DNMTs) promote the addition of the methyl group at position 3 to yield 3 mC. The existence of 3 mC can cause severe damages to the DNA strand, such as blocking its replication, repair, and transcription, affecting its stability, and initiating a double-strand DNA break. To gain a deeper insight into the formation of 3 mC, we have performed density functional theory (DFT) modeling studies at different levels of theory to clearly map out the mechanistic details for this new methylation approach. Our computed results are in harmony with pertinent experimental observations and shed light on a crucial off-target activity of DNMTs.http://dx.doi.org/10.1155/2022/2673396
spellingShingle Mansour H. Almatarneh
Ghada G. Kayed
Mohammednoor Altarawneh
Yuming Zhao
Amita Verma
Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine
Journal of Chemistry
title Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine
title_full Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine
title_fullStr Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine
title_full_unstemmed Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine
title_short Computational Insights in DNA Methylation: Catalytic and Mechanistic Elucidations for Forming 3-Methyl Cytosine
title_sort computational insights in dna methylation catalytic and mechanistic elucidations for forming 3 methyl cytosine
url http://dx.doi.org/10.1155/2022/2673396
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