Results 11 to 20 of about 57,661 (242)

Mammalian cytosine methylation at a glance [PDF]

open access: yesJournal of Cell Science, 2009
In mammals, methylation at symmetric CpG dinucleotides is necessary for the heritable silencing and regulation of many different classes of DNA sequences. These include highly abundant retrotransposons, such as the long terminal repeat (LTR)-based endogenous retroviruses, [e.g.
Steen K T, Ooi   +2 more
openaire   +2 more sources

Cytosine Methylation: Remaining Faithful [PDF]

open access: yesCurrent Biology, 2008
DNA methyltransferase-1 (DNMT1) has a higher specific activity on hemimethylated DNA than on unmethylated DNA, but this preference is too small to explain the faithful mitotic inheritance of genomic methylation patterns. New genetic studies in plants and mammals have identified a novel factor that increases the fidelity of maintenance methylation.
Ooi, Steen K.T., Bestor, Timothy H.
openaire   +2 more sources

Cytosine methylation and mammalian development [PDF]

open access: yesGenes & Development, 1999
Programmed methylation and demethylation of regulatory sequences has been proposed to play a central role in vertebrate development. We report here that the methylation status of the 5′ regions of a panel of tissue-specific genes could not be correlated with expression in tissues of fetal and newborn mice.
C P, Walsh, T H, Bestor
openaire   +2 more sources

The methylation landscape of giga-genome and the epigenetic timer of age in Chinese pine

open access: yesNature Communications, 2023
DNA methylation level declines during aging of mammals. Here, the authors report single-base resolution landscape of cytosine DNA methylation at different ages of Chinese pine and show that the global cytosine DNA methylation gradually increases as age ...
Jiang Li   +7 more
doaj   +1 more source

Experimental and Computational Approaches for Non-CpG Methylation Analysis

open access: yesEpigenomes, 2022
Cytosine methylation adjacent to adenine, thymine, and cytosine residues but not guanine of the DNA is distinctively known as non-CpG methylation. This CA/CT/CC methylation accounts for 15% of the total cytosine methylation and varies among different ...
Deepa Ramasamy   +3 more
doaj   +1 more source

Determination of the presence of 5-methylcytosine in Paramecium tetraurelia. [PDF]

open access: yesPLoS ONE, 2018
5-methylcytosine DNA methylation regulates gene expression and developmental programming in a broad range of eukaryotes. However, its presence and potential roles in ciliates, complex single-celled eukaryotes with germline-somatic genome specialization ...
Aditi Singh   +5 more
doaj   +1 more source

The DNA methylation level against the background of the genome size and t-heterochromatin content in some species of the genus Secale L [PDF]

open access: yesPeerJ, 2017
Methylation of cytosine in DNA is one of the most important epigenetic modifications in eukaryotes and plays a crucial role in the regulation of gene activity and the maintenance of genomic integrity.
Anna Kalinka   +2 more
doaj   +2 more sources

Global DNA cytosine methylation as an evolving trait: phylogenetic signal and correlated evolution with genome size in Angiosperms

open access: yesFrontiers in Genetics, 2015
DNA cytosine methylation is a widespread epigenetic mechanism in eukaryotes, and plant genomes commonly are densely methylated. Genomic methylation can be associated with functional consequences such as mutational events, genomic instability or altered ...
Conchita eAlonso   +3 more
doaj   +1 more source

Cytosine methylation alteration in natural populations of Leymus chinensis induced by multiple abiotic stresses. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: Human activity has a profound effect on the global environment and caused frequent occurrence of climatic fluctuations. To survive, plants need to adapt to the changing environmental conditions through altering their morphological and ...
Yingjie Yu   +8 more
doaj   +1 more source

Dynamic bimodal changes in CpG and non-CpG methylation genome-wide upon CGGBP1 loss-of-function

open access: yesBMC Research Notes, 2018
Objectives Although CpG methylation is well studied, mechanisms of non-CpG methylation in mammals remains elusive. Studying proteins with non-CpG cytosine methylation-sensitive DNA-binding, such as human CGGBP1, can unveil cytosine methylation regulatory
Divyesh Patel   +3 more
doaj   +1 more source

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