Results 11 to 20 of about 349,927 (269)
The Journal of General Physiology, 1966 The methylated bases of DNA are formed by the transfer of the methyl group from S-adenosylmethionine to a polynucleotide acceptor. This transfer is catalyzed by highly specific enzymes which recognize a limited number of available sites in the DNA. The mechanism for the recognition is presently unknown.
M, Gold +3 more
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EcoSal Plus, 2009 The DNA of Escherichia coli contains 19,120 6-methyladenines and 12,045 5-methylcytosines in addition to the four regular bases, and these are formed by the postreplicative action of three DNA methyltransferases. The majority of the methylated bases are formed by the Dam and Dcmmethyltransferases encoded by the
Marinus, Martin G. +1 more
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Apoptosis and DNA Methylation [PDF]
Cancers, 2011 Epigenetic mechanisms assist in maintaining gene expression patterns and cellular properties in developing and adult tissues. The molecular pathology of disease states frequently includes perturbation of DNA and histone methylation patterns, which can activate apoptotic pathways associated with maintenance of genome integrity.
Meng, Huan X +8 more
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DNA methylation and DNA methyltransferases [PDF]
Epigenetics & Chromatin, 2017 The prevailing views as to the form, function, and regulation of genomic methylation patterns have their origin many years in the past, at a time when the structure of the mammalian genome was only dimly perceived, when the number of protein-encoding mammalian genes was believed to be at least five times greater than the actual number, and when it was ...
John R. Edwards +3 more
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DNA Methylation in Mammals [PDF]
Cold Spring Harbor Perspectives in Biology, 2014 DNA methylation is one of the best characterized epigenetic modifications. In mammals it is involved in various biological processes including the silencing of transposable elements, regulation of gene expression, genomic imprinting, and X-chromosome inactivation.
En, Li, Yi, Zhang
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Swiss Medical Weekly, 2013 DNA methylation, the addition of a methyl group to cytosines and adenosines, regulates gene expression on a level that is usually referred to as epigenetic, that is, stably maintained during cell divisions. In humans, aberrant DNA methylation is associated with several malignancies, including cancer and so-called imprinting disorders, making it an ...
von Känel T, Huber AR
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Genome-wide negative feedback drives transgenerational DNA methylation dynamics in Arabidopsis. [PDF]
PLoS Genetics, 2015 Epigenetic variations of phenotypes, especially those associated with DNA methylation, are often inherited over multiple generations in plants. The active and inactive chromatin states are heritable and can be maintained or even be amplified by positive ...
Tasuku Ito +11 more
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DNA methylation and cancer [PDF]
Oncogene, 2002 There is tremendous ferment in the field of epigenetics as the relationships between chromatin structure and DNA methylation patterns become clearer. Central to this activity is the realization that the 'histone code', which involves the post-translational modification of histones and which has important ramifications for chromatin structure, may be ...
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Methylated DNA Immunoprecipitation [PDF]
Journal of Visualized Experiments, 2009 The identification of DNA methylation patterns is a common procedure in the study of epigenetics, as methylation is known to have significant effects on gene expression, and is involved with normal development as well as disease. Thus, the ability to discriminate between methylated DNA and non-methylated DNA is essential for generating methylation ...
Kelsie L, Thu +6 more
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Frontiers in Physiology, 2014 DNA methylation is evolutionarily conserved. Vertebrates exhibit high, widespread DNA methylation whereas invertebrate genomes are less methylated, predominantly within gene bodies. DNA methylation in invertebrates is associated with transcription level,
Guillaume eRiviere, Guillaume eRiviere
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