Variable patterns of total DNA and rDNA methylation in animals
نویسندگان
چکیده
منابع مشابه
Patterns of DNA methylation in animals: an ecotoxicological perspective.
DNA methylation refers to the addition of a methyl group to nucleotides within DNA. As with other epigenetic endpoints, patterns of DNA methylation are susceptible to alterations due to exposure to environmental stressors, including contaminants. These alterations can persist in the absence of the initial stressor as cells divide, and can even be inherited between generations if they occur in t...
متن کاملDNA methylation patterns in
The frequency of cytosine raethylatlon at specific sites in the somatic 5S DNA (Xls) and trace oocyte 5S DNA (Xlt) of X. laevis has been determined using restriction enzymes that are inhibited by the presence of 5-methylcytosine (S^) within their cleavage sequences. 5S DNA methylation patterns were determined in genomic DNA from mature red blood cells, which express neither type of 5S gene, and...
متن کاملStudies of DNA methylation in animals.
We have been studying the evolution and function of DNA methylation in vertebrate animals using three related approaches. The first is to further characterise proteins that bind to methylated DNA. Such proteins can be viewed as 'receptors' of the methyl-CpG 'ligand' that mediate downstream consequences of DNA modification. The second approach involves CpG islands. These patches of non-methylate...
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although there are studies on pragmatic assessment, to date, literature has been almost silent about native and non-native english raters’ criteria for the assessment of efl learners’ pragmatic performance. focusing on this topic, this study pursued four purposes. the first one was to find criteria for rating the speech acts of apology and refusal in l2 by native and non-native english teachers...
15 صفحه اولDNA Methylation and Its Role in the Development of Leukemia
Epigenetic changes play an essential role in cancer pathogenesis. It has been established by next-generation sequencing that more than 50% of the human cancers carry mutations in mechanisms involved in the organization of the chromatin and epigenetic regulations. DNA methylation is among the most common epigenetic changes in leukemia. In contrast to DNA mutations which are passively inherited f...
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ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 1980
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/8.7.1485