کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10768467 | 1050810 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Estimating the total mouse DNA methylation according to the B1 repetitive elements
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
Measuring the degree of methylation of the B1 element in mouse may represent the global DNA methylation status because about 30,000 copies of the B1 element are randomly dispersed in the total mouse genome. Six CpG dinucleotides are located within each 163Â bp size of B1 element, and each CpG dinucleotide was partially methylated. We quantitated the DNA methylation of the B1 repetitive elements by performing PCR for the methylation specific PCR (MSP) and also by the pyrosequencing. Each CpG dinucleotide was methylated at an average of 9% in the mouse genome by the pyrosequencing and MSP. Especially, we checked whether CpG methylation of the B1 element could respond to a treatment of the DNA methylation inhibitor, 5-azacytidine (5-AzaC). Consequently, the calibration graph resulting from measuring the relative CpG methylation percentage of the B1 element is linearly decreased with the increasing amount of 5-AzaC (up to 50Â ng/ml concentration) in the NIH3T3 cells with a standard deviation of only 1.73% between three independent assays. Our methods can be applied to the routine analysis of the global DNA methylation changes in mouse in vivo and in vitro in pharmaceuticals and basic epigenetic research with efforts being less labor-intensive.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 335, Issue 4, 7 October 2005, Pages 1211-1216
Journal: Biochemical and Biophysical Research Communications - Volume 335, Issue 4, 7 October 2005, Pages 1211-1216
نویسندگان
Kyoung-Sin Jeong, Suman Lee,