Turkish Journal of Biology
Abstract
At the chromatin level, methylated CpG dinucleotides are R.Msp1 resistant compared with nonmethylated counterparts. The DNA of two E.coli strains was analyzed following transformation-with bacterial cytosine-5-methyltransferase gene M.Msp1 in mammalian transfection vector pcDNA3. Expression of the M.Msp1 was tested by R.Msp1 digestion. The results suggest that the DNA of both strains was fully methylated at the CCGG sequences, by the active enzyme under the control of T7 and cytomegalovirus (CMV) promoters. Methylated DNA can not be digested and it exhibits higher frag-ment sizes in 1% agarose gel in contrast to the untransformed cell DNAs in vivo.
DOI
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Keywords
Bacterial MTase M.Msp1, in vivo DNA methylation
First Page
143
Last Page
152
Recommended Citation
ÖZDEMİR, Öztürk and HORNBY, David (1998) "In vivo DNA Methylation of Escherichia coliDH5\alphaand Top10F' Strains by Bacterial Cytosine-5Methyltransferase M. Msp1," Turkish Journal of Biology: Vol. 22: No. 2, Article 1. Available at: https://journals.tubitak.gov.tr/biology/vol22/iss2/1
