Abstract
The content of 5-methylcytosine in eukaryotic DNA was measured by mass spectrometry. Almost equal amounts of methylated cytosine were found in the DNA of various tissues of the chicken. When chromatin or nuclei were digested with micrococcal nuclease, 50% of the DNA was found to be nuclease resistant. In contrast to this, over 75% of the 5-methylcytosine was protected from nuclease digestion by chromatin proteins. These results suggest that 5-methylcytosine is nonrandomly distributed with respect to the nucleoproteins.
Dates
Type | When |
---|---|
Created | 19 years, 3 months ago (May 31, 2006, 3:33 a.m.) |
Deposited | 3 years, 4 months ago (April 13, 2022, 11:14 a.m.) |
Indexed | 1 month, 1 week ago (July 28, 2025, 5:24 p.m.) |
Issued | 48 years, 2 months ago (July 1, 1977) |
Published | 48 years, 2 months ago (July 1, 1977) |
Published Online | 48 years, 2 months ago (July 1, 1977) |
Published Print | 48 years, 2 months ago (July 1, 1977) |
@article{Razin_1977, title={Distribution of 5-methylcytosine in chromatin.}, volume={74}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.74.7.2725}, DOI={10.1073/pnas.74.7.2725}, number={7}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Razin, A and Cedar, H}, year={1977}, month=jul, pages={2725–2728} }