The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain.
Despite the importance of epigenetic regulation in neurological disorders, little is known about neuronal chromatin. Cerebellar Purkinje neurons have large and euchromatic nuclei, whereas granule cell nuclei are small and have a more typical heterochromatin distribution. While comparing the abundanc...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
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2009
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| _version_ | 1797098258785370112 |
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| author | Kriaucionis, S Heintz, N |
| author_facet | Kriaucionis, S Heintz, N |
| author_sort | Kriaucionis, S |
| collection | OXFORD |
| description | Despite the importance of epigenetic regulation in neurological disorders, little is known about neuronal chromatin. Cerebellar Purkinje neurons have large and euchromatic nuclei, whereas granule cell nuclei are small and have a more typical heterochromatin distribution. While comparing the abundance of 5-methylcytosine in Purkinje and granule cell nuclei, we detected the presence of an unusual DNA nucleotide. Using thin-layer chromatography, high-pressure liquid chromatography, and mass spectrometry, we identified the nucleotide as 5-hydroxymethyl-2'-deoxycytidine (hmdC). hmdC constitutes 0.6% of total nucleotides in Purkinje cells, 0.2% in granule cells, and is not present in cancer cell lines. hmdC is a constituent of nuclear DNA that is highly abundant in the brain, suggesting a role in epigenetic control of neuronal function. |
| first_indexed | 2024-03-07T05:06:59Z |
| format | Journal article |
| id | oxford-uuid:da429814-ad83-4ca1-9297-e2a6153bc576 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:06:59Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:da429814-ad83-4ca1-9297-e2a6153bc5762022-03-27T09:01:55ZThe nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:da429814-ad83-4ca1-9297-e2a6153bc576EnglishSymplectic Elements at Oxford2009Kriaucionis, SHeintz, NDespite the importance of epigenetic regulation in neurological disorders, little is known about neuronal chromatin. Cerebellar Purkinje neurons have large and euchromatic nuclei, whereas granule cell nuclei are small and have a more typical heterochromatin distribution. While comparing the abundance of 5-methylcytosine in Purkinje and granule cell nuclei, we detected the presence of an unusual DNA nucleotide. Using thin-layer chromatography, high-pressure liquid chromatography, and mass spectrometry, we identified the nucleotide as 5-hydroxymethyl-2'-deoxycytidine (hmdC). hmdC constitutes 0.6% of total nucleotides in Purkinje cells, 0.2% in granule cells, and is not present in cancer cell lines. hmdC is a constituent of nuclear DNA that is highly abundant in the brain, suggesting a role in epigenetic control of neuronal function. |
| spellingShingle | Kriaucionis, S Heintz, N The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. |
| title | The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. |
| title_full | The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. |
| title_fullStr | The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. |
| title_full_unstemmed | The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. |
| title_short | The nuclear DNA base 5-hydroxymethylcytosine is present in Purkinje neurons and the brain. |
| title_sort | nuclear dna base 5 hydroxymethylcytosine is present in purkinje neurons and the brain |
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