Nuclear Matrix DNA from Chicken Erythrocytes Contains β -globin Gene Sequences
Nuclear matrices containing residual DNA were isolated from chicken erythrocytes after extraction of purified nuclei with buffered 2 M NaCl. After further purification of this residual DNA, it was found to contain high concentrations of β -globin gene sequences as assayed by dot hybridization with32...
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Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 1984-01, Vol.81 (2), p.304-307 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Nuclear matrices containing residual DNA were isolated from chicken erythrocytes after extraction of purified nuclei with buffered 2 M NaCl. After further purification of this residual DNA, it was found to contain high concentrations of β -globin gene sequences as assayed by dot hybridization with32P-labeled nick-translated pHB1001. Electron microscopy of a random sample of this residual DNA fraction shows the DNA to be intimately associated with protein at various intervals. A hypothesis for enrichment of active genes in residual DNA from purified chromatin or in nuclear matrix DNA is also discussed. |
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ISSN: | 0027-8424 1091-6490 |
DOI: | 10.1073/pnas.81.2.304 |