Histone gene expression during the cell cycle studied by in situ hybridisation |
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Authors: | P. R. Wilkes G. D. Birnie R. W. Old |
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Abstract: | Cloned sea urchin histone gene DNA sequences have been in situ hybridized to histone RNA sequences in the cytoplasm of unsynchronized populations of Friend erythroleukemic cells, HeLa S3 and Chinese Hamster Ovary cells. S phase cells were detected by [3H]thymidine labelling of cell cultures prior to preparation for in situ hybridization. Autoradiography of the hybridized preparations has shown that in unsynchronized cells histone sequences are present in abundance in the cytoplasm of S phase cells only. |
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