Reutilization of Presumably Degraded Radioactive Label from a Chromosomal Fraction of Homologous and Heterologous Cells

J. Whang-Peng, J. H. Tjio, J. C. Cason

研究成果: 雜誌貢獻文章同行評審

5 引文 斯高帕斯(Scopus)

摘要

(1) A method for producing a suspension of pure mitotic chromosomes of Chinese hamster cells with insignificant contamination by interphase nuclei or their fragments is described. The yield obtained is high and the chromosome morphology is well preserved. (2) H3 thymidine label from such chromosomes became specifically incorporated into the chromosomes of fresh Chinese hamster cells and of human leucocyte cultures. No gross alteration in the chromosomes of the receptor cells occurred, and uptake of label was inhibited by the presence of added carrier thymidine in the medium, in an amount insufficient to inhibit DNA synthesis. Therefore, most of the incorporation appears to have involved previous degradation of the DNA at least to the level of free nucleotide. The authors gratefully acknowledge the helpful suggestions of Dr. Theodore T. Puck, Dr. Sherman M. Weissman, and Dr. Gordon Allen, as well as the technical assistance of Mrs. Gloria E. Johnson.
原文英語
頁(從 - 到)260-263
頁數4
期刊Proceedings of the Society for Experimental Biology and Medicine
125
發行號1
DOIs
出版狀態已發佈 - 一月 1 1967
對外發佈Yes

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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