Two lines of normal human skin fibroblasts and five derivative lines transformed in culture to neoplastic cells by chemical carcinogens were compared with respect to chromatid breakage produced by exposure to low-intensi-
Formation of additional contacts of chromosome with membrane in the process of DNA repair synthesis in bacterial cells
β Scribed by V. G. Bezlepkin; Yu. Yu. Malinovsky; A. I. Gaziev
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 869 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0233-111X
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β¦ Synopsis
An increase in the amount of membrane-bouqd DNA was found in B. subtitilia cells with UVinduced DNA repair synthesis as compared to untreated cells. It was shown that DNA repair synthesis occurred in DNA membrane complexes (DMC) formed during W-irradiation. UV-induced formation of DMC was observed in aells of wild type strainbwhich were capable of repairing damaged DNA but not in a mutant defective in DNA-polymerase I. It was demonstrated that DNApolymerase I is located on the membrane of B. subtiiis cells. This suggested a participation of DNA.
lymerase I in binding of the chromosome to the membrane in W-irradiated cells. UV-induced 332 -337.
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