Summary
Chicken liver crude extract produced acid-soluble diphenylamine-positive material in the presence of depurinated and alkylated DNA, while the formation of such material from normal and single stranded DNA was comparatively low. The maximum acid-soluble material produced was not increased further by alkali, indicating that the enzymatic action is mostly directed towards apurinic sites.
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Acknowledgment. The authors are grateful to Council of Scientific and Industrial Research, India, for financial assistance to one of us (R. Y. R.).
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Rizvi, R.Y., Hadi, S.M. Nuclease for DNA apurinic sites in chicken liver. Experientia 33, 418–420 (1977). https://doi.org/10.1007/BF01922186
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DOI: https://doi.org/10.1007/BF01922186