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. 1963 Jan;3(1):49-63.
doi: 10.1016/s0006-3495(63)86803-4.

Physicochemical studies on the reaction between formaldehyde and DNA

D FREIFELDER, P F DAVISON

Physicochemical studies on the reaction between formaldehyde and DNA

D FREIFELDER et al. Biophys J. 1963 Jan.

Abstract

The reaction between formaldehyde and phage T7 DNA has been studied by optical absorbance and sedimentation measurements. Through the course of denaturation, OD(200) and s(20, w) rise; after the attainment of full hyperchromicity the s(20, w) falls sharply, suggesting a decrease in molecular weight. Conditions in which formaldehyde causes cross-linking are defined. Some experimental applications of the denaturation technique are given. Evidence which suggests that preformed single-strand interruptions may exist in phage DNA is briefly discussed.

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References

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