Abstract
The interactions of d- and l-lysergic acid diethylamide (LSD) with DNA were studied by means of equilibrium dialysis and circular dichroism. There was no significant difference between the binidinig of d- and l-LSD to DNA. Circular dichroism data do not favor intercalation, and it is suggested that LSD is probably bound outside the DNA helix, perhaps to the phosphate groups of DNA by some ionic mechanism.
ACKNOWLEDGMENT We thank Professor Irving Klotz, Northwestern University, for helpful comments and Messrs. D. Bau and S. Siegel for technical assistance.
- Copyright ©, 1972, by Academic Press, Inc.
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