Figure 5
From: Specific effects of antitumor active norspermidine on the structure and function of DNA
Left: Change in the intensity of 1H NMR signals depending on the concentration of CT DNA. The longitudinal axis is the inverse of the 1H NMR intensity evaluated through the integration of the observed signals, where all of the 1H signals are well-separated as shown in Fig. 4. The signal intensities in the graph were calculated based on the sum of all of the integrated values for the spectra of SPD and NSPD, so as to minimize the experimental error. Right: Schematic illustration showing how to evaluate the binding equilibrium constant, K, from the slope of the graph.
