FIGURE 5.

³¹P spectra from the R₁ experiment at 0.2 T for the NADP⁺ diphosphate resonances. The sample contains 0.4 mm GMPR, 1.6 mm GMP, and NADP⁺ in 75 mm Tris-HCl, pH 7.8. The relaxation delay time in seconds spent at 0.2 T is shown below each spectrum.