Table 2.

Reaction of E52Q/F₃Y₁₂₂^•-β2^a and WT-α2^a with either ATP/CDP or TTP/GDP or TTP/N₃CDP analyzed by EPR spectroscopy

^a The concentration, 15 to 50 μm of 1:1 E52Q/F₃Y₁₂₂^•-β2 and WT-α2.

^b The spectrum after subtraction was similar to background.

^c ND, not determined.