Fig. 8.

ESR spectra of the control reaction mixture (II). The reaction and ESR conditions were as described in Materials and Methods. Total volume of the reaction mixtures was 200 µl. A, a control reaction mixture (II); B, same as in A except that 0.2 mM 2-PCA was added; C, same as in A except that 1 mM EDTA was added; D, same as in A except that 1 mM EDTA and 0.2 mM 2-PCA were added.