... well as the former simulation as theydo to the experimental data. The large subunit NrfA,contains the high-spin heme, and four low-spin c-hemeswith gmax¼ 3.6, 3.50, 3.2 and 2.96, while the NrfH ... containing the double of NrfAsubunit in respect to the NrfH subunit. Nevertheless, insidethese huge aggregates there are species of the type a2b2. The present findings are in agreement with the ... buffer. According to the columncalibration, the molecular masses of the two observedpeaks (Table 1) are in good agreement to the NrfA and NrfH molecular masses, as further proved by the respectiveSDS/PAGE...