Rieske proteins from Thermus thermophilus

JA Fee, KL Findling, T Yoshida, R Hille, GE Tarr, DO Hearshen, WR Dunham, EP Day, TA Kent and E M nek (1984) Purification and characterization of the Rieske iron-sulfur protein from Thermus thermophilus. J Biol Chem 259 124-133... 

Figure 3. MOssbauer spectra of the reduced Rieske protein Thermus Thermophilus. (A) Spectrum taken at 230 K. The brackets indicate the doublets of the trapped-valence Fe2+ and Fe3+ sites. (B) 4.2 K spectrum of the same sample. The solid line is a spectral simulation based on an S = 1/2 spin Hamiltonian. S = 1/2 is the system spin resulting from coupling S = Sa + Sb according to H = JSa-Sb for J > 0 Sa = 5/2 and Sb = 2.

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