Figure 5.

Mössbauer spectra of reconstituted (A) LipS2_WT and (B) LipS2_ΔRS collected at 4.2 K (vertical bars) in the absence of any external applied magnetic field. The black lines represent the overall simulated spectra, while the individual contributions from the [Fe₄S₄]²⁺ (90% of total intensity in both LipS2_WT and LipS2_ΔRS), [Fe₂S₂]²⁺ (5 and 2% of total intensities in LipS2_WT and LipS2_ΔRS, respectively) clusters, and N/O-coordinated high-spin Fe^II (5 and 8% of total intensities in LipS2_WT and LipS2_ΔRS, respectively) are shown by the blue, green, and pink lines, respectively.