. 2015 Aug 31;112(37):11455–11460. doi: 10.1073/pnas.1508440112

Table 1.

Mössbauer fitting parameters corresponding to Fig. 3

Site	δ, mm s⁻¹	ΔE_Q, mm s⁻¹	Area, %	Relative area
HydG^57Fe
[4Fe–4S]⁺_aux	0.61^*^,^†	1.58^*	21.9	2^*^,^†
	0.53^*	1.02^*	21.9	2^*^,^†
Dangler Fe²⁺	1.19	3.47	11.0	1^*
[4Fe–4S]⁺_RS	0.58	1.27	19.4	1.8
	0.51	1.00	19.4	1.8
Other Fe	0.72	2.85	6.4	0.6
HydG^XN57Fe
[4Fe–4S]⁺_aux	0.61	1.58	40.1	2.0^†
	0.53	1.02	40.1	2.0^†
Dangler Fe²⁺	1.23	3.64	19.9	1
HydG^57Fe-dangler
[4Fe–4S]⁺	0.68^‡	1.68^‡	28.1^‡	0.8
	0.45^‡	1.20^‡	16.9^‡	0.8
Dangler Fe²⁺	1.22	3.64	55.0	1

Parameters were determined using the HydG^XN57Fe sample and fixed during spectral fitting.

^{^†}

The intensities of the [Fe²⁺Fe²⁺] and [Fe^2.5+Fe^2.5+] doublets for each [4Fe–4S]⁺ cluster were fixed to be equal.

^{^‡}

Because of the low intensity of the [4Fe–4S]⁺ cluster doublets in this sample, these fitting parameters are likely not accurate. Rather, they were used to obtain a close fit to the data to estimate the total intensity of the [4Fe–4S]⁺ cluster doublets relative to that of the dangler Fe²⁺ doublet.