Extended Data Table 3 |.
Iron species contents in Mössbauer simulations
| Sample | [Fe4S4]2+ | [Fe4S4]+ | FeII_A | FeII_B | FeII_C |
|---|---|---|---|---|---|
| Reconstituted 57Fe-ΔRS-cluster variant | 90%a | - | - | - | - |
| Reconstituted 57Fe AbmM | 90%a | - | - | - | - |
| DT-treated 57Fe-ARS-cluster variants | 64%a | 36%b | - | - | - |
| DT-treated 57Fe-AbmM | 64%a | 30%b | ≤ 5% | - | - |
| Reacted 57Fe-AbmM | 65%a | 18%b | 17% | - | - |
| DT-treated 57Fe-PT-56Fe-AbmM (AUX-labelled) | 90% | - | - | - | - |
| Reacted 57Fe-PT-56Fe-AbmM (AUX-labelled) | 93% | - | - | - | - |
| DT-treated 56Fe-PT-57Fe-AbmM (RS-labelled) | 29% | 36%b | - | 12% | 11% |
| Reacted 56Fe-PT-57Fe-AbmM (RS-labelled) | 34% | - | - | 23% | 27% |
a
Two doublets within uncertainty or asymmetric doublet are employed.
b
Site II and III are fixed to 1:1 ratio. The best simulation requires the use of the slightly different parameters (δ = 0.75 mm/s, |ΔEQ | = 3.16 mm/s) from the listed parameters for FeII_A site in Extended Data Table 2.