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Figure 7
Effect of adding one valence electron on the structure-factor intensities. Starting with the published PDB structure (1m2a), and using the anomalous scattering factors of Fig. 1[link], the structure factors (including bulk solvent) are calculated at 7122 eV for the oxidized and reduced forms of ferredoxin, for Miller indices in the 2.1–2.5 Å resolution range. The plot shows the change upon reduction of the structure-factor intensity |Ftrue(λ = 7122 eV)|2 normalized by the average intensity in that range. The r.m.s. difference is 1.7%, sizable enough to permit the modeling of anomalous scattering factors demonstrated in Table 3[link]. A number of intensities (173 of the total 8 234) change more than 5%.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 76| Part 2| February 2020| Pages 176-192
https://doi.org/10.1107/S2059798320000418
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