Figure 3
The phased anomalous difference (F+ − F−) map shows the accuracy of the anomalous difference measurements collected on beamline I23 using a wavelength of 3.1 Å. The map is contoured around the sulfur-containing residues (a) methionine and (b) cysteine at 3.5σ. The phases were calculated from a molecular-replacement solution using the final (high-resolution) structure as the search model. (Image from PyMOL.) |