Table 1.

Data collection parameters

Data collection	Wave length, Å	No. of reflections measured (unique)	% complete all (last shell)	Rmerge, %, all (last shell)	Phasing power λ1/λi (Friedel)
MAD*	λ1  = 1.1000	116,513 (16,209)	90.4 (88.1)	6.4 (26.7)	— (0.52)
	λ2  = 0.9796	112,523 (15,649)	87.7 (83.0)	6.7 (30.2)	2.33 (2.40)
	λ3  = 0.9794	116,198 (15,811)	88.2 (82.3)	8.3 (38.4)	1.93 (2.16)
	λ4  = 0.9500	113,313 (15,595)	86.7 (80.9)	7.1 (36.2)	1.08 (1.30)
WT†	λ  = 1.1004	186,600 (43,834)	99.4 (96.3)	6.8 (44.9)	—

^*Maximum resolution 2.5 Å (last shell 2.59 − 2.50 Å). 

^†Maximum resolution 1.85 Å (last shell 1.92 − 1.85 Å); figure of merit, 0.64.