Table 2. Results of the twinning analysis of Mtb-DapE crystals 1 and 2.

	Theoretical values
Parameter	Untwinned	Perfect twin	Crystal 1	Crystal 2
Wilson ratio and moments for acentric reflections
I 2/I 2	2	1.5	1.814	1.945
F 2/F 2	0.785	0.885	0.831	0.798
|E 2 1|	0.736	0.541	0.642	0.711
Padilla and Yeates statistics (L-test)
|L|	0.5	0.375	0.432	0.483
L 2	0.333	0.2	0.258	0.312
Yeates statistics (H-test)
H	0.5	0	0.050	0.329
H 2	0.33	0	0.005	0.176
Estimated twinning fraction via
Cumulative distribution of H			0.457	0.156
Britton plot			0.441	0.152
L-test			0.442	0.022
Twinning operator			h, k, h + l	h, k, h + l