Expression, purification, crystallization and preliminary X-ray crystallographic analysis of human β-galactosidase

Usui, K.; Ohto, U.; Ochi, T.; Shimizu, T.; Satow, Y.

doi:10.1107/S1744309111047920

Figure 3
Image showing the alternative lattices. (a) Diffraction pattern showing the a*b* planes, with the area shown in the lower panels indicated by a white box. Predicted reflection positions of the alternative lattices twin domain 1 and twin domain 2 are shown in the lower left and right panels, respectively. (b) Schematic representation of the two alternative lattices of the [beta]

-Gal crystal viewed along the b axis. The real and reciprocal lattices are indicated in black and red, respectively.