Figure 2
Pseudo-precession photographs extracted using VIEWHKL from the processed data of Mycobacterium tuberculosis FBPase crystals (space group P6122, unit-cell parameters a = b = 129.8, c = 141.2 Å). (a) hk0 plane exhibiting 6mm symmetry. (b) 0kl plane with the 00l reflections vertical; notice the systematic extinctions 00l = 6n demonstrating the presence of the P61 (or P65) screw axis (Wolf et al., 2018). (c) h0l plane (00l reflections vertical) as rendered by the software available in Phenix (rainbow mode) showing the systematic absences (empty circles) along the main screw axis (different crystal but same space group). Reflection intensity ranges from blue to red (weak to strong). |