The NeXtal Evolution μplate ensures superior results compared to those obtained with plates from other suppliers. Screen A: 0.1 M Tris, pH 8.5, 35% MPD, 0.2 M ammonium sulfate; Screen B: 0.1 M sodium cacodylate, pH 6.5, 35% isopropanol, 0.2 M magnesium chloride. Solutions were pipetted on central or border wells of the microplate.