Figure 1
Images of glucose isomerase crystallization droplets. Column 1 shows the transmission images, column 2 the magnitude of birefringence and column 3 the orientation of the birefringence. The concentration of the crystallization agent (ammonium sulfate) was reduced through rows A–E. All the images were taken with a low-power magnification objective (4×). The same threshold (|sinδ| > 0.05) was used for all images. |