2.4.99.17	nanodroplet vapor diffusion method, using 12% (w/v) polyethylene glycol 4000, 0.1 M citric acid at pH 5.0	
2.4.99.17	sitting drop vapor diffusion method, using 100 mM Tris/HCl (pH 8.0), 200 mM (NH4)2SO4, 3 mM dithiothreitol, and 25-29% (w/v) PEG 4000