Table 1. Crystallization conditions.

	Lysozyme	Thermolysin
Protein	20–100 mg/ml	350 mg/ml
Buffer	20–100 mM NaAc pH 4.6	45% DMSO, 50 mM Tris pH 7.2–7.5, 1.4 M CaCl2
Reservoir solution	4%–8% NaCl, 10% Ethylene glycol	Water
Cryo-protectant	None	20% Ethylene glycol, 9% DMSO, 50 mM Tris pH 7.2–7.5, 0.28 M CaCl2
Ligand Concentration	50 mM	100 mM