X-RAY DIFFRACTION |
5.6 |
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Crystallization was performed by the vapor diffusion method using hanging drops (4 L protein solution mixed with 4 L (0.75 - 1.00) M NaCl - 0.1 M MES - 0.1 M Na/K PO4, pH 5.6 - 6.2) suspended over 1 mL reservoir solutions of (1.25 - 1.50) M NaCl - 0.1 M MES - 0.1 M Na/K PO4 - 5 mM -mercaptoethanol, pH 5.6-6.2. The trays were set at 4oC for 5-7 days to control nucleation, followed by incubation for 3 weeks at 12oC to maximize crystal growth., VAPOR DIFFUSION, HANGING DROP, temperature 277, then 285K |