| X-RAY DIFFRACTION |
8.0 |
293.15 |
Crystals were obtained on a Junior Clover plate (Jena Bioscience, Germany) under an anaerobic atmosphere of 97:3% N2:H2. The crystallization reservoir (100 ul) contained 20% w/v Polyethylene glycol 3,350 and 200 mM tri-Potassium citrate. 1 ul of purified protein solution at 22 mg/mL in 25 mM Tris/HCl, 10% v/v glycerol and 2 mM dithiothreitol was mixed with 1 ul of the crystallization solution.
The crystal was exposed to air for 10 min, and was then soaked in the crystallization solution supplemented with 20% v/v glycerol prior freezing. |