X-RAY DIFFRACTION |
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293.15 |
Prior to crystallization, the enzyme was incubated with heparin decasaccharide; the composition of this preincubation solution was 5 mg/ml CK2alpha1-335, 1.4 mM Heparin decasaccharide, 340 mM NaCl, 25 mM Tris/HCl, pH 8.5. 4 microliter of this enzyme/heparin mixture was mixed with 1 microliter reservoir solution. The composition of the reservoir solution was 32 % (w/v) PEG4000, 0.2 M Lithium sulfate, 0.1 M Tris/HCl, pH 7.5. As a preparation of X-ray diffraction data collection, the crystals were transferred to a cryo solution composed of 32 % (w/v) PEG4000, 10 % (v/v) glycerol, 0.2 M lithium sulfate, 0.5 mM Heparin decasaccharide, 0.1 M Tris/HCl, pH 7.5. |