| X-RAY DIFFRACTION |
7.5 |
298 |
Protein was dialyzed against buffer containing 15 mM Tris pH 7.5, 50 mM NaCl, 4 mM MgCl2, 10 mM Na Citrate and 5 % glycerol and the inhibitor nicotinaldehyde was added at a 4:1 ratio. The protein (5 mg/ml) was mixed with mother liquor (1.6 M NaOAc, 10 % ethylene glycol, 0.1 M HEPES pH 7.4) at a 1:1 (vol) ratio. Crystals were formed by hanging drop vapor diffusion. Crystals were transferred to a cryoprotectant solution (1.5 M NaOAc, 20% ethylene glycol, 0.1M HEPES pH 7.4) and flash-frozen in liquid nitrogen, VAPOR DIFFUSION, HANGING DROP, temperature 298K |