| X-RAY DIFFRACTION |
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293 |
The holoenzyme crystals were first grown via a hanging drop vapor diffusion method. Each drop contained 2 uL of protein and 2 uL of well solution. The best crystallization condition contained 10% PEG 6000, 200 mM NaCl, 10% glycerol, 100 mM Tricine pH 7.8. Once the holoenzyme crystals reached their maximum size, 2 uL of 16 mM SS-1-148 was added to the drop with crystals. The crystals were soaked for 1 h, transferred into cryoprotective solution (well solution supplemented with 30% glycerol), and then flash-frozen in liquid nitrogen. |
