| X-RAY DIFFRACTION |
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277 |
MAGE-A3 MHD was buffer-exchanged into 25 mM HEPES, 150 mM NaCl, pH 7.5 buffer using 10 kDa MWCO Centricon and concentrated to 5 mg/mL. MAGE-A3 MHD was crystallized using the hanging drop vapor diffusion method in 16% PEG8000, 40 mM potassium phosphate, 20% glycerol. For each hanging drop, 2 ul of protein solution was mixed with an equal volume of well solution and incubated at 4 C. Once the crystals reached their maximum size, they were transferred to a cryo-protectant solution (well solution containing 30% glycerol and 1 mM KL861) and soaked with KL861 for 3.5 hours. The soaked crystals were flash-frozen in liquid nitrogen. |
