| X-RAY DIFFRACTION |
7.5 |
295 |
The crystal was grown by hanging drop in conditions optimized from Hampton Index HT G8 (0.2 M Ammonium acetate, 0.1 M HEPES pH 7.5, 25 % w/v polyethylene glycol 3,350). H157Q Mt PMO9E was first reconstituted with excess copper and buffer exchanged to buffer with 50 mM MOPS and 50 mM HEPES pH 6. 1 ul 30 mg/mL H157Q Mt PMO9E was then mixed with 1 uL with 0.2 M Ammonium acetate, 0.1 M HEPES pH 7.5, and 26 % PEG 3,350 in a hanging drop. Crystals grew within 4 days. The crystal was looped with a 0.1-0.2 mm loop, then cryoprotected for 10 seconds in well solution mixed with cryoprotectants to a final concentration of 8% w/v sucrose, 2% w/v glucose, 8% v/v glycerol, and 8% ethylene glycol |
