| X-RAY DIFFRACTION |
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THE SITTING DROPS CONTAINED 1 ML PROTEIN, 5.35 MG/ML, WITH A FINAL CONCENTRATION OF 0.64 MM OF FOSMIDOMYCIN, DISSOLVED IN 10 MM TRIS PH 8.0, AND 1 ML CRYSTALLIZATION BUFFER (40% ETHYLENE GLYCOL, 2 MM MGSO4, 20 MM DTT, 0.2 MM EDTA, AND 100 MM ACETATE PH 5.0). THE RESERVOIR SOLUTION CONSISTED OF A MIXTURE BETWEEN THE CRYSTALLIZATION BUFFER, AND THE BUFFER USED IN THE FINAL STEPS OF THE PROTEIN PURIFICATION (75 MM NACL, 10 MM TRIS-HCL PH 7.5, 20% ETHYLENE GLYCOL, 1 MM MGSO4, 10 MM DTT, 0.1 MM EDTA, AND 50 MM ACETATE PH 5.0). BEFORE THE CRYSTALS WERE FLASH-COOLED IN LIQUID NITROGEN THEY WERE TRANSFERRED TO A DROP WITH THE RESERVOIR SOLUTION COMPLEMENTED WITH AN ADDITIONAL 10% ETHYLENE GLYCOL, AND 1 MM FOSMIDOMYCIN. |
