| X-RAY DIFFRACTION |
? |
293 |
CRYSTALS WERE GROWN BY MIXING 2 UL PROTEIN (20-21 MG/ML) WITH 2 UL RESERVOIR SOLUTION AND EQUILIBRATING AT 20 C AGAINST 500 UL RESERVOIRS CONTAINING 1.3- 1.5 M SODIUM MALONATE PH 6.8, 1% (VOL/VOL) PEG 400 AND 4-10% (VOL/VOL) GLYCEROL, THE BEST CRYSTALS BEING OBTAINED WHEN THE RESERVOIR WAS OVERLAID WITH 100 UL OF A 1:1 MIXTURE OF PARAFFIN AND SILICONE OIL (MOLECULAR DIMENSIONS). CRYSTALS WERE CRYOPROTECTED BY BRIEF IMMERSION IN 2.1 M SODIUM MALONATE, 1% (VOL/VOL) PEG 400 AND 5% (VOL/VOL) GLYCEROL. |