| X-RAY DIFFRACTION |
8.5 |
293 |
THE CK2ALPHA' SOLUTION AFTER PROTEIN PURIFICATION (5 MG/ML CK2ALPHA' IN 500 MM NACL, 25 MM TRIS/HCl, PH 8.5) WAS MIXED IN 1:10 VOLUME RATIO WITH 10 MM SOLUTION OF THE INHIBITOR MB002 IN DMSO. THIS SOLUTION WAS MIXED IN 2:1 RATIO WITH RESERVOIR SOLUTION [900 MM LICL, 28 % (W/V) PEG 6000, 250 MM TRIS/HCL, PH 8.5] IN SITTING DROP PLATES (VAPOUR DIFFUSION). THE CRYSTAL GROWTH WAS INDUCED BY MICROSEEDING. THE CRYSTALS WERE OPTIMIZED BY MACROSEEDING. A CRYSTAL WAS PURGED TWICE WITH RESERVOIR SOLUTION BEFORE ADDING SGC-CK2-1 (10 MM IN DMSO) TO A FINAL CONCENTRATION OF 2.5 MM TO THE CRYSTAL MOTHOR LIQUOR FOR EXTENSIVE SOAKING AND REPLACEMENT OF THE INITIAL INHIBITOR MB002 BY SGC-CK2-1. ALL STEPS WERE PERFORMED AT A TEMPERATURE OF 293 K. |
