| X-RAY DIFFRACTION |
8.50 |
285 |
MES 50mM PH6.00, PEG MME 550 32% AT 285K, The Protein
was Concentrated At 2 MG/ML In MES-NAOH PH 6.00 (20 mM),
DTT (5 mM) And Mixed With An Equal Volume Of The Reservoir
Solution Containing PEG MME 550 (32%), MES PH 6.00 (40 mM),
DTT (5 mM). Crystal Size (300X40X40 microM3) In 20microL
Sitting Drops. Crystals Transferred In Reservoir Solutions
Whose PH Was Increased From 6.0 To 8.5 By Steps Of 0.5 PH
Units (The Soaking Time In Each Solution Was 12 Hours).
Magnesium Derivative Was Obtained By Soaking For 24 Hours
Protein Crystals In The Reservoir Solution Supplemented With
20 Mm MgCl2 (PH 8.50).Crystals Were Frozen In Liquid Propane
After Soaking For A Few Seconds In Peg MME 550 (50%), Tris PH
8.5 (40 Mm)., VAPOR DIFFUSION, HANGING OR SITTING-DROP |
