| X-RAY DIFFRACTION |
6.0 |
293 |
Crystallization assays were performed following the sitting-drop vapor diffusion method. Reservoir solutions were prepared by a Tecan robot and 200-nL crystallization drops were dispensed on 96x2-well MRC plates (Wilden / Innovadyne) by a Cartesian nanodrop robot (Genomic Solutions) at the joint IBMB-CSIC/IRB/Barcelona Science Park High-Throughput Crystallography Platform (PAC). Best crystals as thin reddish prisms appeared in a Bruker steady-temperature crystal farm at 20 C using protein solution (26mg/mL in 5mM Tris/HCl, pH 8.0) and 2.4M (NH4)2SO4, 0.1M MES, pH6.0 as reservoir solution and D(+)-glucose monohydrate as additive (relative volumetric ratios 1:1:0.35). These conditions were successfully scaled up to the microliter range with Cryschem crystallization dishes (Hampton Research). VAPOR DIFFUSION, SITTING DROP, temperature 293K |