| X-RAY DIFFRACTION |
8.0 |
291 |
Required amount of DNA to 2:1 (protein:DNA) stoichiometry was diluted in [20 mM Tris (pH8.0), 500 mM NaCl] and protein was added to final concentration of 5 mg/mL.
Crystals of MpARF2-DBD:DNA were obtained in 0.2 M Sodium formate, 20% w/v Polyethylene glycol 3,350 by the sitting-drop vapor-diffusion method at 18 deg. C, in drops of 1 uL + 1 uL (protein:reservoir).
Cube-shaped crystals appeared in less than a week. Cryo-cooling in liquid nitrogen was carried out using a cryo-protecting solution containing reservoir solution supplemented with 10% glycerol |