| X-RAY DIFFRACTION |
5.0 |
298 |
Crystals of the RNase A-carboplatin adduct have been obtained by soaking experiments where pre-grown monoclinic protein crystals were incubated with an excess of the platinum drug (at a protein to platinum ratio 1:10). Crystals of RNase A were grown by hanging-drop vapor mixing 1 L of RNase A at 20 mg mL-1 with equal volumes of reservoir solution containing 20% PEG4000 and 20 mM sodium citrate buffer pH 5.0 at 298 K. Two weeks after their appearance, crystals were soaked for four days in a solution of Carboplatin dissolved in 10 L of reservoir. At the final, Pt drug:protein concentrations were in 10:1 ratio., VAPOR DIFFUSION, HANGING DROP |