| X-RAY DIFFRACTION |
5 |
298 |
Protein was co-crystallized with NADP+ (Sigma) and inhibitor (ratios protein/coenzyme/inhibitor = 1/2/2). Previously equilibrated (ammonium citrate buffer, PEG 6000 (15%)) hanging drops were seeded with stock seed solutions diluted 100 times. Cryofreezing was carried out through quick transfers into a stabilization solution (25% PEG 6000), then into a cryo-protecting solution (40% PEG 6000) and finally into either liquid nitrogen or ethane, VAPOR DIFFUSION, HANGING DROP, temperature 298K |