3.7.1.17 mutant enzyme S114A, sitting drop vapor diffusion method, using 200 mM KSCN, 24% polyethylene glycol 3.35 K, and 100 mM bis-tris propane, pH 7.0 717815 3.7.1.17 sitting drop vapor diffusion method, using 30% (w/v) PEG 3000, 0.1?M CHES, pH 9.5 717030