3.4.15.6 | 12 mg/ml protein, 1.6 M ammonium sulfate, 0.1 M MES, 12% v/v dioxane, pH 6.6, vapor diffusion, sitting drop, temperature 293 K, space group C2221, resolution 1.5 A, the native crystal is grown in the presence of 5 mM cyanophycinase product, but no electron density for the product is interpretable in the final map |