Crystals of FlgE79cj from C. jejuni obtained in (a) 1.5 M ammonium sulfate, 0.1 M Tris–HCl pH 8.5; (b) 20% PEG 8K, 0.1 M NaCl, 0.1 M CAPS pH 10.5; (c) 10% PEG 10K, 4% dioxane, 0.1 M citrate pH 5.5; (d) 30% PEG 400, 0.1 M CHES pH 9.5; (e) 1.5 M ammonium sulfate, 50 mM NaCl, 10% 2-propanol, 0.1 M CHES pH 9.5; (f) 0.8 M K2HPO4, 5% 2-propanol, 0.1 M acetate pH 4.5; (g) 1.4 M MgSO4, 50 mM NaCl, 6 mM CdSO4, Tris–HCl pH 8.5; (h) 1.2 M K2HPO4, 50 mM NaCl, 5 mM Tl2SO4, 12% DMSO, 50 mM MES pH 6.0. The scale bar on the bottom right represents 0.1 mm.