4.99.1.3 - 649817, 650801 4.99.1.3 hanging drop vapor diffusion method, using 100 mM Tris-HCl. pH 8.5, containing 2.0 M ammonium sulfate 716791 4.99.1.3 hexagonal crystals are grown using the hanging-drop method, crystals are in space group P6(3)22 with cell dimensions a = b = 128.08 A, c = 85.44 A 644511 4.99.1.3 in complex with cobalt and sirohydrochlorin, to 1.7 A resolution 747658 4.99.1.3 using the sitting drop vapor diffusion technique in 96-well plates, in two different crystal forms consisting of a central mixed b-sheet flanked by four alpha helices 681658, 682635