4.2.1.96 - 4.2.1.96 hanging-drop vapor diffusion method at 4°C, 1.6 A resolution crystal structure, space group P3(1)21, unit cell length: a = b = 57.92 A, c = 114.63 A 4.2.1.96 purified recombinnat detagged mutant T51S enzyme, 13 mg/ml protein from 0.1 M HEPES-Na, pH 7.5, 2% v/v PEG 400, and 2.0 M ammonium sulfate, X-ray diffraction structure determination and analysis at 1.8 A resolution 4.2.1.96 recombinant enzyme 4.2.1.96 sitting drop vapour diffusion, 2V6S: 1.4 M ammonium sulfate, 1 M lithium sulfate, 2 mM 7,8-dihydrobiopterin, pH 7.6, space group P 43 21 2, resolution 2.22 A, complex with substrate-like ligand 7,8-dihydrobiopterin TgPCD:BH2 complex 2V6T: 0.4 M potassium-sodium tartrate, pH 7.6, space group P 43 21 2, resolution 3.1 A, apo-enzyme 2V6U: 1.4 M ammonium sulfate, 1 M lithium sulfate, pH 7.6, space group P 43 21 2, resolution 1.6 A