6.3.4.21	by molecular replacement at a resolution of 2.9 A, in its ligand-free form. The enzyme consists of two domains and functions as a dimer with the active site located at the interface of the monomers. NaPRTase acks a tunnel that, in nicotinamide phosphoribosyltransferase EC 2.4.2.12, represents the binding site of inhibitor FK866	744914	
6.3.4.21	recombinant detagged wild-type and selenomethionine-labeled enzymes, hanging drop vapour diffusion method, room temperature, 0.001 ml protein solution mixed with equal volume of well solution containing 0.2 M ammonium acetate, 0.1 M Tris-HCl, pH 8.5, 45% 2-methyl-2,4-pentanediol, 1 week, crystallization condition screening using sitting drop vapour diffusion at room temperature, iridium complexed, X-ray diffraction structure determination and analysis at 2.8 A resolution	659469	
6.3.4.21	recombinant selenomethionine-labeled enzyme, 10-30 mg/ml, in 10 mM Tris, pH 7.8, 150 mM NaCl, nanodroplet vapour diffusion method, 4°C, reservoir solution contains 6-16% PEG 5000 monomethyl ether, 0.06 M MES, and 0.04 M NaMES, pH 6.0, usage of 15-20% ethylene glycol as cryoprotectant, X-ray structure determination and analysis at 1.75 A resolution	660524