title: Preliminary x-ray diffraction characterization of crystalline rat liver dihydropteridine reductase.
abstract: The pyridine dinucleotide-dependent dihydropteridine reductase from rat liver has been crystallized from various inorganic salts and from polyethylene glycol/ethanol mixtures using a vapor diffusion method. The crystal form most amenable to x-ray diffraction studies is monoclinic, space group C2, a = 224.3 A, b = 46.5 A, c = 94.9 A, beta = 99.0 degrees with two molecules in the crystallographic asymmetric unit. These crystals grow to over 1 mm in length, diffract to at least 2.3 A resolution, and are relatively stable to irradiation with x-rays.
mesh_terms: D000818:Animals; D003460:Crystallization; D004093:Dihydropteridine Reductase; D006863:Hydrogen-Ion Concentration; D008099:Liver / Q000201:enzymology*; D009247:NADH, NADPH Oxidoreductases; D051381:Rats; D014961:X-Ray Diffraction
chemical_list: D004093:Dihydropteridine Reductase; D009247:NADH, NADPH Oxidoreductases