1.3.1.56 - 655730 1.3.1.56 crystal structure analysis of PpBphB, PDB ID 3ZV5, overview 745581 1.3.1.56 purified recombinant detagged BphB, sitting drop vapour diffusion method, 0.001 ml of 10 mg/ml protein in 20 mM HEPES, pH 8.0, 10% glycerol, and 300 mM NaCl, are mixed with 0.001 ml of reservoir solution containing 0.2 M sodium malonate, pH 6.0, and 20% PEG 3350, 20% glycerol is used as cryoprotectant, X-ray diffractiuon structure determination and analysis at 2.8 A resolution 710743 1.3.1.56 the crystal structure of the NAD+-enzyme complex is determined by molecular replacement and refined to an R-value of 17.9% at 2.0 A 728769 1.3.1.56 the crystal structures of the apoenzyme, the binary complex with NAD+, and the ternary complexes with NAD-2,3-dihydroxybiphenyl and NAD+-4,4'-dihydroxybiphenyl are determined at 2.2-, 2.5-, 2.4-, and 2.1 A resolutions, respectively. A series of conformational changes in the substrate binding loop that occur during ligand binding are identified 725444