Mass: 18.015 Da / Num. of mol.: 293 / Source method: isolated from a natural source / Formula: H2O
Has ligand of interest
N
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Experimental details
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Experiment
Experiment
Method: X-RAY DIFFRACTION / Number of used crystals: 1
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Sample preparation
Crystal
Density Matthews: 2.6 Å3/Da / Density % sol: 52.79 % / Description: Hexagonal plates
Crystal grow
Temperature: 293.15 K / Method: vapor diffusion, sitting drop / pH: 7.6 Details: Protein was crystallized fresh without any freezing step by using the sitting drop method on a 96-Well MRC 2-Drop Crystallization Plates in polystyrene (SWISSCI, United Kingdom) under ...Details: Protein was crystallized fresh without any freezing step by using the sitting drop method on a 96-Well MRC 2-Drop Crystallization Plates in polystyrene (SWISSCI, United Kingdom) under anaerobic conditions (N2:H2, gas ratio of 97:3). The enzyme was crystallized at 15 mg/ml in 25 mM Tris/HCl pH 7.6, 10% v/v glycerol, 150 mM NaCl, and 2 mM dithiothreitol. The crystallization reservoir contained 90 uL of mother liquor (20 % w/v polyethylene glycol 3,350 and 100 mM potassium sodium tartrate), the crystallization drop contained a mixture of 0.55 uL protein and 0.55 uL mother liquor. Crystals were soaked in the mother liquor supplemented with 25% v/v ethylene glycol prior to freezing in liquid nitrogen.
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Data collection
Diffraction
Mean temperature: 100 K / Serial crystal experiment: N
Method to determine structure: MOLECULAR REPLACEMENT / Resolution: 2.43→58.89 Å / Cross valid method: FREE R-VALUE / σ(F): 205.88 / Phase error: 34.94 / Stereochemistry target values: TWIN_LSQ_F Details: The structure was refined by applying translation libration screw model (TLS) and adding riding hydrogens. In addition, this dataset was refined by applying the following twin operator: ...Details: The structure was refined by applying translation libration screw model (TLS) and adding riding hydrogens. In addition, this dataset was refined by applying the following twin operator: 1/2h+1/2k,3/2h-1/2k,-l. Hydrogens were omitted in the final deposited model.
Rfactor
Num. reflection
% reflection
Rfree
0.2682
7869
7.69 %
Rwork
0.2294
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obs
0.233
102286
86.6 %
Solvent computation
Shrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL