3BUR

Crystal structure of Delta(4)-3-ketosteroid 5-beta-reductase in complex with NADP and TESTOSTERONE. RESOLUTION: 1.62 A.


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 1J96 

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.527710-20% WT/VOL PEG 4000; 1O% ISOPROPANOL; 100 MM TRIS PH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
Crystal Properties
Matthews coefficientSolvent content
2.3647.86

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 49.819α = 90
b = 109.985β = 90
c = 128.915γ = 90
Symmetry
Space GroupP 21 21 21

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDADSC QUANTUM 315KOHZU: Double Crystal Si(111)2007-09-08MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONALS BEAMLINE 8.2.21.00ALS8.2.2

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)Net I Over Average Sigma (I)RedundancyNumber Reflections (All)Number Reflections (Observed)Observed Criterion Sigma (F)Observed Criterion Sigma (I)B (Isotropic) From Wilson Plot
11.6250960.10320.34.5860378603716.7
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
11.621.68900.362.73.17952

Refinement

Statistics
Diffraction IDStructure Solution MethodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENT1J961.6250816638166343060.2280.2280.248RANDOM
Temperature Factor Modeling
Anisotropic B[1][1]Anisotropic B[1][2]Anisotropic B[1][3]Anisotropic B[2][2]Anisotropic B[2][3]Anisotropic B[3][3]
RMS Deviations
KeyRefinement Restraint Deviation
s_non_zero_chiral_vol0.044
s_from_restr_planes0.025
s_angle_d0.023
s_anti_bump_dis_restr0.016
s_bond_d0.007
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms5254
Nucleic Acid Atoms
Solvent Atoms498
Heterogen Atoms198

Software

Software
Software NamePurpose
ADSCdata collection
PHASERphasing
SHELXL-97refinement
HKL-2000data reduction
SCALEPACKdata scaling