3QWI

Crystal structure of a 17beta-hydroxysteroid dehydrogenase (holo form) from fungus Cochliobolus lunatus in complex with NADPH and coumestrol


X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
TypeSourceAccession CodeDetails
experimental modelPDB 3QWFpdb entry 3QWF

Crystallization

Crystalization Experiments
IDMethodpHTemperatureDetails
1VAPOR DIFFUSION, HANGING DROP7.929330% (W/V) PEG 2000 MME, 0.1M KCNS, 15% (V/V) Crystals soaked in: 30% (W/V) PEG 2000 MME, 0.1M KCNS, 15% (V/V) ETHYLENE GLYCOLE, 5% (V/V) DMSO, 2MM COUMESTROL, PH 7.9, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 293K
Crystal Properties
Matthews coefficientSolvent content
2.1943.95

Crystal Data

Unit Cell
Length ( Å )Angle ( ˚ )
a = 63.41α = 90
b = 116.81β = 103.14
c = 70.43γ = 90
Symmetry
Space GroupP 1 21 1

Diffraction

Diffraction Experiment
ID #Crystal IDScattering TypeData Collection TemperatureDetectorDetector TypeDetailsCollection DateMonochromatorProtocol
11x-ray100CCDMAR CCD 165 mmPT COATED TOROIDAL MIRROR2008-08-05MSINGLE WAVELENGTH
Radiation Source
ID #SourceTypeWavelength ListSynchrotron SiteBeamline
1SYNCHROTRONELETTRA BEAMLINE 5.2R1.0ELETTRA5.2R

Data Collection

Overall
ID #Resolution (High)Resolution (Low)Percent Possible (Observed)R Merge I (Observed)R Sym 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
12.534.29980.0780.07811.33.43409334093-340.3
Highest Resolution Shell
ID #Resolution (High)Resolution (Low)Percent Possible (All)Percent Possible (Observed)R Merge I (Observed)R-Sym I (Observed)Mean I Over Sigma (Observed)RedundancyNumber Unique Reflections (All)
12.52.6391.60.3470.34732.812947

Refinement

Statistics
Diffraction IDStructure Solution MethodCross Validation methodStarting modelResolution (High)Resolution (Low)Number Reflections (All)Number Reflections (Observed)Number Reflections (R-Free)Percent Reflections (Observed)R-Factor (All)R-Factor (Observed)R-WorkR-FreeR-Free Selection DetailsMean Isotropic B
X-RAY DIFFRACTIONMOLECULAR REPLACEMENTTHROUGHOUTpdb entry 3QWF2.533.8634071340711710980.16460.16460.161040.23264RANDOM30.013
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]
-0.010.01-0.02
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.859
r_dihedral_angle_3_deg14.548
r_dihedral_angle_4_deg11.483
r_dihedral_angle_1_deg5.435
r_scangle_it1.565
r_angle_refined_deg1.111
r_scbond_it0.92
r_mcangle_it0.559
r_mcbond_it0.286
r_chiral_restr0.077
RMS Deviations
KeyRefinement Restraint Deviation
r_dihedral_angle_2_deg36.859
r_dihedral_angle_3_deg14.548
r_dihedral_angle_4_deg11.483
r_dihedral_angle_1_deg5.435
r_scangle_it1.565
r_angle_refined_deg1.111
r_scbond_it0.92
r_mcangle_it0.559
r_mcbond_it0.286
r_chiral_restr0.077
r_bond_refined_d0.008
r_gen_planes_refined0.004
Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen AtomsNumber
Protein Atoms7858
Nucleic Acid Atoms
Solvent Atoms329
Heterogen Atoms288

Software

Software
Software NamePurpose
MAR345data collection
MOLREPphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling