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)
Type	Source	Accession Code	Details
experimental model	PDB	3QWF	pdb entry 3QWF

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.9	293	30% (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 coefficient	Solvent content
2.19	43.95

Crystal Data

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

Symmetry
Space Group	P 1 21 1

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	100	CCD	MAR CCD 165 mm	PT COATED TOROIDAL MIRROR	2008-08-05	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ELETTRA BEAMLINE 5.2R	1.0	ELETTRA	5.2R

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)	Redundancy	Number Reflections (All)	Number Reflections (Observed)	Observed Criterion Sigma (F)	Observed Criterion Sigma (I)	B (Isotropic) From Wilson Plot
1	2.5	34.29	98	0.078	0.078	11.3	3.4	34093	34093		-3	40.3

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)	Redundancy	Number Unique Reflections (All)
1	2.5	2.63	91.6		0.347	0.347	3	2.8	12947

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	pdb entry 3QWF	2.5	33.86	34071	34071	1710	98	0.1646	0.1646	0.16104	0.23264	RANDOM	30.013

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]
		-0.01	0.01		-0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.859
r_dihedral_angle_3_deg	14.548
r_dihedral_angle_4_deg	11.483
r_dihedral_angle_1_deg	5.435
r_scangle_it	1.565
r_angle_refined_deg	1.111
r_scbond_it	0.92
r_mcangle_it	0.559
r_mcbond_it	0.286
r_chiral_restr	0.077

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.859
r_dihedral_angle_3_deg	14.548
r_dihedral_angle_4_deg	11.483
r_dihedral_angle_1_deg	5.435
r_scangle_it	1.565
r_angle_refined_deg	1.111
r_scbond_it	0.92
r_mcangle_it	0.559
r_mcbond_it	0.286
r_chiral_restr	0.077
r_bond_refined_d	0.008
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7858
Nucleic Acid Atoms
Solvent Atoms	329
Heterogen Atoms	288

Software

Software
Software Name	Purpose
MAR345	data collection
MOLREP	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.