4AT0

The crystal structure of 3-ketosteroid-delta4-(5alpha)-dehydrogenase from Rhodococcus jostii RHA1

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		5.6		CRYSTALS WERE OBTAINED FROM 200 MM AMMONIUM ACETATE, 100 MM SODIUM CITRATE PH 5.6 AND 30%(W/V) PEG 4000

Crystal Properties
Matthews coefficient	Solvent content
3.06	59.8

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 99.233	α = 90
b = 114.308	β = 90
c = 110.161	γ = 90

Symmetry
Space Group	C 2 2 21

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	ADSC QUANTUM 210r	MIRRORS	2007-02-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM16		ESRF	BM16

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.6	49.6	97	0.08	22.6	11.1		80282			16

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.6	1.69	83.8		0.32	4.7	6.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRIES 1D4C, 1E39, 1KF6, 1NEK, 1ZOY	1.6	39.65	75998	4019	96.94	0.15875	0.15786	0.17539	RANDOM	16.802

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]
-0.02					0.02

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.61
r_dihedral_angle_4_deg	15.35
r_dihedral_angle_3_deg	11.26
r_dihedral_angle_1_deg	5.367
r_angle_refined_deg	1.436
r_angle_other_deg	0.869
r_nbtor_refined	0.307
r_nbd_other	0.3
r_symmetry_vdw_refined	0.249
r_nbd_refined	0.225
r_nbtor_other	0.142
r_xyhbond_nbd_refined	0.142
r_symmetry_hbond_refined	0.134
r_chiral_restr	0.102
r_bond_refined_d	0.012
r_gen_planes_refined	0.008
r_bond_other_d	0.002
r_gen_planes_other	0.001
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_it
r_mcbond_other
r_mcangle_it
r_mcangle_other
r_scbond_it
r_scbond_other
r_scangle_it
r_scangle_other
r_long_range_B_refined
r_long_range_B_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3598
Nucleic Acid Atoms
Solvent Atoms	608
Heterogen Atoms	68

Software

Software
Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
PHASER	phasing