3CPO

Crystal structure of ketosteroid isomerase D40N with bound 2-fluorophenol

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	2INX	PDB entry 2INX

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7	298	AMMONIUM SULPHATE 1.4 M, 2-PROPANOL 5-7%, PROTEIN CONCENTRATION 25 MG/ML, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.09	41.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.347	α = 90
b = 95.013	β = 90
c = 72.376	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 315		2007-01-01		SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL9-1	0.97952	SSRL	BL9-1

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	1.24	50	95.3	0.053	14.7	11.3	33296	33296		-3

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)
	1.24	1.28	67.7		0.5	2	5.4	2335

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 2INX	1.24	36.19	33253	33253	1669	95.25	0.168	0.168	0.166	0.2	RANDOM	22.999

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]
1.54			-1.29		-0.25

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	31.174
r_dihedral_angle_4_deg	20.873
r_dihedral_angle_3_deg	14.377
r_sphericity_free	11.727
r_sphericity_bonded	8.456
r_dihedral_angle_1_deg	6.33
r_scangle_it	5.398
r_mcangle_it	4.924
r_scbond_it	4.252
r_mcbond_it	3.848
r_rigid_bond_restr	3.049
r_angle_refined_deg	1.945
r_nbtor_refined	0.327
r_symmetry_vdw_refined	0.252
r_nbd_refined	0.233
r_xyhbond_nbd_refined	0.212
r_symmetry_hbond_refined	0.184
r_chiral_restr	0.148
r_bond_refined_d	0.022
r_gen_planes_refined	0.01

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	1048
Nucleic Acid Atoms
Solvent Atoms	73
Heterogen Atoms	8

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
ADSC	data collection
HKL-2000	data reduction
HKL-2000	data scaling