Experiment: 5AI1

Crystal structure of ketosteroid isomerase containing Y32F, D40N, Y57F and Y119F mutations in the equilenin-bound form

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1OPY	PDB ENTRY 1OPY

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		4.6		0.1M SODIUM ACETATE (PH 4.5), 0.6M AMMONIUM ACETATE, 30% PEG 4,000

Crystal Properties
Matthews coefficient	Solvent content
2.13	42.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 35.195	α = 90
b = 95.769	β = 90
c = 73.534	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 315r	MIRRORS	2014-12-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	PAL/PLS BEAMLINE 5C (4A)		PAL/PLS	5C (4A)

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	2.1	30.13	94.4	0.08	23	7.6		7126			26.51

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	2.1	2.14	89.6		0.34	2.9	4.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PDB ENTRY 1OPY	2.103	30.134	1.5	7121	712	94.34	0.1971	0.1901	0.1931	0.2594	0.2616

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
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.938
f_angle_d	1.134
f_chiral_restr	0.046
f_bond_d	0.008
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	921
Nucleic Acid Atoms
Solvent Atoms	58
Heterogen Atoms	20

Software

Software
Software Name	Purpose
PHENIX	refinement
HKL-2000	data reduction
SCALEPACK	data scaling
PHASER	phasing