4QDC

Crystal structure of 3-ketosteroid-9-alpha-hydroxylase 5 (KshA5) from R. rhodochrous in complex with FE2/S2 (INORGANIC) CLUSTER

X-RAY DIFFRACTION

Starting Model(s)

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

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	4.2	294	0.8 M NaH2PO4, 0.2 M K2HPO4, 2% PEG-3000, 20 mM CHES, 0.1 M phosphate-citrate, pH 4.2, VAPOR DIFFUSION, HANGING DROP, temperature 294K

Crystal Properties
Matthews coefficient	Solvent content
4.03	69.44

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 162.183	α = 90
b = 162.183	β = 90
c = 46.969	γ = 120

Symmetry
Space Group	P 63

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	Rayonix MX300HE CCD X-ray detector	mirrors	2012-02-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08B1-1	0.92	CLSI	08B1-1

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	1.9	44.54	88.1	0.124	18	9.3		49275

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	1.9	1.94	45.9		0.013	2	7.9	1620

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	2zyl	1.9	140.45	49074	2459	87.44	0.1882	0.1866	0.217	RANDOM	30.161

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]
0.26	0.13		0.26		-0.84

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.088
r_dihedral_angle_4_deg	18.778
r_dihedral_angle_3_deg	13.07
r_dihedral_angle_1_deg	6.985
r_mcangle_it	5.329
r_mcbond_it	4.17
r_mcbond_other	4.162
r_angle_refined_deg	1.68
r_angle_other_deg	0.816
r_chiral_restr	0.097

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.088
r_dihedral_angle_4_deg	18.778
r_dihedral_angle_3_deg	13.07
r_dihedral_angle_1_deg	6.985
r_mcangle_it	5.329
r_mcbond_it	4.17
r_mcbond_other	4.162
r_angle_refined_deg	1.68
r_angle_other_deg	0.816
r_chiral_restr	0.097
r_bond_refined_d	0.014
r_gen_planes_refined	0.008
r_bond_other_d	0.001
r_gen_planes_other	0.001

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2978
Nucleic Acid Atoms
Solvent Atoms	276
Heterogen Atoms	50

Software

Software
Software Name	Purpose
Aimless	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
MxDC	data collection
XDS	data reduction

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.