2ZYL

Crystal structure of 3-ketosteroid-9-alpha-hydroxylase (KshA) from M. tuberculosis

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP			VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
3.56	65.46

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 116.2	α = 90
b = 116.2	β = 90
c = 81	γ = 120

Symmetry
Space Group	P 3 2 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	MARMOSAIC 225 mm CCD		2008-02-28	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CLSI BEAMLINE 08ID-1	1.000	CLSI	08ID-1

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	2.3	40	98.4	0.081	0.081	14.6			28328	1	2

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)
	2.3	2.36	89.4		0.435	0.435	3.1

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	SAD	THROUGHOUT	2.3	19.85	27053	26909	1417	100	0.19927	0.19737	0.23514	RANDOM	40.389

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]
-0.61	-0.31		-0.61		0.92

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.82
r_dihedral_angle_3_deg	22.653
r_dihedral_angle_4_deg	20.684
r_dihedral_angle_1_deg	10.011
r_scangle_it	5.372
r_scbond_it	3.478
r_mcangle_it	2.41
r_angle_refined_deg	2.404
r_mcbond_it	1.307
r_nbtor_refined	0.32
r_symmetry_vdw_refined	0.288
r_nbd_refined	0.271
r_chiral_restr	0.219
r_xyhbond_nbd_refined	0.2
r_symmetry_hbond_refined	0.194
r_bond_refined_d	0.026
r_gen_planes_refined	0.01
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
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_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2916
Nucleic Acid Atoms
Solvent Atoms	172
Heterogen Atoms	6

Software

Software
Software Name	Purpose
REFMAC	refinement
MxDC	data collection
XDS	data reduction
XDS	data scaling
PHENIX	phasing