2CIB

High throughput screening and x-ray crystallography assisted evaluation of small molecule scaffolds for CYP51 inhibitors

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1X8V	PDB ENTRY 1X8V

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7.5	295	30 % PEG 4000, 8 % ISOPROPANOL, 50 MM HEPES, PH=7.5; 2 MM (2S)-2-[(2,1,3-BENZOTHIADIAZOL-4- YLSULFONYL)AMINO]-2-PHENYL-N-PYRIDIN-4-YLACETAMIDE, T=22 C

Crystal Properties
Matthews coefficient	Solvent content
2.09	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 44.937	α = 90
b = 85.889	β = 90
c = 111.009	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	ADSC CCD	MIRRORS	2006-02-24	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-ID		APS	19-ID

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	1.5	50	98.2	0.06	27.5	5.5		69465			21.2

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	1.5	1.55	98.4		0.55	2.8	5.1

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 ENTRY 1X8V	1.5	33.97	65316	6615	93.8	0.204	0.204	0.226	RANDOM	24.3

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]
6.97			-2.81		-4.16

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	20.7
c_scangle_it	2.9
c_scbond_it	1.93
c_mcangle_it	1.64
c_angle_deg	1.2
c_mcbond_it	1.04
c_improper_angle_d	0.94
c_bond_d	0.006
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3327
Nucleic Acid Atoms
Solvent Atoms	358
Heterogen Atoms	72

Software

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