2IJ7

Structure of Mycobacterium tuberculosis CYP121 in complex with the antifungal drug fluconazole

X-RAY DIFFRACTION

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Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1N40	1N40/2IJ5
experimental model	PDB	2IJ5	1N40/2IJ5

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7	278	PEG 3350 and 0.2M NaSCN, saturating fluconazole conc., pH 7.0, VAPOR DIFFUSION, SITTING DROP, temperature 278K

Crystal Properties
Matthews coefficient	Solvent content
2.46	49.92

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 60.805	α = 90
b = 129.898	β = 90
c = 323.393	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	100	CCD	ADSC QUANTUM 210		2005-01-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-3	0.93	ESRF	ID14-3

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	20	98.9	0.087	9.4		166629	166629

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	1N40/2IJ5	1.9	20	166629	166629	8786	89.9	0.17035	0.17035	0.16736	0.22644	RANDOM	26.878

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]
0.34			0.42		-0.76

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	30.76
r_dihedral_angle_4_deg	16.31
r_dihedral_angle_3_deg	14.844
r_sphericity_free	5.899
r_dihedral_angle_1_deg	5.647
r_scangle_it	3.394
r_scbond_it	2.452
r_angle_refined_deg	1.601
r_mcangle_it	1.548
r_sphericity_bonded	1.462
r_rigid_bond_restr	1.349
r_mcbond_it	1.25
r_angle_other_deg	0.867
r_mcbond_other	0.408
r_symmetry_vdw_other	0.288
r_nbd_refined	0.217
r_symmetry_hbond_refined	0.215
r_nbd_other	0.193
r_xyhbond_nbd_refined	0.178
r_nbtor_refined	0.174
r_symmetry_vdw_refined	0.134
r_chiral_restr	0.091
r_nbtor_other	0.088
r_bond_refined_d	0.017
r_xyhbond_nbd_other	0.017
r_gen_planes_refined	0.006
r_bond_other_d	0.003
r_gen_planes_other	0.001
r_metal_ion_refined
r_metal_ion_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	18072
Nucleic Acid Atoms
Solvent Atoms	1982
Heterogen Atoms	434

Software

Software
Software Name	Purpose
REFMAC	refinement
ADSC	data collection
DENZO	data reduction
SCALEPACK	data scaling
PHASER	phasing