8SBI

Crystal structure of human sterol 14 alpha-demethylase (CYP51) in the ligand-free state

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.4	290	potassium formate, PEG 3350, n-deconyl sucrose

Crystal Properties
Matthews coefficient	Solvent content
1.87	34

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 143.81	α = 90
b = 55.64	β = 90
c = 103.07	γ = 90

Symmetry
Space Group	P 21 21 2

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 MX-300		2023-03-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 21-ID-F	0.97872	APS	21-ID-F

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	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	2.73	49.01	98.2	0.126	0.076	9.1	4		22239			54.7

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Rpim I (All)	CC (Half)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.73	2.8	96.2		0.874	0.524	0.672	1.3	3.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	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	2.73	49.01	21099	1101	97.99	0.23085	0.23007	0.24575	RANDOM	51.162

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]
1.11			1.67		-2.78

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	24.144
r_dihedral_angle_3_deg	16.965
r_long_range_B_other	7.071
r_long_range_B_refined	7.07
r_scangle_other	6.118
r_dihedral_angle_1_deg	5.163
r_mcangle_it	4.397
r_mcangle_other	4.396
r_scbond_it	4.353
r_scbond_other	4.348
r_mcbond_it	2.996
r_mcbond_other	2.996
r_angle_refined_deg	1.105
r_angle_other_deg	0.583
r_chiral_restr	0.048
r_bond_other_d	0.016
r_gen_planes_other	0.008
r_bond_refined_d	0.007
r_gen_planes_refined	0.004
r_dihedral_angle_4_deg
r_nbd_refined
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_refined
r_xyhbond_nbd_other
r_metal_ion_refined
r_metal_ion_other
r_symmetry_vdw_refined
r_symmetry_vdw_other
r_symmetry_hbond_refined
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_scangle_it
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7130
Nucleic Acid Atoms
Solvent Atoms	83
Heterogen Atoms	86

Software

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