2Q9F

Crystal structure of human cytochrome P450 46A1 in complex with cholesterol-3-sulphate

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	4.6	291	PEG8000, Potassium Phosphate, Glycerol, NaCl, VAPOR DIFFUSION, HANGING DROP, TEMPERATURE 291K, pH 4.6, VAPOR DIFFUSION, SITTING DROP

Crystal Properties
Matthews coefficient	Solvent content
2.4	48.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 121.85	α = 90
b = 121.85	β = 90
c = 144.03	γ = 90

Symmetry
Space Group	I 41 2 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	ADSC QUANTUM 315	FLAT MIRROR (VERTICAL FOCUSING), SINGLE CRYSTAL SI(111) BENT MONOCHROMATOR (HO RIZONTAL FOCUSING)	2007-01-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.97945	SSRL	BL11-1

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	1.9	44.68	99.8	0.096	0.096	14.8	7.5	42756	42756			32.5

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)
1	1.9	1.95	100		0.97	0.97	1.7	7.5

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 (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MIRAS	THROUGHOUT	1.9	43.08	40957	40957	2025	95.4	0.18727	0.183	0.183	0.216	THICK SHELLS	45.9

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]
-0.1			-0.1		0.2

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	17.6
c_improper_angle_d	6.58
c_angle_deg	2
c_bond_d	0.02
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
c_mcbond_it
c_mcangle_it
c_scbond_it
c_scangle_it

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3488
Nucleic Acid Atoms
Solvent Atoms	130
Heterogen Atoms	116

Software

Software
Software Name	Purpose
SOLVE	phasing
CNS	refinement
Blu-Ice	data collection
MOSFLM	data reduction
SCALA	data scaling