4DQK

Crystal structure of the FAD binding domain of cytochrome P450 BM3

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	6.5	293	2 microL of mother liquor to 2 microL of 12 mg/ml FAD domain. Crystals were obtained using a well solution of 28% polyethylene glycol 8000, 0.3 M ammonium sulfate, cacodylate buffer pH 6.5. Crystals of dimensions 70 x 70 x 900 M formed after 4-7 days. In order to form a coenzyme complex with NADP+, C773A/C999A FAD domain crystals were soaked in a 10 mM NADP+ solution for 10 minutes., VAPOR DIFFUSION, SITTING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.48	72.54

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 191.387	α = 90
b = 191.387	β = 90
c = 74.211	γ = 120

Symmetry
Space Group	P 31 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	MAR CCD 165 mm		2003-05-05	M	SINGLE WAVELENGTH

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

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	2.4	29.36	100			57823	57823

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	MOLECULAR REPLACEMENT	THROUGHOUT	2.4	29.36	57823	57823	3086	100	0.21507	0.21507	0.21292	0.25647	RANDOM	30.578

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]
0.06	0.03		0.06		-0.09

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.528
r_dihedral_angle_4_deg	19.871
r_dihedral_angle_3_deg	18.112
r_dihedral_angle_1_deg	6.688
r_scangle_it	5.513
r_scbond_it	3.426
r_mcangle_it	2.222
r_angle_refined_deg	1.991
r_mcbond_it	1.167
r_angle_other_deg	1.09
r_mcbond_other	0.266
r_chiral_restr	0.127
r_bond_refined_d	0.026
r_gen_planes_refined	0.009
r_bond_other_d	0.001
r_gen_planes_other	0.001
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_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5855
Nucleic Acid Atoms
Solvent Atoms	274
Heterogen Atoms	181

Software

Software
Software Name	Purpose
HKL-2000	data collection
PHASER	phasing
REFMAC	refinement
HKL-3000	data reduction
HKL-2000	data scaling