2QBM

Crystal structure of the P450cam G248T mutant in the cyanide bound state

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.4	277	1 UL OF 15 MG/ML P450 IN 50 MM Potassium phosphate, 250 MM KCL WERE MIXED WITH AN EQUAL VOLUME OF THE RESERVOIR SOLUTION (100 mM Tris, 250 mM KCl, 27-30% PEG 8000, 100 MM DTE), pH 7.4, VAPOR DIFFUSION, SITTING DROP, temperature 277K

Crystal Properties
Matthews coefficient	Solvent content
2.28	46.11

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 63.8	α = 90
b = 64.6	β = 90
c = 105.5	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	MARRESEARCH	DYNAMICALLY BENDABLE MIRROR	2007-02-04	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SLS BEAMLINE X10SA	0.9796	SLS	X10SA

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.8	20	99	0.055	19.1	5.5	40676	40676		-3

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R-Sym I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
	1.8	1.9	95		0.425	3.5	4.8

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	FOURIER SYNTHESIS	THROUGHOUT	PDB entry 1akd	1.8	19.94	40675	38641	2034	100	0.1785	0.17627	0.22045	RANDOM	24.505

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]
0.95			0.54		-1.49

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	34.383
r_dihedral_angle_3_deg	14.497
r_dihedral_angle_4_deg	12.967
r_dihedral_angle_1_deg	5.781
r_scangle_it	3.946
r_scbond_it	2.503
r_angle_refined_deg	1.554
r_mcangle_it	1.453
r_mcbond_it	0.771
r_nbtor_refined	0.306
r_nbd_refined	0.241
r_xyhbond_nbd_refined	0.154
r_symmetry_vdw_refined	0.147
r_symmetry_hbond_refined	0.132
r_metal_ion_refined	0.118
r_chiral_restr	0.115
r_bond_refined_d	0.014
r_gen_planes_refined	0.006
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_other
r_symmetry_vdw_other
r_symmetry_hbond_other
r_symmetry_metal_ion_refined
r_symmetry_metal_ion_other
r_mcbond_other
r_rigid_bond_restr
r_sphericity_free
r_sphericity_bonded

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3215
Nucleic Acid Atoms
Solvent Atoms	416
Heterogen Atoms	57

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
XDS	data reduction
XSCALE	data scaling
CNS	phasing