2AN2

P332G, A333S Double mutant of the Bacillus subtilis Nitric Oxide Synthase

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	PEG4000, Na Cacodylate, K Acetate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.9	57.6

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 80.603	α = 90
b = 93.515	β = 90
c = 63.571	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	193	CCD	ADSC QUANTUM 4		2004-11-16	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	CHESS BEAMLINE F2	0.96	CHESS	F2

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	2.6	30	98.7	12.56	3.62	45763	45160	1	1

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	2.6	2.64	69.1

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 (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	THROUGHOUT	2.6	20	12629	12482	405	100	0.21712	0.21623	0.23736	RANDOM	54.547

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]
-6.42			-2.74		9.16

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	36.3
r_dihedral_angle_4_deg	21.697
r_dihedral_angle_3_deg	12.701
r_scangle_it	9.102
r_scbond_it	5.945
r_mcangle_it	4.502
r_mcbond_it	2.762
r_angle_refined_deg	1.623
r_dihedral_angle_1_deg	1.415
r_symmetry_hbond_refined	0.391
r_symmetry_vdw_refined	0.255
r_nbd_refined	0.239
r_xyhbond_nbd_refined	0.11
r_chiral_restr	0.104
r_gen_planes_refined	0.02
r_bond_refined_d	0.013
r_bond_other_d
r_angle_other_deg
r_gen_planes_other
r_nbd_other
r_nbtor_refined
r_nbtor_other
r_xyhbond_nbd_other
r_metal_ion_refined
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	2917
Nucleic Acid Atoms
Solvent Atoms	171
Heterogen Atoms	72

Software

Software
Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
AMoRE	phasing