2ZAF

Mechanistic and Structural Analyses of the Roles of Arg409 and Asp402 in the Reaction of the Flavoprotein Nitroalkane Oxidase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	7.5	298	25-30%(W/V) PEG 3350, 35% (V/V) GLYCEROL, 200MM SODIUM CACODYLATE TRIHYDRATE, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.99	58.82

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.319	α = 90
b = 108.319	β = 90
c = 340.012	γ = 120

Symmetry
Space Group	P 32 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	ADSC QUANTUM 315	mirrors	2006-08-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X25	0.9795	NSLS	X25

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	2.5	50	97.1	0.128	17.1	5.6	81166	81166

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)
	2.5	2.74	93.2		0.587	1.9	3.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	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		THROUGHOUT	1c0u	2.5	50	73886	3776	91.03	0.23	0.228	0.277	RANDOM	39.771

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]
0.63	0.31		0.63		-0.94

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.909
r_dihedral_angle_4_deg	17.912
r_dihedral_angle_3_deg	17.424
r_dihedral_angle_1_deg	5.381
r_scangle_it	2.012
r_angle_refined_deg	1.32
r_scbond_it	1.221
r_mcangle_it	0.802
r_mcbond_it	0.424
r_nbtor_refined	0.307

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	38.909
r_dihedral_angle_4_deg	17.912
r_dihedral_angle_3_deg	17.424
r_dihedral_angle_1_deg	5.381
r_scangle_it	2.012
r_angle_refined_deg	1.32
r_scbond_it	1.221
r_mcangle_it	0.802
r_mcbond_it	0.424
r_nbtor_refined	0.307
r_symmetry_hbond_refined	0.294
r_nbd_refined	0.222
r_symmetry_vdw_refined	0.182
r_xyhbond_nbd_refined	0.137
r_chiral_restr	0.088
r_bond_refined_d	0.01
r_gen_planes_refined	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	13228
Nucleic Acid Atoms
Solvent Atoms
Heterogen Atoms	212

Software

Software
Software Name	Purpose
REFMAC	refinement
PDB_EXTRACT	data extraction
CBASS	data collection
HKL-2000	data reduction
SCALEPACK	data scaling
MOLREP	phasing

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.