1OE2

Atomic Resolution Structure of D92E Mutant of Alcaligenes xylosoxidans Nitrite Reductase

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1HAU	PDB ENTRY 1HAU

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5		0.1M MES PH6.5 40-50% PEG-MME 550, 10MM CUSO4,, pH 6.50

Crystal Properties
Matthews coefficient	Solvent content
1.81	32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 78.7	α = 90
b = 78.7	β = 90
c = 98.9	γ = 120

Symmetry
Space Group	P 63

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		2001-02-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SRS BEAMLINE PX9.5		SRS	PX9.5

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (Observed)	R Merge 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	1.12	20	99.9	0.049	23.7	7.2		133004		2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	R Merge I (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.12	1.14	99.8		0.36	3.6	3.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	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	FREE R-VALUE	PDB ENTRY 1HAU	1.12	60	132888	6650	99.9	0.1195	0.1629		0.1792	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
14	2463.5	3042.24

RMS Deviations
Key	Refinement Restraint Deviation
s_non_zero_chiral_vol	0.088
s_zero_chiral_vol	0.085
s_from_restr_planes	0.0357
s_similar_adp_cmpnt	0.031
s_angle_d	0.029
s_bond_d	0.015
s_rigid_bond_adp_cmpnt	0.005
s_similar_dist
s_anti_bump_dis_restr
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2535
Nucleic Acid Atoms
Solvent Atoms	547
Heterogen Atoms	15

Software

Software
Software Name	Purpose
SHELXL-97	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	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 R01GM157729.