2NYB

Crystal structure of E.Coli Iron Superoxide Dismutase Q69E at 1.1 Angstrom resolution

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	5.7	298	100 mM Ammonium acetate pH 5.7, 10 mM Sodium citrate, 22.5% PEG 4000, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.3	47

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 43.508	α = 90
b = 107.596	β = 94.89
c = 84.12	γ = 90

Symmetry
Space Group	P 1 21 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	IMAGE PLATE	MAR scanner 345 mm plate		2002-02-25	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	SSRL BEAMLINE BL11-1	0.88557	SSRL	BL11-1

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	1.1	30.29	100	0.027	28	1.05	283939	283939			13.753

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	1.1	30.29	269833	269833	14104	100	0.16	0.16	0.16	0.174	RANDOM	13.753

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]
0.07		-0.13	0.04		-0.14

RMS Deviations
Key	Refinement Restraint Deviation
r_dihedral_angle_2_deg	33.901
r_dihedral_angle_4_deg	14.258
r_dihedral_angle_3_deg	11.187
r_dihedral_angle_1_deg	5.176
r_sphericity_free	2.114
r_sphericity_bonded	1.907
r_scangle_it	1.707
r_scbond_it	1.287
r_angle_refined_deg	1.067
r_mcangle_it	0.868
r_rigid_bond_restr	0.854
r_mcbond_it	0.548
r_nbtor_refined	0.306
r_nbd_refined	0.195
r_symmetry_vdw_refined	0.155
r_symmetry_hbond_refined	0.085
r_chiral_restr	0.079
r_xyhbond_nbd_refined	0.076
r_bond_refined_d	0.007
r_gen_planes_refined	0.005

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	6661
Nucleic Acid Atoms
Solvent Atoms	1144
Heterogen Atoms	8

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
MAR345	data collection
MOLREP	phasing