Experiment: 4BK8

Superoxide reductase (Neelaredoxin) from Ignicoccus hospitalis

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		PRELIMINARY MODEL FROM SAD

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		8.5		85 MM TRISHCL PH 8.5, 8.5 MM NICL2, 15%(V/V) PEG 2000 MONOMETHYL ETHER AND 15%(V/V) GLYCEROL

Crystal Properties
Matthews coefficient	Solvent content
3.76	67.32

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 108.995	α = 90
b = 108.995	β = 90
c = 61.43	γ = 120

Symmetry
Space Group	P 64 2 2

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 315r	BENT CYLINDRICAL MIRROR	2009-07-14	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID23-1		ESRF	ID23-1

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	1.85	47.2	98.6	0.1	18.23	11.6		18718

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	1.85	1.96	98		0.92	2.14	11.6

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	PRELIMINARY MODEL FROM SAD	1.847	47.196	1.88	18715	968	98.68	0.1788	0.1777	0.1811	0.1995	0.2036

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]

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	14.831
f_angle_d	1.051
f_chiral_restr	0.08
f_bond_d	0.007
f_plane_restr	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	989
Nucleic Acid Atoms
Solvent Atoms	102
Heterogen Atoms	1

Software

Software
Software Name	Purpose
PHENIX	refinement
XDS	data reduction
XSCALE	data scaling
PHASER	phasing