2C3P

CRYSTAL STRUCTURE OF THE FREE RADICAL INTERMEDIATE OF PYRUVATE:FERREDOXIN OXIDOREDUCTASE FROM Desulfovibrio africanus

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6		10% PEG6000, 100MM MGCL2, 100MM NA CACODYLATE PH 6

Crystal Properties
Matthews coefficient	Solvent content
2.47	48.37

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 85.966	α = 90
b = 145.84	β = 90
c = 210.822	γ = 90

Symmetry
Space Group	P 21 21 21

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	287	CCD	ADSC CCD		2002-12-11	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID29		ESRF	ID29

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	2.33	50	97.5	0.01	11.73	4.7		524442		2	16.5

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	2.33	2.49	95.6		0.03	5.37	4.5

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB ENTRY 1KEK	2.33	47.37	111926	5637	98.3	0.171	0.171	0.223	RANDOM	25.4

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]
-3.91			1.59		2.33

RMS Deviations
Key	Refinement Restraint Deviation
c_dihedral_angle_d	23.2
c_scangle_it	5.31
c_scbond_it	4.03
c_mcangle_it	3.38
c_mcbond_it	2.4
c_angle_deg	1.6
c_improper_angle_d	0.96
c_bond_d	0.012
c_bond_d_na
c_bond_d_prot
c_angle_d
c_angle_d_na
c_angle_d_prot
c_angle_deg_na
c_angle_deg_prot
c_dihedral_angle_d_na
c_dihedral_angle_d_prot
c_improper_angle_d_na
c_improper_angle_d_prot

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	18766
Nucleic Acid Atoms
Solvent Atoms	851
Heterogen Atoms	116

Software

Software
Software Name	Purpose
CNS	refinement
XDS	data reduction
XSCALE	data scaling
CNS	phasing