Experiment: 1OA0

REDUCED HYBRID CLUSTER PROTEIN FROM DESULFOVIBRIO DESULFURICANS X-RAY STRUCTURE AT 1.25A RESOLUTION

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	1GNL	[4FE-4S] CUBANE CLUSTER FROM PDB ENTRY 1GNL

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6	277	35% PEG 4000, 0.1M MES PH6.5, TEMPERATURE 277 KELVIN, pH 6.00

Crystal Properties
Matthews coefficient	Solvent content
2.03	39

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 57.75	α = 82.72
b = 61.99	β = 73.74
c = 72.8	γ = 87.44

Symmetry
Space Group	P 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 CCD	TOROIDAL MIRROR	2001-08-08	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE ID14-2		ESRF	ID14-2

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	1.25	28.63	92.7	0.04	7.8	1.8		246621

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	1.25	1.28	78.7		0.098	3.6	1.8

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 (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	DIRECT METHODS	THROUGHOUT	[4FE-4S] CUBANE CLUSTER FROM PDB ENTRY 1GNL	1.25	29.49	240495	6123	92.67	0.13358	0.13315	0.1444	0.15036	0.16	RANDOM	8.172

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]

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8210
Nucleic Acid Atoms
Solvent Atoms	2264
Heterogen Atoms	42

Software

Software
Software Name	Purpose
REFMAC	refinement
DENZO	data reduction
SCALA	data scaling
ACORN	phasing