Experiment: 1OA1

REDUCED HYBRID CLUSTER PROTEIN (HCP) FROM DESULFOVIBRIO VULGARIS HILDENBOROUGH STRUCTURE AT 1.55A RESOLUTION USING SYNCHROTRON RADIATION.

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	Other		PDB FROM ANAEROBILLY AS-ISOLATED HCP PROTEIN 1.35A (D.ARAGAO, PRIVATE COMMUNICATION)

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		6.5	277	25 PEG 4000 0.1M MES PH 6.5, TEMPERATURE 277 KELVIN

Crystal Properties
Matthews coefficient	Solvent content
2.04	40

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 64.053	α = 90
b = 67.464	β = 90
c = 134.955	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	100	CCD	ADSC CCD	TOROIDAL MIRROR MIRROR	2002-05-15	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	1.55	19.5	95.7	0.071	13.2	3.2		81856			19.3

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	1.55	1.59	93.5		0.254	3.6	3.8

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	MOLECULAR REPLACEMENT	THROUGHOUT	PDB FROM ANAEROBILLY AS-ISOLATED HCP PROTEIN 1.35A (D.ARAGAO, PRIVATE COMMUNICATION)	1.55	19.5	77786	4074	95.74	0.132	0.131	0.1475	0.153	0.1654	RANDOM	15.1

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	4217
Nucleic Acid Atoms
Solvent Atoms	819
Heterogen Atoms	27

Software

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