3EFB | pdb_00003efb

Crystal Structure of Probable sor Operon Regulator from Shigella flexneri

X-RAY DIFFRACTION

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Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	295	0.2M calsium acetate, 9% PEG 8000, 0.1M sodium cacodylate pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 295K

Crystal Properties
Matthews coefficient	Solvent content
1.89	34.86

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 69.536	α = 90
b = 238.463	β = 90
c = 53.759	γ = 90

Symmetry
Space Group	P 21 21 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	SBC-3	mirrors	2008-02-18	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9793, 0.9795	APS	19-BM

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	33.38	97.3	0.057	6.6	8.7	61178	61178			36.8

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	2.03	49.9		0.386	2	5.8

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	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	MAD	THROUGHOUT	2.001	33.378	1.36	61074	61074	3090	99.44	0.203	0.203	0.2	0.1938	0.249	0.1907	random

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]
-9.3522			-3.8133		13.1655

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	18.37
f_angle_deg	1.164
f_bond_d	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	7409
Nucleic Acid Atoms
Solvent Atoms	499
Heterogen Atoms	4

Software

Software
Software Name	Purpose
SBC-Collect	data collection
HKL-3000	data collection
HKL-3000	phasing
MLPHARE	phasing
DM	model building
SHELXD	phasing
RESOLVE	model building
Coot	model building
PHENIX	refinement
HKL-3000	data reduction
HKL-3000	data scaling
DM	phasing
RESOLVE	phasing