Experiment: 3EA1

Crystal Structure of the Y247S/Y251S Mutant of Phosphatidylinositol-Specific Phospholipase C from Bacillus Thuringiensis

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	290	9% PEG 8000, 0.2M Zinc Acetate, 0.1M Sodium Cacodylate, pH 6.5, vapor diffusion, temperature 290K

Crystal Properties
Matthews coefficient	Solvent content
2.37	48.17

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 59.643	α = 90
b = 97.064	β = 90
c = 112.799	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			2005-11-01	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X8C	1.1000	NSLS	X8C

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	1.75	50	93.7	0.069	18.4	5.9		62818

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)
	1.75	1.79	97.5		0.349		3.1	4270

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	1.75	50	59709	4857	89.5	0.197	0.1974	0.23	0.2301	20.465

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]
0.822			-4.671		3.849

RMS Deviations
Key	Refinement Restraint Deviation
c_scangle_it	2.919
c_scbond_it	2.015
c_mcangle_it	1.764
c_mcbond_it	1.191

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4816
Nucleic Acid Atoms
Solvent Atoms	622
Heterogen Atoms	6

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
EPMR	phasing
CNS	refinement
PDB_EXTRACT	data extraction