3Q3Q

Crystal Structure of SPAP: an novel alkaline phosphatase from bacterium Sphingomonas sp. strain BSAR-1

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	298	1.6M Ammonium Sulfate, 10% Dioxane, 100mM MES Buffer, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.67	53.97

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 87.37	α = 90
b = 87.37	β = 90
c = 168.16	γ = 90

Symmetry
Space Group	P 41 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		CCD	ADSC QUANTUM 315r		2009-03-17	M	SINGLE WAVELENGTH
2	1	x-ray		CCD	ADSC QUANTUM 315r		2009-03-17	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ESRF BEAMLINE BM30A	0.980159	ESRF	BM30A
2	SYNCHROTRON	ESRF BEAMLINE BM30A	0.976261, 0.980159, 0.980337	ESRF	BM30A

Data Collection

Overall
ID #	Resolution (High)	Resolution (Low)	Percent Possible (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	1.95	49.785					87058			31.39

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (Observed)	R-Work	R-Free	Mean Isotropic B
X-RAY DIFFRACTION	MAD	1.953	49.785	1.32	87053	4420	96.48	0.1569	0.1553	0.1863	42.3213

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]
0.0129			0.0129		-0.0259

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	16.273
f_angle_d	1.019
f_chiral_restr	0.07
f_bond_d	0.007
f_plane_restr	0.004

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	4000
Nucleic Acid Atoms
Solvent Atoms	278
Heterogen Atoms	39

Software

Software
Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.