Experiment: 2B4U

Structure of the C252S mutant of Selenomonas ruminantium PTP-like phytase

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION	6.5	295	1.35 M ammonium sulfate, 0.90 M NaCl, 1 % 1,6 hexandiol, pH 6.5, VAPOR DIFFUSION, temperature 295K
2	VAPOR DIFFUSION	6.5	295	1.35 M ammonium sulfate, 0.90 M NaCl, 1 % 1,6 hexandiol, pH 6.5, VAPOR DIFFUSION, temperature 295K

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 45.837	α = 90
b = 137.187	β = 103.53
c = 79.954	γ = 90

Symmetry
Space Group	P 1 21 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 QUANTUM 4	double crystal	2004-07-29	M	SINGLE WAVELENGTH
2	1	x-ray		CCD	Nonius Kappa CCD	osmic mirror	2004-07-30	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	ALS BEAMLINE 8.3.1	1.0206	ALS	8.3.1
2	ROTATING ANODE	ENRAF-NONIUS FR591

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	2	50	79	0.094		3.1	51554	48658	1.5	2

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)
	2	2.07	64.9	74.9	0.565		2.9

Refinement

Statistics
Diffraction ID	Structure Solution Method	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (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	2	40	85	51554	48658	1117	79	0.197	0.1994	0.232	0.2328	random	19.207

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]
3.102		-3.297	2.722		-5.824

RMS Deviations
Key	Refinement Restraint Deviation
c_angle_deg	1.054
c_bond_d	0.006

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	5114
Nucleic Acid Atoms
Solvent Atoms	718
Heterogen Atoms	25

Software

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