Experiment: 3R6E

The structure of Thermococcus thioreducens' inorganic pyrophosphatase bound to sulfate

X-RAY DIFFRACTION

Starting Model(s)

Initial Refinement Model(s)
Type	Source	Accession Code	Details
experimental model	PDB	3I98

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, SITTING DROP	7.5	298	ammonium sulfate, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.16	43.1

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 62.776	α = 105.92
b = 67.283	β = 106.58
c = 74.139	γ = 101.92

Symmetry
Space Group	P 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	MARMOSAIC 225 mm CCD		2008-07-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 22-BM	0.97	APS	22-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	1.14	50	88	0.081		4.1	381987	343378			10.4

Refinement

Statistics
Diffraction ID	Structure Solution Method	Starting model	Resolution (High)	Resolution (Low)	Cut-off Sigma (F)	Number Reflections (All)	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	3I98	1.18	27.364	0.04	343378	308458	1589	88.17	0.1228	0.1227	0.1342	0.1478	0.1589	Random	22.9374

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]
-3.2588	-0.6116	1.0546	-3.71	2.4276	-6.8729

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.745
f_angle_d	1.421
f_chiral_restr	0.092
f_bond_d	0.011
f_plane_restr	0.009

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	8571
Nucleic Acid Atoms
Solvent Atoms	1825
Heterogen Atoms	51

Software

Software
Software Name	Purpose
PHASER	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction
SCALEPACK	data scaling