Experiment: 1XRI

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	VAPOR DIFFUSION, HANGING DROP	6.5	293	100 MG/ML PROTEIN 0.60 M AMMONIUM SULFATE, .100 M PIPES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
4.58	73.16

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 124.483	α = 90
b = 124.483	β = 90
c = 124.483	γ = 90

Symmetry
Space Group	P 21 3

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	110	CCD	APS-1	sagitally focusing 2nd crystal, Rosenbaum-Rock vertical focusing mirror	2004-07-31	M	MAD
2	1	x-ray	100	CCD	MAR CCD 165 mm	bent cylindrical Si-mirror (Rh coating)	2004-08-08	M	MAD

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	APS BEAMLINE 19-BM	0.9793	APS	19-BM
2	SYNCHROTRON	APS BEAMLINE 14-ID-B	0.9790	APS	14-ID-B

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	3.3	44.01	100	0.115	20.8	21.6	18774	18774

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	3.3	3.38	100		0.291	10.3	22.2

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	MAD, SAD	THROUGHOUT	3.3	44.01	18774	18486	1736	98.5	0.204	0.249	RANDOM	29.12

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]

RMS Deviations
Key	Refinement Restraint Deviation
x_torsion_deg	21
x_angle_deg	1.2
x_torsion_impr_deg	0.93
x_bond_d	0.007

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	2448
Nucleic Acid Atoms
Solvent Atoms	60
Heterogen Atoms	20

Software

Software
Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	phasing
CNS	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 R01GM157729.