3KBS

Room Temperature X-ray structure of D-Xylose Isomerase in complex with 2Cd(2+) co-factors

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	batch	7.7	293	40mg/ml protein, 5mM CdCl2, 30% (v/v) ammonium sulfate (sat.), pH 7.7, batch, temperature 293K

Crystal Properties
Matthews coefficient	Solvent content
2.77	55.59

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 93.63	α = 90
b = 99.54	β = 90
c = 102.9	γ = 90

Symmetry
Space Group	I 2 2 2

Diffraction

Diffraction Experiment
ID #	Crystal ID	Scattering Type	Data Collection Temperature	Detector	Detector Type	Details	Collection Date	Monochromator	Protocol
1	1	x-ray	293	IMAGE PLATE	RIGAKU RAXIS IV++		2007-06-03	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE		1.54

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	1.8	10	88			44199	38895	4	2

Highest Resolution Shell
ID #	Resolution (High)	Resolution (Low)	Percent Possible (All)	Percent Possible (Observed)	Mean I Over Sigma (Observed)	Redundancy	Number Unique Reflections (All)
1	1.8	1.88	90

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Factor (Observed)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	AB INITIO	FREE R	1.8	10	44199	2231	99.2	0.2217	0.2184		0.2842	RANDOM

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]

Coordinate Error
Structure Solution Method	Refinement High Resolution	Refinement Low Resolution
		3323

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.075
s_non_zero_chiral_vol	0.037
s_approx_iso_adps	0.032
s_zero_chiral_vol	0.029
s_from_restr_planes	0.0221
s_angle_d	0.022
s_anti_bump_dis_restr	0.009
s_bond_d	0.006
s_similar_dist
s_rigid_bond_adp_cmpnt

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3053
Nucleic Acid Atoms
Solvent Atoms	286
Heterogen Atoms	2

Software

Software
Software Name	Purpose
CrystalClear	data collection
SHELX	model building
SHELXL-97	refinement
CrystalClear	data reduction
CrystalClear	data scaling
SHELX	phasing

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.