Experiment: 3U3H

X-Ray Crystallographic Analysis of D-Xylose Isomerase-Catalyzed Isomerization of (R)-Glyceraldehyde

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1		7	298	20mg/ml XI in water was mixed with an equal volume of well solution consisting of 0.2-0.3M Mg formate, pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K

Crystal Properties
Matthews coefficient	Solvent content
2.69	54.35

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 92.651	α = 90
b = 98.148	β = 90
c = 102.597	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	100	CCD	ADSC QUANTUM 315		2005-02-18	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	SYNCHROTRON	NSLS BEAMLINE X12B		NSLS	X12B

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	0.97	19.972	99.7	0.055	39.5	8.5		272713		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)
1	1	1.04	100		0.291	6.1	6.3

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-Factor (Observed)	R-Work (Depositor)	R-Work (DCC)	R-Free (Depositor)	R-Free (DCC)	Mean Isotropic B
X-RAY DIFFRACTION	MOLECULAR REPLACEMENT	0.97	19.97	1	262140	262128	13001	95.8	0.116	0.116	0.1102	0.125	0.1207

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]
0.0497			-0.1328		0.083

RMS Deviations
Key	Refinement Restraint Deviation
f_dihedral_angle_d	13.319
f_angle_d	1.343
f_chiral_restr	0.075
f_plane_restr	0.009
f_bond_d	0.008

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3041
Nucleic Acid Atoms
Solvent Atoms	524
Heterogen Atoms	20

Software

Software
Software Name	Purpose
CBASS	data collection
EPMR	phasing
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling