3QYS

Room Temperature X-ray Structure of D-Xylose Isomerase in complex with 0.6Ni2+ cation bound in M2 metal binding site at pH=5.8

X-RAY DIFFRACTION

Crystallization

Crystalization Experiments
ID	Method	pH	Temperature	Details
1	batch crystallization	5.8	280	apo-XI was crystallized with ammonium sulfate as precipitant; 0.2mM Ni2+ salt was added to make the complex, pH 5.8, batch crystallization, temperature 280K

Crystal Properties
Matthews coefficient	Solvent content
2.42	56.2

Crystal Data

Unit Cell
Length ( Å )	Angle ( ˚ )
a = 94.9	α = 90
b = 99.63	β = 90
c = 102.84	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		2010-06-15	M	SINGLE WAVELENGTH

Radiation Source
ID #	Source	Type	Wavelength List	Synchrotron Site	Beamline
1	ROTATING ANODE	RIGAKU FR-E DW	1.5418

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	1.85	31.6	94.5	0.059	14	3.89		39184	4	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	1.85	1.92	67.9		0.258	2.4	1.61

Refinement

Statistics
Diffraction ID	Structure Solution Method	Cross Validation method	Starting model	Resolution (High)	Resolution (Low)	Number Reflections (All)	Number Reflections (Observed)	Number Reflections (R-Free)	Percent Reflections (Observed)	R-Factor (All)	R-Work	R-Free	R-Free Selection Details	Mean Isotropic B
X-RAY DIFFRACTION	AB INITIO PHASING	FREE R	NONE	1.85	10	38893	38893	1958	93.5	0.1734	0.1706	0.2175	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
3		3279.6

RMS Deviations
Key	Refinement Restraint Deviation
s_similar_adp_cmpnt	0.083
s_non_zero_chiral_vol	0.049
s_zero_chiral_vol	0.038
s_angle_d	0.024
s_from_restr_planes	0.0224
s_anti_bump_dis_restr	0.01
s_bond_d	0.007
s_similar_dist
s_rigid_bond_adp_cmpnt
s_approx_iso_adps

Non-Hydrogen Atoms Used in Refinement
Non-Hydrogen Atoms	Number
Protein Atoms	3053
Nucleic Acid Atoms
Solvent Atoms	269
Heterogen Atoms	1

Software

Software
Software Name	Purpose
HKL-2000	data collection
SHELX	model building
SHELXL-97	refinement
d*TREK	data reduction
d*TREK	data scaling
SHELX	phasing

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.